Nanosecond infrared laser (NIRL) for cutting roots of human teeth: thermal effects and quality of cutting edges
Friedrich R, Kohlrusch F, Ricken T, Grimm J, Gosau M, Hahn M, von Kroge S, Hahn J
LASER MED SCI. 2024;39(1):227.

Neurofibromatosis type 1-associated plexiform neurofibromas of the neck: topography of lesions and surgical treatment data of 69 patients
Friedrich R, Löhmann D
ORAL MAXILLOFAC SURG. 2024;28(1):393-404.

Multiple central giant cell granuloma of the jaws: diagnostic signposts of Noonan syndrome and RASopathy
Friedrich R, Rutkowski R, Gosau M
ORAL MAXILLOFAC SURG. 2024;28(2):991-997.

Dental Developmental Stages and Decayed, Missing, and Restored Teeth in Neurofibromatosis Type 1-affected Children and Adolescents
Friedrich R, Schön M
Journal of clinical and experimental dentistry. 2024;16(3):e300-e322.

The Role of 25-OH Vitamin D in Alzheimer's Disease through Mendelian Randomization and MRI
Fu L, Vollkommer T, Fuest S, Gosau M, Feng H, Yan M, Smeets R, Friedrich R
QJM-INT J MED. 2024 [Epub ahead of print].

Retinol-binding protein type 1 expression predicts poor prognosis in head and neck squamous cell carcinoma
Fu L, Yan M, Yu X, Shao M, Gosau M, Friedrich R, Vollkommer T, Smeets R, Feng H, Xu L
BMC CANCER. 2024;24(1):1277.

Retracing RAS signaling by correlating protein expression in different subtypes of neurofibromatosis 1-associated nerve sheath tumors
Hagel C, Nörnberg L, Friedrich R
CLIN NEUROPATHOL. 2024;43(4):104-112.

PIK3CA Hotspot Mutations in Saliva as a Diagnostic Marker in Oral Squamous Cell Carcinoma Patients
Krüger K, Grust A, Muallah D, Patenge A, Wikman H, Mesa M, Knust E, Sartori A, Smeets R, Kluwe L, Friedrich R, Burg S
ANTICANCER RES. 2024;44(6):2369-2376.

Raman difference spectroscopy and U-Net convolutional neural network for molecular analysis of cutaneous neurofibroma
Matthies L, Amir-Kabirian H, Gebrekidan M, Braeuer A, Speth U, Smeets R, Hagel C, Gosau M, Knipfer C, Friedrich R
PLOS ONE. 2024;19(4):.

Raman spectroscopy and U-Net deep neural network in antiresorptive drug-related osteonecrosis of the jaw
Matthies L, Gebrekidan M, Braeuer A, Friedrich R, Stelzle F, Schmidt C, Smeets R, Assaf A, Gosau M, Rolvien T, Knipfer C
ORAL DIS. 2024;30(4):2439-2452.

How to make full use of dental pulp stem cells: an optimized cell culture method based on explant technology
Wu Y, Sun J, Wang W, Wang Y, Friedrich R
FRONT BIOENG BIOTECH. 2024;12:1324049.

The role of herpes simplex virus infection in the etiology of head and neck cancer-a Mendelian randomization study
Yan M, Xiao L, Gosau M, Smeets R, Feng H, Burg S, Fu L, Friedrich R
FRONT IMMUNOL. 2024;15:1278327.

ERN GENTURIS tumour surveillance guidelines for individuals with neurofibromatosis type 1
Carton C, Evans D, Blanco I, Friedrich R, Ferner R, Farschtschi S, Salvador H, Azizi A, Mautner V, Röhl C, Peltonen S, Stivaros S, Legius E, Oostenbrink R
ECLINICALMEDICINE. 2023;56:.

Mandibular symmetry on posterior-anterior cephalograms of neurofibromatosis type 1 patients with facial plexiform neurofibroma
Friedrich R, Christ G, Scheuer H
GMS INTERDISCIP PLAS. 2023;12:Doc11.

Neurofibromatosis Type 1-Associated Plexiform Neurofibromas of the Face and Adjacent Head Regions: Topography of Lesions and Surgical Treatment Data of 179 Patients
Friedrich R, Modemann M
J MAXILLOFAC ORAL SU. 2023;22(3):511-524.

Scoring system for assessing the symmetry of tooth development in mixed dentition
Friedrich R, Schön M
Journal of clinical and experimental dentistry. 2023;15(9):e726-e733.

Expression of Ras signaling pathway proteins and developmental factors in peripheral nerve sheath tumors of patients with neurofibromatosis type 1
Hagel C, Nörnberg L, Friedrich R
CLIN NEUROPATHOL. 2023;42(4):150-160.

Atypical Neurofibromas reveal distinct epigenetic features with proximity to benign peripheral nerve sheath tumor entities
Kresbach C, Dottermusch M, Eckhardt A, Ristow I, Paplomatas P, Altendorf L, Wefers A, Bockmayr M, Belakhoua S, Tran I, Pohl L, Neyazi S, Bode H, Farschtschi S, Well L, Friedrich R, Reuss D, Snuderl M, Hagel C, Mautner V, Schüller U
NEURO-ONCOLOGY. 2023;25(9):1644-1655.

Relative size of fungiform papillae in patients with neurofibromatosis Type 1
Speth U, Kluwe L, Gosau M, Friedrich R
J STOMATOL ORAL MAXI. 2023;124(3):101394.

Evaluation of the sense of taste and smell in patients with Neurofibromatosis Type 1
Speth U, König D, Burg S, Gosau M, Friedrich R
J STOMATOL ORAL MAXI. 2023;124(1):.

Association between C-Reactive protein and periodontitis in an obese population from the NHANES 2009-2010
Sun J, Wang W, Li D, Song J, Chen Z, Chen L, Smeets R, Beikler T, Strenge J, Yang Z, Friedrich R
BMC ORAL HEALTH. 2023;23(1):512.

Analysis of 5-Year-old children's oral health service utilization and influencing factors in Guizhou Province, China (2019-2020)
Wu J, Chen L, Guan M, Dai T, Friedrich R, Sun J, Yang W
BMC ORAL HEALTH. 2023;23(1):627.

Correlations between gut microbiota and lichen planus: a two-sample Mendelian randomization study
Yan M, Ouyang Y, Xiao L, Ao M, Gosau M, Friedrich R, Smeets R, Fu L, Feng H, Burg S
FRONT IMMUNOL. 2023;14:1235982.

Characterization of Dental Pulp Stem Cell Populations in the Teeth of Patients With Neurofibromatosis Type 1 - Therapeutic Potential for Bone Tissue Engineering
Yan M, Wang W, Speth U, Kluwe L, Fuest S, Gosau M, Smeets R, Feng H, Friedrich R
IN VIVO. 2023;37(2):548-558.

The causal association between COVID-19 and herpes simplex virus: a Mendelian randomization study
Yan M, Xiao L, Gosau M, Friedrich R, Smeets R, Fu L, Feng H, Burg S
FRONT IMMUNOL. 2023;14:1281292.

Outcome of Ordinary Polymorphous Adenocarcinomas of the Salivary Glands in Comparison With Papillary and Cribriform Subtypes
Clausen S, Falk M, Oesterling F, Fehr A, Stang A, Boecker W, Gesk S, Schatz S, Stenman G, Tiemann K, Loening T, Friedrich R
ANTICANCER RES. 2022;42(3):1455-1463.

Posterior-Anterior Cephalometric Study of Neurofibromatosis Type 1 Patients With Facial Plexiform Neurofibroma: Analysis of Skeletal Symmetry Concerning Midfacial and Skull Base Reference Points (Zygomatic Arch, Mastoid, and Juga)
Friedrich R, Christ G, Scheuer H
ANTICANCER RES. 2022;42(5):2607-2623.

COVID-19-associated Parotid Gland Abscess
Friedrich R, Droste T, Angerer F, Popa B, Koehnke R, Gosau M, Knipfer C
IN VIVO. 2022;36(3):1349-1353.

Oral HRAS Mutation in Orofacial Nevus Sebaceous Syndrome (Schimmelpenning-Feuerstein-Mims-Syndrome): A Case Report With a Literature Survey
Friedrich R, Gosau M, Luebke A, Hagel C, Kohlrusch F, Hahn M, von Kroge S, Hahn J, Wieland I, Zenker M
IN VIVO. 2022;36(1):274-293.

ERBB2 and ERBB3 Growth Factor Receptors, Neuregulin-1, CD44 and Ki-67 Proliferation Index in Neurofibromatosis Type 1-associated Peripheral Nerve Sheath Tumors
Friedrich R, Nörnberg L, Hagel C
ANTICANCER RES. 2022;42(5):2327-2340.

Peripheral Nerve Sheath Tumors in Patients With Neurofibromatosis Type 1: Morphological and Immunohistochemical Study
Friedrich R, Nörnberg L, Hagel C
ANTICANCER RES. 2022;42(3):1247-1261.

Sequential Loss of Mandibular Permanent Incisors in Noonan Syndrome
Friedrich R, Scheuer H
IN VIVO. 2022;36(2):1021-1029.

Unusual Findings in a Patient With Carney Complex due to a Novel PRKAR1A Mutation
Friedrich R, Zenker M
ANTICANCER RES. 2022;42(12):6121-6125.

Corrigendum: DCBLD1 Overexpression is associated with a poor prognosis in head and neck squamous cell carcinoma
Fu L, Yan M, Ma M, Luo Y, Shao M, Gosau M, Friedrich R, Vollkommer T, Feng H, Smeets R
FRONT IMMUNOL. 2022;13:1099835.

DCBLD1 Overexpression Is Associated With a Poor Prognosis in Head and Neck Squamous Cell Carcinoma
Fu L, Yan M, Ma M, Luo Y, Shao M, Gosau M, Friedrich R, Vollkommer T, Feng H, Smeets R
FRONT IMMUNOL. 2022;13:.

A comparative study on the secretion of various cytokines by pulp stem cells at different passages and their neurogenic potential
Yan M, Nada O, Fu L, Li D, Feng H, Chen L, Gosau M, Friedrich R, Smeets R
BIOMED PAP. 2022;166(2):161-167.

Assessment of small fiber neuropathy in patients carrying the non-classical Fabry variant p.D313Y
Cossel K, Muschol N, Friedrich R, Glatzel M, Ammer L, Lohmöller B, Bendszus M, Mautner V, Godel T
MUSCLE NERVE. 2021;63(5):745-750.

Retrospective analysis of bacterial colonization of necrotic bone and antibiotic resistance in 98 patients with medication-related osteonecrosis of the jaw (MRONJ)
Ewald F, Wuesthoff F, Koehnke R, Friedrich R, Gosau M, Smeets R, Rohde H, Assaf A
CLIN ORAL INVEST. 2021;25(5):2801-2809.

Mucoepidermoid carcinoma of the salivary glands revisited with special reference to histologic grading and CRTC1/3-MAML2 genotyping
Fehr A, Werenicz S, Trocchi P, Falk M, Friedrich R, Stammler A, Stang A, Oesterling F, Khil L, Stenman G, Böcker W, Tiemann K, Löning T
VIRCHOWS ARCH. 2021;479(5):975-985.

Complementing the pulp proteome via sampling with a picosecond infrared laser (PIRL)
Feridouni Khamaneh Y, Kiani P, Miller R, Schlüter H, Friedrich R
CLIN ORAL INVEST. 2021;25(12):6757-6768.

Phenotype and Surgical Treatment in a Case of Proteus Syndrome With Craniofacial and Oral Findings
Friedrich R
IN VIVO. 2021;35(3):1583-1594.

Sella Turcica Shape in Fragile X Syndrome
Friedrich R
IN VIVO. 2021;35(6):3581-3584.

A Connective Tissue Neoplasm of the Mandibular Angle Mimicking Stafne's Bone Cavity on Panoramic View
Friedrich R, Chin S, Luebke A, Speth U, Assaf A, Gosau M
ANTICANCER RES. 2021;41(8):3983-3988.

A Posterior-Anterior Cephalometric Study of Skull Symmetry in Patients With Neurofibromatosis Type 1
Friedrich R, Christ G, Scheuer H, Scheuer H
ANTICANCER RES. 2021;41(10):5033-5044.

Relationships of Reference Points, Planes and Skull Symmetry on Posterior-anterior Cephalograms in Healthy Young Adults
Friedrich R, Christ G, Scheuer H, Scheuer H
IN VIVO. 2021;35(4):2227-2237.

Consolidation of Tumorous Mandibular Ramus Defect During Denosumab Treatment for Rapidly Progressive Metastatic Breast Cancer
Friedrich R, Madani E
ANTICANCER RES. 2021;41(10):5081-5087.

Sphenoid Bone Pneumatisation on Lateral Cephalograms of Patients With Neurofibromatosis Type 1
Friedrich R, Scheuer H, Kersten J, Scheuer H
IN VIVO. 2021;35(1):349-361.

Microdont Developing Outside the Alveolar Process and Within Oral Diffuse and Plexiform Neurofibroma in Neurofibromatosis Type 1
Friedrich R, Scheuer H, Zustin J, Luebke A, Hagel C, Scheuer H
ANTICANCER RES. 2021;41(4):2083-2092.

Surgery for Peripheral Nerve Sheath Tumours of the Buttocks, Legs and Feet in 90 Patients With Neurofibromatosis Type 1
Friedrich R, Tuzcu C
IN VIVO. 2021;35(2):889-905.

KRAS Mutation in an Implant-associated Peripheral Giant Cell Granuloma of the Jaw: Implications of Genetic Analysis of the Lesion for Treatment Concept and Surveillance
Friedrich R, Wüsthoff F, Luebke A, Kohlrusch F, Wieland I, Zenker M, Gosau M
IN VIVO. 2021;35(2):947-953.

Neurofibromatosis Type 1 With Cherubism-like Phenotype, Multiple Osteolytic Bone Lesions of Lower Extremities, and Alagille-syndrome: Case Report With Literature Survey
Friedrich R, Zustin J, Luebke A, Rosenbaum T, Gosau M, Hagel C, Kohlrusch F, Wieland I, Zenker M
IN VIVO. 2021;35(3):1711-1736.

Obere Luftwege und Kehlkopf
Hess M, Mousli A, Müller F, Gröbe A, Friedrich R
2021. Atlas der digitalen Volumentomografie. Heiland M, Smeets R, Schulze D, Habermann C (Hrsg.). 1. Aufl. Thieme Deutschlnad, 120-123.

Massive Transoral Bleeding from the Internal Carotid Artery in a Patient With Granulomatosis With Polyangiitis (Wegener)
König D, Sauvigny T, Brekenfeld C, Friedrich R, Gosau M, Assaf A
ANTICANCER RES. 2021;41(7):3667-3672.

Bone Micromorphology and Material Attrition After Sonic, Ultrasonic and Conventional Osteotomies
Rashad A, Schwan S, Nasirpour A, Schmitz I, Hanken H, Friedrich R, Gosau M
IN VIVO. 2021;35(3):1499-1506.

Cytocompatibility of Bone Substitute Materials and Membranes
Schäfer S, Al-Qaddo H, Gosau M, Smeets R, Hartjen P, Friedrich R, Nada O, Vollkommer T, Rashad A
IN VIVO. 2021;35(4):2035-2040.

Evaluation of the Effects of Human Dental Pulp Stem Cells on the Biological Phenotype of Hypertrophic Keloid Fibroblasts
Yan M, Fu L, Nada O, Chen L, Gosau M, Smeets R, Feng H, Friedrich R
CELLS-BASEL. 2021;10(7):.

Compare features of human dental pulp cells cultured from pulp tissues with and without cryopreservation
Yan M, Nada O, Smeets R, Gosau M, Friedrich R, Kluwe L
BIOMED PAP. 2021;165(4):445-451.

Calcipotriol Enhances Efficacy of Imatinib and Nilotinib on Cells Derived from Plexiform Neurofibroma
Zhao Y, Yan M, Mautner V, Smeets R, Gosau M, Kluwe L, Friedrich R
ANTICANCER RES. 2021;41(7):3293-3298.

Optimizing Conditions for Spheroid Formation of Dental Pulp Cells in Cell Culture
Zheng Y, Jiang L, Yan M, Gosau M, Smeets R, Kluwe L, Friedrich R
IN VIVO. 2021;35(4):1965-1972.

Distinctive low epidermal nerve fiber density in schwannomatosis patients provides a major parameter for diagnosis and differential diagnosis
Farschtschi S, Kluwe L, Schön G, Friedrich R, Matschke J, Glatzel M, Hagel C, Mautner V
BRAIN PATHOL. 2020;30(2):386-391.

C-Fiber Loss as a Possible Cause of Neuropathic Pain in Schwannomatosis
Farschtschi S, Mainka T, Glatzel M, Hannekum A, Hauck M, Gelderblom M, Hagel C, Friedrich R, Schuhmann M, Schulz A, Morrison H, Kehrer-Sawatzki H, Luhmann J, Gerloff C, Bendszus M, Bäumer P, Mautner V
INT J MOL SCI. 2020;21(10):.

The Neurofibromatoses
Farschtschi S, Mautner V, McLean A, Schulz A, Friedrich R, Rosahl S
DTSCH ARZTEBL INT. 2020;117(20):354-360.

Lingual Mandibular Bone Depression
Friedrich R, Barsukov E, Kohlrusch F, Zustin J, Hagel C, Speth U, Vollkommer T, Gosau M
IN VIVO. 2020;34(5):2527-2541.

Symptomatic Intraosseous Vascular Malformation of Infraorbital Rim: A Case Report With Literature Survey
Friedrich R, Grzyska U, Kohlrusch F, VON Kroge S, Vollkommer T, Luebke A
ANTICANCER RES. 2020;40(6):3333-3343.

Mosaic Neurofibromatosis Type 1 With Multiple Cutaneous Diffuse and Plexiform Neurofibromas of the Lower Leg
Friedrich R, Hagel C, Kohlrusch F, Schanze I, Wieland I, Zenker M
ANTICANCER RES. 2020;40(6):3423-3427.

Preauricular Swelling Mimicking a Tumour: Dissolution of Mandibular Capitulum Following Trauma in a 15-Year Old Child
Friedrich R, Kohlrusch F
IN VIVO. 2020;34(3):1235-1245.

Vestiges of Ossified Spheno-occipital Suture in an Elderly Patient With Down Syndrome and Lateral Skull Base Fracture
Friedrich R, Kohlrusch F, Grzyska U
IN VIVO. 2020;34(3):1427-1432.

Ablation Precision and Thermal Effects of a Picosecond Infrared Laser (PIRL) on Roots of Human Teeth: A Pilot Study Ex Vivo
Friedrich R, Quade M, Jowett N, Kroetz P, Amling M, Kohlrusch F, Zustin J, Gosau M, SchlÜter H, Miller R
IN VIVO. 2020;34(5):2325-2336.

Supernumerary teeth of permanent dentition in patients with neurofibromatosis type 1
Friedrich R, Scheuer H, Kersten J, Scheuer H
J CRANIO MAXILL SURG. 2020;48(1):98-104.

Assessment of Peripheral Nervous System Alterations in Patients with the Fabry Related GLA-Variant p.A143T
Godel T, V Cossel K, Friedrich R, Glatzel M, Canaan-Kühl S, Duning T, Kronlage M, Heiland S, Bendszus M, Muschol N, Mautner V
DIAGNOSTICS. 2020;10(12):.

Null phenotype of neurofibromatosis type 1 in a carrier of a heterozygous atypical NF1 deletion due to mosaicism
Kluwe L, Friedrich R, Farschtschi S, Hagel C, Kehrer-Sawatzki H, Mautner V
HUM MUTAT. 2020;41(7):1226-1231.

Radiological and Histopathological Features of Internal Tooth Resorption
Koehne T, Zustin J, Amling M, Friedrich R
IN VIVO. 2020;34(4):1875-1882.

A meta-analysis of the pros and cons of partial superficial parotidectomy versus superficial parotidectomy for the treatment of benign parotid neoplasms
Li C, Matthies L, Hou X, Knipfer C, Gosau M, Friedrich R
J CRANIO MAXILL SURG. 2020;48(6):590-598.

Neurofibromatoses Typ 1 (NF1)
Mautner V, Friedrich R, Hagel C
2020. Neuropädiatrie. Evidenzbasierte Therapie. Korinthenberg R, Panteliadis C, Hagel C (Hrsg.). 3. Aufl. Urban & Fischer, ??-??.

Neurofibromatoses Typ 2 (NF2)
Mautner V, Friedrich R, Hagel C
2020. Neuropädiatrie. Evidenzbasierte Therapie. Korinthenberg R, Panteliadis C, Hagel C (Hrsg.). 3. Aufl. Urban & Fischer, ??-??.

Gorlin-Goltz-Syndrom (Nävoid-Basalzellkarzinom)
Panteliadis C, Hagel C, Friedrich R
2020. Neuropädiatrie. Evidenzbasierte Therapie. 3. Aufl. Urban & Fischer, .

Inducing differentiation of human dental pulp cells toward acinar-lineage
Yan M, Kluwe L, Friedrich R, Li X, Ren G, Smeets R, Gosau M, Liu X
AM J TRANSL RES. 2020;12(9):5781-5788.

Expansion of Human Dental Pulp Cells In Vitro Under Different Cryopreservation Conditions
Yan M, Nada O, Kluwe L, Gosau M, Smeets R, Friedrich R
IN VIVO. 2020;34(5):2363-2370.

Propranolol Specifically Suppresses the Viability of Tumorous Schwann Cells Derived from Plexiform Neurofibromas In Vitro
Zou Z, Guo L, Mautner V, Smeets R, Kiuwe L, Friedrich R
IN VIVO. 2020;34(3):1031-1036.

Painful Vater-Pacini neuroma of the digit in neurofibromatosis type 1
Friedrich R, Hagel C
GMS INTERDISCIP PLAS. 2019;8:Doc03.

Symptomatic Mandibular Fibrous Dysplasia With Concurrent Triple X- and Premutation Stage Fragile-X-Syndrome: Case Report With Short Literature Survey
Friedrich R, Kohlrusch F, Luebke A
ANTICANCER RES. 2019;39(12):6769-6780.

Unilaterally Enlarged Mandibular Foramina and Canal Associated With Hyperplastic Lymphatic Tissue of Inferior Alveolar Nerve: Case Report and Short Literature Survey
Friedrich R, Matschke J, Wilczak W
ANTICANCER RES. 2019;39(8):3991-4002.

Non-odontogenic Intraosseous Radiolucent Lesions of the Mandibular Body Are Rare Findings on Panoramic Views of Patients With Neurofibromatosis Type 1
Friedrich R, Scheuer H
ANTICANCER RES. 2019;39(4):1971-1985.

The effect of bisphosphonate medication on orthodontics and orthognathic surgery in patients with osteogenesis imperfecta
Friedrich R, Scheuer H, Höltje W
GMS INTERDISCIP PLAS. 2019;8:Doc06.

Multiple Trichilemmal Cysts of the Scalp
Friedrich R, Wilczak W
ANTICANCER RES. 2019;39(8):4253-4258.

The Influence of an Ultrasonic Cleaning Protocol for CAD/CAM Abutment Surfaces on Cell Viability and Inflammatory Response
Gehrke P, Smeets R, Gosau M, Friedrich R, Madani E, Duddeck D, Fischer C, Tebbel F, Sader R, Hartjen P
IN VIVO. 2019;33(3):689-698.

Comparison of Material-mediated Bone Regeneration Capacities of Sintered and Non-sintered Xenogeneic Bone Substitutes via 2D and 3D Data
Kapogianni E, Barbeck M, Jung O, Arslan A, Kuhnel L, Xiong X, Krastev R, Friedrich R, Schnettler R, Fienitz T, Rothamel D
IN VIVO. 2019;33(6):2169-2179.

Vitamin D receptor expression and serum 25(OH)D concentration inversely associates with burden of neurofibromas
Kluwe L, Hagel C, Friedrich R, Schnabel C, Schön G, Mautner V
EUR J CANCER PREV. 2019;28(3):220-224.

Production and Characterization of Porous Fibroin Scaffolds for Regenerative Medical Application
Kopp A, Smeets R, Gosau M, Friedrich R, Fuest S, Behbahani M, Barbeck M, Rutkowski R, Burg S, Kluwe L, Henningsen A
IN VIVO. 2019;33(3):757-762.

Osteoid Osteoma of the Mandible - Clinical and Histological Findings
Matthies L, Rolvien T, Pakusa T, Knipfer C, Gosau M, Amling M, Friedrich R, Zustin J
ANTICANCER RES. 2019;39(1):291-296.

Manifestations and Treatment of Adult-onset Symptomatic Optic Pathway Glioma in Neurofibromatosis Type 1
Mehlan J, Schüttauf F, Salamon J, Kordes U, Friedrich R, Mautner V
ANTICANCER RES. 2019;39(2):827-831.

Perioperative Management in Patients With Undergoing Direct Oral Anticoagulant Therapy in Oral Surgery - A Multicentric Questionnaire Survey
Precht C, Demirel Y, Assaf A, Pinnschmidt H, Knipfer C, Hanken H, Friedrich R, Wikner J
IN VIVO. 2019;33(3):855-862.

Extent of Inflammation and Foreign Body Reaction to Porous Polyethylene In Vitro and In Vivo
Vollkommer T, Henningsen A, Friedrich R, Felthaus O, Eder F, Morsczeck C, Smeets R, Gehmert S, Gosau M
IN VIVO. 2019;33(2):337-347.

Evaluation of Periodontal Space Widening in Patients with Antiresorptive Drug-related Osteonecrosis of the Jaws (ARONJ) on Panoramic Radiographs
Assaf A, Amberg V, Smeets R, Wikner J, Hanken H, Semmusch J, Ewald F, Rashad A, Friedrich R
ANTICANCER RES. 2018;38(9):5305-5314.

Repair of Occipital Bone Defects in Neurofibromatosis Type 1 by Means of CAD/CAM Prefabricated Titanium Plates
Friedrich R, Emami P, Hagel C, Wikner J, Hanken H
CRANIOMAX TRAUM REC. 2018;11(4):324-330.

Pigmented (melanotic) diffuse neurofibroma of the back in neurofibromatosis type 1
Friedrich R, Hagel C
GMS INTERDISCIP PLAS. 2018;7:Doc04.

Clinical and Microstructural Findings in Paget Disease of the Entire Mandible
Friedrich R, Luebke A, Amling M, Koehne T
J ORAL MAXIL SURG. 2018;76(2):336-346.

A combination of skeletal deformations of the dorsal mandible and temporomandibular region detected in orthopantomograms of patients with neurofibromatosis type 1 indicates an associated ipsilateral plexiform neurofibroma
Friedrich R, Reul A
J CRANIO MAXILL SURG. 2018;46(7):1091-1104.

Decayed, missing, and restored teeth in patients with Neurofibromatosis Type 1
Friedrich R, Reul A
Journal of clinical and experimental dentistry. 2018;10(2):e107-e115.

Periapical Cemento-osseous Dysplasia Is Rarely Diagnosed on Orthopantomograms of Patients with Neurofibromatosis Type 1 and Is Not a Gender-specific Feature of the Disease
Friedrich R, Reul A
ANTICANCER RES. 2018;38(4):2277-2284.

Unilateral Creeping Destruction of Deformed Mandibular Ramus and Angle Associated with Extensive Facial Plexiform Neurofibroma in Neurofibromatosis Type 1: A Case Report with Analysis of the Literature for Diagnosing Osteolytic Events of the Mandible in Tumor-suppressor Gene Syndrome
Friedrich R, Scheuer H
ANTICANCER RES. 2018;38(7):4083-4091.

Plasma Electrolytic Oxidation of Titanium Implant Surfaces: Microgroove-Structures Improve Cellular Adhesion and Viability
Hartjen P, Hoffmann A, Henningsen A, Barbeck M, Kopp A, Kluwe L, Precht C, Quatela O, Gaudin R, Heiland M, Friedrich R, Knipfer C, Grubeanu D, Smeets R, Jung O
IN VIVO. 2018;32(2):241-247.

Phenotypic and genotypic overlap between mosaic NF2 and schwannomatosis in patients with multiple non-intradermal schwannomas
Kehrer-Sawatzki H, Kluwe L, Friedrich R, Summerer A, Schäfer E, Wahlländer U, Matthies C, Gugel I, Farschtschi S, Hagel C, Cooper D, Mautner V
HUM GENET. 2018;137(6-7):543-552.

Differences in maxillomandibular morphology among patients with mucopolysaccharidoses I, II, III, IV and VI: a retrospective MRI study
Koehne T, Köhn A, Friedrich R, Kordes U, Schinke T, Muschol N, Kahl-Nieke B
CLIN ORAL INVEST. 2018;22(3):1541-1549.

Enriching Stem/Progenitor Cells from Dental Pulp Cells by Low-density Culturing
Zhao Y, Zheng Y, Eichhorn W, Klatt J, Henningsen A, Kluwe L, Friedrich R, Gosau M, Smeets R
IN VIVO. 2018;33(1):23-29.

Sella turcica measurements on lateral cephalograms of patients with neurofibromatosis type 1
Friedrich R, Baumann J, Suling A, Scheuer H, Scheuer H
GMS INTERDISCIP PLAS. 2017;6:UNSP 5.

Peripheral nerve sheath tumors of the upper extremity and hand in patients with neurofibromatosis type 1: topography of tumors and evaluation of surgical treatment in 62 patients
Friedrich R, Diekmeier C
GMS INTERDISCIP PLAS. 2017;6:UNSP 15.

Frequency and volumetry of infraorbital ethmoid cells (Haller cells) on cone-beam computed tomograms (CBCT) of the mid-face
Friedrich R, Fraederich M, Schön G
GMS INTERDISCIP PLAS. 2017;6:UNSP 7.

A lateral cephalometry study of patients with neurofibromatosis type 1
Friedrich R, Lehmann J, Rother J, Christ G, Zu Eulenburg C, Scheuer H, Scheuer H
J CRANIO MAXILL SURG. 2017;45(6):809-820.

Pilomatrixoma of the Neck/Shoulder Region Mimicking a Rapidly Growing Neoplasm of Peripheral Nerve Sheath Origin in Neurofibromatosis Type 1
Friedrich R, Schüller U, Hagel C
ANTICANCER RES. 2017;37(12):6907-6910.

Cone-beam tomographic analysis of canalis sinuosus accessory intraosseous canals in the maxilla
Ghandourah A, Rashad A, Heiland M, Hamzi B, Friedrich R
Ger Med Sci. 2017;15:Doc20.

Cytocompatibility of Direct Laser Interference-patterned Titanium Surfaces for Implants
Hartjen P, Nada O, Silva T, Precht C, Henningsen A, Holthaus M, Gulow N, Friedrich R, Hanken H, Heiland M, Zwahr C, Smeets R, Jung O
IN VIVO. 2017;31(5):849-854.

Multifocal Nerve Lesions and LZTR1 Germline Mutations in Segmental Schwannomatosis
Farschtschi S, Mautner V, Pham M, Nguyen R, Kehrer-Sawatzki H, Hutter S, Friedrich R, Schulz A, Morrison H, Jones D, Bendszus M, Bäumer P
ANN NEUROL. 2016;80(4):625-8.

Cone-beam computed tomography of the orbit and optic canal volumes
Friedrich R, Bruhn M, Lohse C
J CRANIO MAXILL SURG. 2016;44(9):1342-1349.

Recurrent Multilocular Mandibular Giant Cell Granuloma in Neurofibromatosis Type 1: Evidence for Second Hit Mutation of NF1 Gene in the Jaw Lesion and Treatment with Curettage and Bone Substitute Materials
Friedrich R, Grob T, Hollants S, Zustin J, Spaepen M, Mautner V, Lübke A, Hagel C, Legius E, Brems H
J CRANIO MAXILL SURG. 2016;44(8):1054-1060.

Expansive Extracranial Growth of Intracranial Meningioma in Neurofibromatosis Type 2
Friedrich R, Hagel C
ANTICANCER RES. 2016;36(6):3161-7.

Expression of the Insulin-like Growth Factor-1 Receptor in Odontogenic Myxoma
Friedrich R, Hagel C, Zustin J
ANTICANCER RES. 2016;36(6):3103-7.

Cheilitis glandularis: Case report with respect to immunohistochemical findings
Friedrich R, Löning T
GMS INTERDISCIP PLAS. 2016;5:Doc04.

Optic Pathway Glioma and Cerebral Focal Abnormal Signal Intensity in Patients with Neurofibromatosis Type 1: Characteristics, Treatment Choices and Follow-up in 134 Affected Individuals and a Brief Review of the Literature
Friedrich R, Nuding M
ANTICANCER RES. 2016;36(8):4095-121.

Recurrent Maxillary Odontogenic Myxoma Following Partial Maxillary Resection and Consecutive Osseous Reconstruction Including Tooth Transplantation
Friedrich R, Scheuer H, Höltje W
ANTICANCER RES. 2016;36(6):3155-60.

Cherubism: A Case Report with Surgical Intervention
Friedrich R, Scheuer H, Zustin J, Grob T
ANTICANCER RES. 2016;36(6):3109-15.

Predictive values derived from lower wisdom teeth developmental stages on orthopantomograms to calculate the chronological age in adolescence and young adults as a prerequisite to obtain age-adjusted informed patient consent prior to elective surgical procedures in young patients with incomplete or mismatched personal data
Friedrich R, Schmidt K, Treszl A, Kersten J
GMS INTERDISCIP PLAS. 2016;5:Doc23.

Pneumatization of the zygomatic process of temporal bone on computed tomograms
Friedrich R, Viezens L, Grzyska U
GMS INTERDISCIP PLAS. 2016;5:Doc16.

Expression of DOG1 (Using SP31) in Poorly Differentiated Carcinoma of the Head and Neck
Friedrich R, Wunder T, Schumacher U, Bartel-Friedrich S, Zustin J
ANTICANCER RES. 2016;36(6):3117-22.

Mucoepidermoid Carcinoma - Unknown Primary Affecting the Neck
Friedrich R, Zustin J
ANTICANCER RES. 2016;36(6):3169-71.

The putative oncogene CPI-17 is up-regulated in schwannoma
Hagel C, Dornblut C, Schulz A, Wiehl U, Friedrich R, Huckhagel T, Mautner V, Morrison H
NEUROPATH APPL NEURO. 2016;42(7):664-668.

Surgically Assisted Rapid Palatomaxillary Expansion With or Without Pterygomaxillary Disjunction: A Systematic Review and Meta-Analysis
Hamedi-Sangsari A, Sadr-Eshkevari P, Al-Dam A, Friedrich R, Freymiller E, Rashad A
J ORAL MAXIL SURG. 2016;74(2):338-348.

Attachment, Viability and Adipodifferentiation of Pre-adipose Cells on Silk Scaffolds with and Without Co-expressed FGF-2 and VEGF.
Hanken H, Göhler F, Smeets R, Heiland M, Gröbe A, Friedrich R, Busch C, Blessmann M, Kluwe L, Hartjen P
IN VIVO. 2016;30(5):567-72.

No correlation between NF1 mutation position and risk of optic pathway glioma in 77 unrelated NF1 patients
Hutter S, Piro R, Waszak S, Kehrer-Sawatzki H, Friedrich R, Lassaletta A, Witt O, Korbel J, Lichter P, Schuhmann M, Pfister S, Tabori U, Mautner V, Jones D
HUM GENET. 2016;135(5):469-75.

A patient with Charlie M Syndrome: Differential diagnosis of Oromandibular Limb Hypogenesis Syndromes
Jung O, Smeets R, Hanken H, Friedrich R, Heiland M, Tagniha A, Labow B
BIOMED PAP. 2016;160(2):310-5.

PEO-generated Surfaces Support Attachment and Growth of Cells In Vitro with No Additional Benefit for Micro-roughness in Sa (0.2-4 μm)
Jung O, Smeets R, Kopp A, Porchetta D, Hiester P, Heiland M, Friedrich R, Precht C, Hanken H, Gröbe A, Hartjen P
IN VIVO. 2016;30(1):27-33.

Mannose 6-phosphate-dependent targeting of lysosomal enzymes is required for normal craniofacial and dental development
Koehne T, Markmann S, Schweizer M, Muschol N, Friedrich R, Hagel C, Glatzel M, Kahl-Nieke B, Amling M, Schinke T, Braulke T
BBA-MOL BASIS DIS. 2016;1862(9):1570–1580.

Sind Vermessungen in der Panoramaschichtaufnahme verlässlich?
Riecke B, Friedrich R, Schulze D, Heiland M, Wikner J
Quintessenz. 2016;66(11):1339-1347.

Optimized 14+1 Receive Coil Array and Position System for 3D High Resolution MRI of Dental and Maxillo-Mandibular Structures
Sedlacik J, Kutzner D, Khokale A, Schulze D, Fiehler J, Celik T, Gareis D, Smeets R, Friedrich R, Heiland M, Assaf A
DENTOMAXILLOFAC RAD. 2016;45(1):20150177.

Obstacles in spatial evaluation of CBCT-reformatted panoramic imaging
Wikner J, Friedrich R, Rashad A, Schulze D, Hanken H, Heiland M, Gröbe A, Riecke B
DENTOMAXILLOFAC RAD. 2016;45(4):20150436.

Linear accuracy and reliability of volume data sets acquired by two CBCT-devices and an MSCT using virtual models: A comparative in-vitro study
Wikner J, Hanken H, zu Eulenburg C, Heiland M, Gröbe A, Assaf A, Riecke B, Friedrich R
ACTA ODONTOL SCAND. 2016;74(1):51-9.

Enrichment and Schwann Cell Differentiation of Neural Crest-derived Dental Pulp Stem Cells
Al-Zer H, Apel C, Heiland M, Friedrich R, Jung O, Kroeger N, Eichhorn W, Smeets R
IN VIVO. 2015;29(3):319-326.

Value of intra- and post-operative cone beam computed tomography (CBCT) for positioning control of a sphenopalatine ganglion neurostimulator in patients with chronic cluster headache
Assaf A, Klatt J, Blessmann M, Kohlmeier C, Friedrich R, Pohlenz P, May A, Heiland M, Jürgens T
J CRANIO MAXILL SURG. 2015;43(3):408-13.

Intraindividual comparison of preoperative (99m)Tc-MDP SPECT/CT and intraoperative and histopathological findings in patients with bisphosphonate- or denosumab-related osteonecrosis of the jaw
Assaf A, Zrnc T, Remus C, Adam G, Zustin J, Heiland M, Friedrich R, Derlin T
J CRANIO MAXILL SURG. 2015;43(8):1461-1469.

Early detection of pulp necrosis and dental vitality after traumatic dental injuries in children and adolescents by 3-Tesla magnetic resonance imaging
Assaf A, Zrnc T, Remus C, Khokale A, Habermann C, Schulze D, Fiehler J, Heiland M, Sedlacik J, Friedrich R
J CRANIO MAXILL SURG. 2015;43(7):1088-1093.

Nasal Speech Associated with Hyperaeration of the Sphenoid Sinus
Fraederich M, Aboelhasan M, Knips J, Heiland M, Friedrich R
IN VIVO. 2015;29(2):281-287.

Vascular endothelial growth factor, basic fibroblast growth factor and epithelial growth factor receptor in peripheral nerve sheath tumors of neurofibromatosis type 1
Friedrich R, Beer C, Glatzel M, Hagel C
ANTICANCER RES. 2015;35(1):137-44.

Vascular Innervation in Benign Neurofibromas of Patients with Neurofibromatosis Type 1
Friedrich R, Behrendt C, Glatzel M, Hagel C
ANTICANCER RES. 2015;35(12):6509-6516.

Ipsilateral Sphenoid Wing Dysplasia, Orbital Plexiform Neurofibroma and Fronto-Parietal Dermal Cylindroma in a Patient with Segmental Neurofibromatosis
Friedrich R, Hagel C, Mautner V
ANTICANCER RES. 2015;35(12):6813-8.

Unilateral gynaecomastia in a 16-month-old boy with neurofibromatosis type 1 - case report and brief review of the literature
Friedrich R, Hagel C, Mautner V
GMS INTERDISCIP PLAS. 2015;4:Doc11.

The Nasopalatine Canal in Adults on Cone Beam Computed Tomograms-A Clinical Study and Review of the Literature
Friedrich R, Laumann F, Zrnc T, Assaf A
IN VIVO. 2015;29(4):467-86.

Vessel and Mast Cell Densities in Sporadic and Syndrome-associated Peripheral Nerve Sheath Tumors
Friedrich R, Naber U, Glatzel M, Hagel C
ANTICANCER RES. 2015;35(9):4713-22.

Efficacy and side-effects of a semi-individualized Chinese herb mixture "Tiáo Gēng Tāng" for menopausal syndrome in China
Jia M, Kluwe L, Liu H, Tang Q, Liu L, Wang Z, Tian L, Zhao L, Chen Y, Friedrich R, Sun Z, Xu L
IN VIVO. 2015;29(1):109-15.

Antibiotic discovery in the age of structural biology - a comprehensive overview with special reference to development of drugs for the treatment of Pseudomonas aeruginosa infection
Koehnke A, Friedrich R
IN VIVO. 2015;29(2):161-7.

Impact of malpositioning on panoramic radiography in implant dentistry
Riecke B, Friedrich R, Schulze D, Loos C, Blessmann M, Heiland M, Wikner J
CLIN ORAL INVEST. 2015;19(4):781-90.

Foreign Body Abscess Mimicking a Malignant Peripheral Nerve Sheath Tumor in a Patient With Neurofibromatosis Type 1
Salamon J, Hagel C, Friedrich R, Mautner V, Derlin T
CLIN NUCL MED. 2015;40(8):674-675.

Preclinical assessment of the anticancer drug response of plexiform neurofibroma tissue using primary cultures
Wei J, Mautner V, Friedrich R, Kluwe L
J CLIN NEUROL. 2015;11(2):172-7.

Purmorphamine and Oxysterols Accelerate and Promote Osteogenic Differentiation of Mesenchymal Stem Cells In Vitro
Wöltje M, Böbel M, Heiland M, Beck-Broichsitter B, Al-Dam A, Gröbe A, Friedrich R, Hanken H, Smeets R
IN VIVO. 2015;29(2):247-254.

Numb chin Syndrome: a rare and often overlooked symptom
Assaf A, Jürgens T, Benecke A, Riecke B, Blessmann M, Zrnc T, Much C, Heiland M, Friedrich R
J ORAL FACIAL PAIN H. 2014;28(1):80-90.

Prevalence of Stafne's bone cavity--retrospective analysis of 14,005 panoramic views
Assaf A, Solaty M, Zrnc T, Fuhrmann A, Scheuer H, Heiland M, Friedrich R
IN VIVO. 2014;28(6):1159-1164.

Evaluation of four different optimized magnetic-resonance-imaging sequences for visualization of dental and maxillo-mandibular structures at 3 T
Assaf A, Zrnc T, Remus C, Schönfeld M, Habermann C, Riecke B, Friedrich R, Fiehler J, Heiland M, Sedlacik J
J CRANIO MAXILL SURG. 2014;42(7):1356-1363.

Intraoperative efficiency of fluorescence imaging by Visually Enhanced Lesion Scope (VELscope(®)) in patients with bisphosphonate related osteonecrosis of the jaw (BRONJ)
Assaf A, Zrnc T, Riecke B, Wikner J, Zustin J, Friedrich R, Heiland M, Smeets R, Gröbe A
J CRANIO MAXILL SURG. 2014;42(5):e157-e164.

Lack of evidence for predictive and prognostic value of cyclin D1 gene polymorphism CCND1 G870A for oral squamous cell carcinoma
Atac A, Riecke B, Assaf A, Gröbe A, Friedrich R, Heiland M, Izbicki J, Kluwe L, Blessmann M
ANTICANCER RES. 2014;34(1):235-8.

Ponticulus posticus is a frequent radiographic finding on lateral cephalograms in nevoid basal cell carcinoma syndrome (Gorlin-Goltz syndrome)
Friedrich R
ANTICANCER RES. 2014;34(12):7395-9.

Rhinophyma in tuberous sclerosis complex: case report with brief review of literature
Friedrich R, Hagel C
GMS INTERDISCIP PLAS. 2014;3:Doc12.

Human Dirofilaria repens infection of the zygomatico-temporal region
Friedrich R, Heiland M, Burchard G, Racz P, Zustin J, Hagel C
J CRANIO MAXILL SURG. 2014;42(5):612-615.

Inflammatory paradental cyst of the first molar (buccal bifurcation cyst) in a 6-year-old boy: case report with respect to immunohistochemical findings
Friedrich R, Scheuer H, Zustin J
IN VIVO. 2014;28(3):333-9.

Lateral periodontal cyst
Friedrich R, Scheuer H, Zustin J
IN VIVO. 2014;28(4):595-8.

Paraffinoma of lips and oral mucosa: case report and brief review of the literature.
Friedrich R, Zustin J
GMS INTERDISCIP PLAS. 2014;3(15.Mai):1-7.

Influence of learning disabilities on the tumour predisposition syndrome NF1--survey from adult patients' perspective
Granström S, Friedrich R, Langenbruch A, Augustin M, Mautner V
ANTICANCER RES. 2014;34(7):3675-81.

Prognostic relevance of circulating tumor cells in blood and disseminated tumor cells in bone marrow of patients with squamous cell carcinoma of the oral cavity
Gröbe A, Blessmann M, Hanken H, Friedrich R, Schön G, Wikner J, Harms-Effenberger K, Kluwe L, Heiland M, Pantel K, Riethdorf S
CLIN CANCER RES. 2014;20(2):425-33.

Bone substitutes enhance osteogenic differentiation of mesenchymal stem cells in three-dimensional scaffolds
Hanken H, Alpers J, Böbel M, Wöltje M, Hartjen P, Friedrich R, Jung O, Rendenbach C, Gröbe A, Heiland M, Al-Dam A, Eichhorn W, Smeets R
IN VIVO. 2014;28(5):733-9.

Osteogenic differentiation of mesenchymal stem cells in fibrin-hydroxyapatite matrix in a 3-dimensional mesh scaffold
Jung O, Hanken H, Smeets R, Hartjen P, Friedrich R, Schwab B, Gröbe A, Heiland M, Al-Dam A, Eichhorn W, Sehner S, Kolk A, Wöltje M, Stein J
IN VIVO. 2014;28(4):477-82.

Neurokutane Erkrankungen
Panteliadis C, Hagel C, Mautner V, Friedrich R, Rosenbaum T
2014. Neuropädiatrie - Evidenzbasierte Therapie. 2. Aufl. Elsevier, .

18F-FDG PET/CT for detection of malignant peripheral nerve sheath tumours in neurofibromatosis type 1: tumour-to-liver ratio is superior to an SUVmax cut-off
Salamon J, Veldhoen S, Apostolova I, Bannas P, Yamamura J, Herrmann J, Friedrich R, Adam G, Mautner V, Derlin T
EUR RADIOL. 2014;24(2):405-12.

Nilotinib is more potent than imatinib for treating plexiform neurofibroma in vitro and in vivo
Wei J, Freytag M, Schober Y, Nockher W, Mautner V, Friedrich R, Manley P, Kluwe L, Kurtz A
PLOS ONE. 2014;9(10):e107760.

Efficacy and selectivity of nilotinib on NF1-associated tumors in vitro
Wei J, Schnabel C, Spyra M, Mautner V, Friedrich R, Hagel C, Manley P, Kluwe L
J NEURO-ONCOL. 2014;116(2):231-6.

Pseudoepitheliomatous hyperplasia associated with bisphosphonate-related osteonecrosis of the jaw
Zustin J, Reske D, Zrnc T, Heiland M, Scheuer H, Assaf A, Friedrich R
IN VIVO. 2014;28(1):125-31.

Incidence of bisphosphonate-related osteonecrosis of the jaw in consideration of primary diseases and concomitant therapies
Assaf A, Smeets R, Riecke B, Weise E, Gröbe A, Blessmann M, Steiner T, Wikner J, Friedrich R, Heiland M, Hoelzle F, Gerhards F
ANTICANCER RES. 2013;33(9):3917-24.

Comparative effectiveness of 18F-FDG PET/CT versus whole-body MRI for detection of malignant peripheral nerve sheath tumors in neurofibromatosis type 1
Derlin T, Tornquist K, Münster S, Apostolova I, Hagel C, Friedrich R, Wedegärtner U, Mautner V
CLIN NUCL MED. 2013;38(1):e19-25.

First description of a hybrid tumor of the sublingual gland
Eichhorn W, Precht C, Wehrmann M, Hickmann E, Eichhorn M, Zeuch J, Löning T, Friedrich R, Heiland M, Hoffmann J
ANTICANCER RES. 2013;33(10):4567-71.

Ultrasonographically supported removal of foreign bodies of the eye lid and parapharyngeal space in a 13-year-old boy subjected to shot injuries in early childhood
Friedrich R
GMS INTERDISCIP PLAS. 2013;2:1-6.

Cone beam computed tomography in the differential diagnosis of mental neuropathy (numb chin syndrome) in metastatic colon cancer
Friedrich R, Heiland M, Assaf A, Riecke B
ANTICANCER RES. 2013;33(4):1757-60.

Analysis of orbital plain radiographs for orbital deformities in neurofibromatosis type 1 patients, with special reference to alterations of the orbital rim as indicators of adjacent plexiform neurofibroma
Friedrich R, Rother J, Christ G, Lehmann M, zu Eulenburg C, Giese M, Scheuer H
ANTICANCER RES. 2013;33(3):1081-90.

B-scan ultrasonographic monitoring of orthotopic xenografted plexiform neurofibroma in mice
Gleiss J, Demestre M, Spyra M, Eschenhagen T, Hagel C, Mautner V, Kluwe L, Friedrich R
IN VIVO. 2013;27(6):723-7.

Growth behavior of plexiform neurofibromas after surgery
Nguyen R, Ibrahim C, Friedrich R, Westphal M, Schuhmann M, Mautner V
GENET MED. 2013;15(9):691-7.

Evaluation of intratumoural heterogeneity on ¹⁸F-FDG PET/CT for characterization of peripheral nerve sheath tumours in neurofibromatosis type 1
Salamon J, Derlin T, Bannas P, Busch J, Herrmann J, Bockhorn M, Hagel C, Friedrich R, Adam G, Mautner V
EUR J NUCL MED MOL I. 2013;40(5):685-92.

Enhanced podoplanin expression in chronic maxillary sinusitis
Zustin J, Scheuer H, Knecht R, Friedrich R
IN VIVO. 2013;27(4):551-4.

Craniofacial fibrous dysplasia (CFD) of the maxilla in an 11-year old boy: a case report.
Assaf A, Benecke A, Riecke B, Zustin J, Fuhrmann A, Heiland M, Friedrich R
J CRANIO MAXILL SURG. 2012;40(8):788-792.

Extensive sublingual epidermoid cyst--diagnosis by immunohistological analysis and proof by podoplanin.
Assaf A, Heiland M, Blessmann M, Friedrich R, Zustin J, Al Dam A
IN VIVO. 2012;26(2):323-326.

Adhesion molecule L1 is down-regulated in malignant peripheral nerve sheath tumors versus benign neurofibromatosis type 1-associated tumors
Blessmann M, Gröbe A, Quaas A, Kaifi J, Mistakidis G, Bernreuther C, Sauter G, Gros S, Rawnaq T, Friedrich R, Mautner V, Smeets R, Heiland M, Schachner M, Izbicki J
OR SURG OR MED OR PA. 2012;113(2):239-44.

Squamous cell carcinoma of the sole of the foot in neurofibromatosis type 1.
Friedrich R, Al Dam A, Hagel C
ANTICANCER RES. 2012;32(5):2165-2168.

Expression of podoplanin in primary and metastatic poorly differentiated and undifferentiated carcinomas of the head and neck.
Friedrich R, Bartel-Friedrich S, Hagel C
ANTICANCER RES. 2012;32(5):2019-2022.

Chromosomal rearrangements in PLAG1 of myoepithelial salivary gland tumours.
Friedrich R, Dilcher J, Jaehne M, Löning T
ANTICANCER RES. 2012;32(5):1977-1981.

Surgery for atypical plexiform neurofibromas of the trunk in NF1 with high standardised uptake value (SUV) in positron-emission tomography (PET) expressing podoplanin: a long-term follow-up.
Friedrich R, Gawad K, Derlin T, Zustin J, Hagel C
ANTICANCER RES. 2012;32(10):4547-4551.

Size of tooth crowns and position of teeth concerning the extension of facial plexiform neurofibroma in patients with neurofibromatosis type 1.
Friedrich R, Giese M, Stelljes C, Froeder C, Scheuer H
ANTICANCER RES. 2012;32(5):2207-2214.

Vascular wall cells contribute to tumourigenesis in cutaneous neurofibromas of patients with neurofibromatosis type 1. A comparative histological, ultrastructural and immunohistochemical study.
Friedrich R, Holstein A, Middendorff R, Davidoff M
ANTICANCER RES. 2012;32(5):2139-2158.

Transoral or parapharyngeal approach to remove sporadic skull base schwannoma.
Friedrich R, Reinhard E
ANTICANCER RES. 2012;32(10):4557-4559.

Odontogenic myxomas are not associated with GNAS1 mutations.
Friedrich R, Scheuer H, Assaf A, Grob T, Zustin J
ANTICANCER RES. 2012;32(5):2169-2172.

Nasolabial cyst: case report with respect to immunohistochemical findings.
Friedrich R, Scheuer H, Assaf A, Zustin J
IN VIVO. 2012;26(3):453-458.

Osteochondroma of the mandibular condyle. Report of a case with 5-year follow-up.
Friedrich R, Scheuer H, Fuhrmann A, Hagel C, Zustin J
ANTICANCER RES. 2012;32(10):4553-4556.

Radiographic findings of odontogenic myxomas on conventional radiographs.
Friedrich R, Scheuer H, Fuhrmann A, Zustin J, Assaf A
ANTICANCER RES. 2012;32(5):2173-2177.

Anterior lingual mandibular bone depression in an 11-year-old child.
Friedrich R, Scheuer H, Gröbe A
IN VIVO. 2012;26(6):1103-1107.

Expression of podoplanin in nevoid basal cell carcinoma syndrome-associated keratocystic odontogenic tumours.
Friedrich R, Scheuer H, Zustin J
ANTICANCER RES. 2012;32(5):2125-2127.

Scattering effects of irradiation on surroundings calculated for a small dental implant.
Friedrich R, Todorovic M, Heiland M, Scheuer H, Krüll A
ANTICANCER RES. 2012;32(5):2043-2046.

An unilateral basal bone defect of the mandible occupied by fatty tissue: Stafne's cavity.
Friedrich R, Zustin J, Scheuer H, Assaf A, Gröbe A
IN VIVO. 2012;26(6):1045-1048.

Hyaluronan in intra-operative edema of NF1-associated neurofibromas.
Hagel C, Behrens T, Prehm P, Schnabel C, Glatzel M, Friedrich R
NEUROPATHOLOGY. 2012;32(4):406-414.

Internal tumor burden in neurofibromatosis Type I patients with large NF1 deletions.
Kluwe L, Nguyen R, Vogt J, Bengesser K, Mussotter T, Friedrich R, Jett K, Kehrer-Sawatzki H, Mautner V
GENE CHROMOSOME CANC. 2012;51(5):447-451.

Coxsackie adenovirus receptor expression in carcinomas of the head and neck
Wunder T, Schumacher U, Friedrich R
ANTICANCER RES. 2012;32(3):1057-62.

Long-term follow-up of blowout fractures of the orbital floor reconstructed with a polyglactin 910/PDS implant
Blake F, Blessmann M, Smeets R, Friedrich R, Schmelzle R, Heiland M, Eichhorn W
EUR J TRAUMA EMERG S. 2011;37(6):609-613.

Proliferation of the synovial lining cell layer in suggested metal hypersensitivity.
Burkandt A, Katzer A, Thaler K, Volker V, Friedrich R, Rüther W, Amling M, Zustin J
IN VIVO. 2011;25(4):679-686.

Reconstruction of the sphenoid wing in a case of neurofibromatosis type 1 and complex unilateral orbital dysplasia with pulsating exophthalmos.
Friedrich R, Reinhard E
IN VIVO. 2011;25(2):287-290.

Bilateral intraosseous lymphoepithelial cyst of the mandible.
Friedrich R, Scheuer H, Fuhrmann A, Zustin J
IN VIVO. 2011;25(3):451-454.

Calcifying epithelial odontogenic tumour of the maxilla: a case report with respect to immunohistochemical findings.
Friedrich R, Zustin J
IN VIVO. 2011;25(2):259-264.

Overexpression of TACE and TIMP3 mRNA in head and neck cancer: association with tumour development and progression.
Kornfeld J, Meder S, Wohlberg M, Friedrich R, Rau T, Riethdorf L, Löning T, Pantel K, Riethdorf S
BRIT J CANCER. 2011;104(1):138-145.

Podoplanin and CD34 in peripheral nerve sheath tumours: focus on neurofibromatosis 1-associated atypical neurofibroma.
Naber U, Friedrich R, Glatzel M, Mautner V, Hagel C
J NEURO-ONCOL. 2011;103(2):239-245.

Plexiform neurofibromas in children with neurofibromatosis type 1: frequency and associated clinical deficits.
Nguyen R, Kluwe L, Fuensterer C, Kentsch M, Friedrich R, Mautner V
J PEDIATR-US. 2011;159(4):652-652.

Expression and distribution of tenascin in rat submandibular glands following irradiation
Bartel-Friedrich S, Lautenschläger C, Holzhausen H, Friedrich R
ANTICANCER RES. 2010;30(5):1593-8.

Delay in diagnosis and referral patterns of 646 patients with oral and maxillofacial cancer: a report from a single institution in Hamburg, Germany
Friedrich R
ANTICANCER RES. 2010;30(5):1833-6.

Dermal cylindroma of the scalp (turban tumour) and subjacent calvarian defects
Friedrich R
ANTICANCER RES. 2010;30(5):1793-7.

Maxillofaziale und Orale Neurofibromatose Typ 1: Klinische, radiologische, morphologische und immunhistochemische Untersuchungen als Grundlage der regionalen Tumor- und Wiederherstellungschirurgie
Friedrich R
2010.

Mental neuropathy (numb chin syndrome) leading to diagnosis of metastatic mediastinal cancer
Friedrich R
ANTICANCER RES. 2010;30(5):1819-21.

Distant metastases and malignant cellular neoplasms encountered in the oral and maxillofacial region: analysis of 92 patients treated at a single institution
Friedrich R, Abadi M
ANTICANCER RES. 2010;30(5):1843-8.

Experimentelle Strahlenreaktionen der Schädelbasis und des Halses
Friedrich R, Bartel-Friedrich S
2010.

Expression of neuron-specific enolase in irradiated salivary glands of the rat: a pilot study.
Friedrich R, Davidoff M, Bartel-Friedrich S
ANTICANCER RES. 2010;30(5):1569-1571.

Atypical plexiform neurofibroma in NF1 with high standardised uptake value (SUV) in positron-emission tomography (PET) expressing podoplanin.
Friedrich R, Derlin T, Hagel C
IN VIVO. 2010;24(6):871-876.

Expression of proteases in giant cell lesions of the jaws, tendon sheath and salivary glands.
Friedrich R, Eisenmann J, Röser K, Scheuer H, Löning T
ANTICANCER RES. 2010;30(5):1645-1652.

Small peripheral developing odontoma of the maxilla in a 3-year-old patient depicted on cone-beam tomograms.
Friedrich R, Fuhrmann A, Scheuer H, Zustin J
IN VIVO. 2010;24(6):895-898.

Desmoid-type infantile fibromatosis of the mandible: case report with long-term follow-up.
Friedrich R, Grzyska U, Scheuer H, Zustin J
IN VIVO. 2010;24(6):877-881.

Appendices of the nipple and areola of the breast in Neurofibromatosis type 1 patients are neurofibromas.
Friedrich R, Hagel C
ANTICANCER RES. 2010;30(5):1815-1817.

Insulin-like growth factor-1 receptor (IGF-1R) in primary and metastatic undifferentiated carcinoma of the head and neck: a possible target of immunotherapy.
Friedrich R, Hagel C, Bartel-Friedrich S
ANTICANCER RES. 2010;30(5):1641-1643.

Immunohistochemical study on an epithelial-myoepithelial intercalated duct carcinoma transplanted to the nude mouse.
Friedrich R, Klapdor R, Hagel C, Bartel-Friedrich S
ANTICANCER RES. 2010;30(5):1565-1568.

Vascular endothelial growth factor (VEGF) in sera of oral and oropharyngeal squamous cell carcinoma patients.
Friedrich R, Klapdor R, Hagel C, Bartel-Friedrich S
ANTICANCER RES. 2010;30(5):1765-1766.

Morphometrics of the facial nerve following fractionated external irradiation: an experimental study in rats.
Friedrich R, Lasson K, Laas R, Hagel C, Bartel-Friedrich S
ANTICANCER RES. 2010;30(5):1625-1632.

Basaloid lesions of oral squamous epithelial cells and their association with HPV infection and P16 expression.
Friedrich R, Sperber C, Jäkel T, Röser K, Löning T
ANTICANCER RES. 2010;30(5):1605-1612.

Dysplasia of the orbit and adjacent bone associated with plexiform neurofibroma and ocular disease in 42 NF-1 patients.
Friedrich R, Stelljes C, Hagel C, Giese M, Scheuer H
ANTICANCER RES. 2010;30(5):1751-1764.

Simulation of scattering effects of irradiation on surroundings using the example of titanium dental implants: a Monte Carlo approach.
Friedrich R, Todorovic M, Krüll A
ANTICANCER RES. 2010;30(5):1727-1730.

Ameloblastoma of the maxillary sinus 11 years after extirpation of extensive dentigerous cysts and dystopic wisdom tooth.
Friedrich R, Zustin J
IN VIVO. 2010;24(4):567-570.

Late metastasis of gastrointestinal stromal tumour to the oral cavity.
Friedrich R, Zustin J
ANTICANCER RES. 2010;30(10):4283-4288.

Multiple distant metastases of hepatocellular carcinoma to the oral cavity.
Friedrich R, Zustin J
IN VIVO. 2010;24(2):211-214.

Adenomatoid odontogenic tumour of the mandible
Friedrich R, Zustin J, Scheuer H
ANTICANCER RES. 2010;30(5):1787-92.

Clinical characterisation of 29 neurofibromatosis type-1 patients with molecularly ascertained 1.4 Mb type-1 NF1 deletions.
Mautner V, Kluwe L, Friedrich R, Roehl A, Bammert S, Högel J, Spöri H, Cooper D, Kehrer-Sawatzki H
J MED GENET. 2010;47(9):623-630.

Bevacizumab induces regression of vestibular schwannomas in patients with neurofibromatosis type 2
Mautner V, Nguyen R, Kutta H, Fuensterer C, Bokemeyer C, Hagel C, Friedrich R, Panse J
NEURO-ONCOLOGY. 2010;12(1):14-8.

Hypercementosis and odontogenic epithelial hyperplasia associated with a tooth root remnant mimicking a neoplasm. A case report.
Zustin J, Friedrich R
IN VIVO. 2010;24(4):571-574.

Podoplanin expression in human tooth germ tissues and cystic odontogenic lesions: an immunohistochemical study.
Zustin J, Scheuer H, Friedrich R
J ORAL PATHOL MED. 2010;39(1):115-120.

Long-term follow-up control of pedunculated orbital floor osteoma becoming symptomatic by atypical facial pain.
Friedrich R
IN VIVO. 2009;23(1):117-121.

Die Durchbruchszeiten der permanenten Dentition bei Kindern und Jugendlichen in Latakia (Syrien)
Friedrich R, Habib S, Scheuer H
Arch Kriminol. 2009;223(3-4):84-97.

Adenomatoid odontogenic tumor (AOT) of maxillary sinus: case report with respect to immunohistochemical findings.
Friedrich R, Scheuer H, Zustin J
IN VIVO. 2009;23(1):111-116.

Neurokutane Erkrankungen
PANTELIADIS C, Hagel C, Mautner V, Friedrich R, ROSENBAUM T
2009. Neuropädiatrie - Evidenzbasierte Therapie. Elsevier: 67-87.

Mechanisms of loss of heterozygosity in neurofibromatosis type 1-associated plexiform neurofibromas.
Steinmann K, Kluwe L, Friedrich R, Mautner V, Cooper D, Kehrer-Sawatzki H
J INVEST DERMATOL. 2009;129(3):615-621.

Longitudinal study of neurofibromatosis 1 associated plexiform neurofibromas.
Tucker T, Friedman J, Friedrich R, Wenzel R, Fünsterer C, Mautner V
J MED GENET. 2009;46(2):81-85.

Bone health and fracture rate in individuals with neurofibromatosis 1 (NF1).
Tucker T, Schnabel C, Hartmann M, Friedrich R, Frieling I, Kruse H, Mautner V, Friedman J
J MED GENET. 2009;46(4):259-265.

Reduced thalamic 18F-flurodeoxyglucose retention in adults with neurofibromatosis type 1.
Buchert R, Von Borczyskowski D, Wilke F, Gronowsky M, Friedrich R, Brenner W, Mester J, Clausen M, Mautner V
NUCL MED COMMUN. 2008;29(1):17-26.

Die Durchbruchszeiten der permanenten Dentition bei Kindern und Jugendlichen im Saarland
Friedrich R, Leist A, Scheuer H
Arch Kriminol. 2008;222(3-4):73-104.

Germline and somatic NF1 gene mutations in plexiform neurofibromas.
Upadhyaya M, Spurlock G, Monem B, Thomas N, Friedrich R, Kluwe L, Mautner V
HUM MUTAT. 2008;29(8):103-111.

Expression and distribution of cytokeratins and vimentin in rat larynx and trachea following irradiation
Bartel-Friedrich S, Lautenschläger C, Holzhausen H, Friedrich R
ANTICANCER RES. 2007;27(4A):2059-69.

Diagnosis and treatment of patients with nevoid basal cell carcinoma syndrome [Gorlin-Goltz syndrome (GGS)].
Friedrich R
ANTICANCER RES. 2007;27(4):1783-1787.

Mutagenicity testing of mouthwash brands.
Friedrich R
ANTICANCER RES. 2007;27(4):2091-2098.

Primary and second primary cancer in 649 patients with malignancies of the maxillofacial region.
Friedrich R
ANTICANCER RES. 2007;27(4):1805-1818.

Avascular mandibular osteonecrosis in association with bisphosphonate therapy: a report on four patients.
Friedrich R, Blake F
ANTICANCER RES. 2007;27(4):1841-1845.

Navigation-assisted resection of a primary extraocular melanoma of the orbit.
Friedrich R, Grzyska U, Schäfer H, Li L
ANTICANCER RES. 2007;27(4):1799-1803.

Malignant peripheral nerve sheath tumors (MPNST) in NF1-affected children.
Friedrich R, Hartmann M, Mautner V
ANTICANCER RES. 2007;27(4):1957-1960.

Die Durchbruchszeiten der bleibenden Dentition bei Jungen in Teheran (Iran)
Friedrich R, Kamalwand N, Jürgen S, Scheuer H
Arch Kriminol. 2007;219(5-6):145-168.

Expression of insulin-like growth-factor-1 receptor (IGF-1R) in peripheral nerve sheath tumors in neurofibromatosis type 1.
Friedrich R, Keiner D, Hagel C
ANTICANCER RES. 2007;27(4):2085-2090.

Rapidly progressive and metastatic mucoepidermoid carcinoma: application of serological tumor markers.
Friedrich R, Klapdor R, Bartel-Friedrich S
ANTICANCER RES. 2007;27(4):2099-2100.

Loss of heterozygosity in tumor cells of a recurrent mandibular giant cell granuloma in neurofibromatosis type 1.
Friedrich R, Mautner V, Scheuer H
ANTICANCER RES. 2007;27(4):2079-2083.

Histopathology and clinical outcome of NF1-associated vs. sporadic malignant peripheral nerve sheath tumors.
Hagel C, Zils U, Peiper M, Kluwe L, Gotthard S, Friedrich R, Zurakowski D, von Deimling A, Mautner V
J NEURO-ONCOL. 2007;82(2):187-192.

MMP-13 and p53 in the progression of malignant peripheral nerve sheath tumors.
Holtkamp N, Atallah I, Okuducu A, Mucha J, Hartmann C, Mautner V, Friedrich R, Mawrin C, von Deimling A
NEOPLASIA. 2007;9(8):671-677.

Clinical relevance of positron emission tomography and magnetic resonance imaging in the progression of internal plexiform neurofibroma in NF1.
Mautner V, Brenner W, Fünsterer C, Hagel C, Gawad K, Friedrich R
ANTICANCER RES. 2007;27(4):1819-1822.

Prognostic relevance of FDG PET in patients with neurofibromatosis type-1 and malignant peripheral nerve sheath tumours.
Brenner W, Friedrich R, Gawad K, Hagel C, von Deimling A, de Wit M, Buchert R, Clausen M, Mautner V
EUR J NUCL MED MOL I. 2006;33(4):428-432.

Frakturen des Jochbeins und des zygomatikomaxillären Komplexes
Friedrich R
2006.

Experimentelle Strahlenreaktionen in der Kopf-Hals-Region
Friedrich R, Bartel-Friedrich S
2006.

Die Zahndurchbruchszeiten der bleibenden Dentition bei Jungen und Mädchen in Paderborn, Westfalen
Friedrich R, Katerji H, Wedl J, Scheuer H
Arch Kriminol. 2006;217(1-2):20-35.

Karies, Füllungen und fehlende Zähne auf Panoramaschichtaufnahmen zur Altersschätzung Jugendlicher und junger Erwachsener: prädiktive Werte für die Bestimmung des vollendeten 18. Lebensjahres
Friedrich R, v Maydell L, Ulbricht C, Scheuer H
Arch Kriminol. 2006;216(5-6):129-49.

Zahnersatz, Wurzelkanalfüllungen und Parodontalbefunde zur Altersschätzung Jugendlicher und junger Erwachsener: prädiktive Werte für die Bestimmung des vollendeten 18. Lebensjahres
Friedrich R, v Maydell L, Ulbricht C, Scheuer H
Arch Kriminol. 2006;216(5-6):166-80.

Transcription factor AP-2 is expressed in human Schwann cell-derived tumours.
Harder A, Mautner V, Friedrich R, Harder T, Plagemann A, von Deimling A
HISTOPATHOLOGY. 2006;49(4):441-443.

Mutation and expression of PDGFRA and KIT in malignant peripheral nerve sheath tumors, and its implications for imatinib sensitivity.
Holtkamp N, Okuducu A, Mucha J, Afanasieva A, Hartmann C, Atallah I, Estevez-Schwarz L, Mawrin C, Friedrich R, Mautner V, von Deimling A
CARCINOGENESIS. 2006;27(3):664-671.

Toxicity screening of mouthwashes in the pollen tube growth test: safety assessment of recommended dilutions.
Kristen U, Friedrich R
Braz Dent J. 2006;17(1):58-62.

Vitamin D deficiency associated with number of neurofibromas in neurofibromatosis 1.
Lammert M, Friedman J, Roth H, Friedrich R, Kluwe L, Atkins D, Schooler T, Mautner V
J MED GENET. 2006;43(10):810-813.

Revascularized fibula for tibia replacement in adamantinoma
Li L, Bruns J, Friedrich R, Schmelzle R
EUR J PLAST SURG. 2006.

MRI growth patterns of plexiform neurofibromas in patients with neurofibromatosis type 1.
Mautner V, Hartmann M, Kluwe L, Friedrich R, Fünsterer C
NEURORADIOLOGY. 2006;48(3):160-165.

Hyperfractionated externally irradiated primary oral squamous cell carcinomas: vital tumor cells in resection specimens
Friedrich R
ANTICANCER RES. 2005;25(3A):1707-9.

Untersuchungen zur Todesursache bei einem polytoxikomanen Patienten mit dentoalveolären Schienenverbänden und intermaxillärer Fixation zur Versorgung einer chronisch infizierten Unterkieferfraktur
Friedrich R, Andresen H, Schulz F
Arch Kriminol. 2005;215(1-2):43-9.

Diagnosis, treatment and follow-up control in 124 patients with basal cell carcinoma of the maxillofacial region treated from 1992 to 1997
Friedrich R, Giese M, Li L, Schenk Y, Schmelzle R
ANTICANCER RES. 2005;25(3A):1693-7.

Malignant peripheral nerve sheath tumors (MPNST) in neurofibromatosis type 1 (NF1): diagnostic findings on magnetic resonance images and mutation analysis of the NF1 gene
Friedrich R, Kluwe L, Fünsterer C, Mautner V
ANTICANCER RES. 2005;25(3A):1699-702.

Pleomorphic adenoma of the salivary glands: analysis of 94 patients
Friedrich R, Li L, Knop J, Giese M, Schmelzle R
ANTICANCER RES. 2005;25(3A):1703-5.

Zuordnung einer Bissmarke an der Haut des Opfers zum Gebiss des Täters durch Nachweis von Anomalien der Stellung und Zahl der Frontzähne
Friedrich R, Scheuer H, Schulz F
Arch Kriminol. 2005;215(1-2):11-7.

Resection of small plexiform neurofibromas in neurofibromatosis type 1 children
Friedrich R, Schmelzle R, Hartmann M, Fünsterer C, Mautner V
WORLD J SURG ONCOL. 2005;3(1):6.

Subtotal and total resection of superficial plexiform neurofibromas of face and neck: four case reports
Friedrich R, Schmelzle R, Hartmann M, Mautner V
J CRANIO MAXILL SURG. 2005;33(1):55-60.

Unterkieferfraktur durch Messerstich
Friedrich R, Schulz F
Arch Kriminol. 2005;215(1-2):27-33.

Pneumatisationen des Jochbogens ("Zygomatic Air Cell Defect") auf Panoramaschichtaufnahmen--ein Hilfsmittel zur Identitätsbestimmung und Altersschätzung
Friedrich R, Schulz F, Scheuer H
Arch Kriminol. 2005;215(5-6):151-7.

Der Einfluss der Topographie des Weisheitszahns auf die Chronologie der Wurzelentwicklung-- Konsequenzen für die forensisch-odontologische Altersschätzung von Jugendlichen und jungen Erwachsenen
Friedrich R, Ulbricht C, von Maydell L, Scheuer H
Arch Kriminol. 2005;216(1-2):15-35.

Entwicklungsstadien der Weisheitszähne zur Altersschätzung Jugendlicher und junger Erwachsener: prädiktive Werte für die Bestimmung eines chronologischen Alters von 18 Jahren. Radiologische Untersuchungen an Panoramaschichtaufnahmen von Jugendlichen und jungen Erwachsenen
Friedrich R, Ulbricht C, von Maydell L, Scheuer H
Arch Kriminol. 2005;216(3-4):73-88.

Toxicity screening of mouthwashes in the pollen tube growth test: safety assessment of recommended dilutions of twenty brands
Kristen U, Friedrich R
IN VIVO. 2005;18(6):803-7.

Eruption times of permanent teeth in children and young adolescents in Athens (Greece)
Wedl J, Danias S, Schmelzle R, Friedrich R
CLIN ORAL INVEST. 2005;9(2):131-4.

Die Abstandsmessung der Weisheitszähne zur Okklusionsebene als forensischodontologisches Hilfsmittel zur Bestimmung des chronologischen Alters
Wedl J, Friedrich R
Arch Kriminol. 2005;215(3-4):77-84.

Die Durchbruchszeiten der bleibenden Zähne bei Jungen und Mädchen im Landkreis Stormarn, Schleswig-Holstein (Deutschland)
Wedl J, Schmelzle R, Friedrich R
ANTHROPOL ANZ. 2005;63(2):189-97.

Investigation about origin and spreading of neoendothelium in autologous arterial vessel replacement
Bartnick A, Friedrich R, Schmelzle R
IN VIVO. 2004;17(6):619-24.

Immunohistochemical long-term evaluation of laminin expression in microvascular anastomoses of the carotid artery in the Wistar rat
Bartnick A, Roeser K, Friedrich R
J CRANIO MAXILL SURG. 2004;32(4):247-50.

Sulindac derivatives inhibit cell growth and induce apoptosis in primary cells from malignant peripheral nerve sheath tumors of NF1-patients
Frahm S, Kurtz A, Kluwe L, Farassati F, Friedrich R, Mautner V
CANCER CELL INT. 2004;4(1):4.

Genetic and phenotypic characterization of tumor cells derived from malignant peripheral nerve sheath tumors of neurofibromatosis type 1 patients
Frahm S, Mautner V, Brems H, Legius E, Debiec-Rychter M, Friedrich R, Knöfel W, Peiper M, Kluwe L
NEUROBIOL DIS. 2004;16(1):85-91.

DNA-flow cytometry, DNA-image cytometry and proliferation index (MIB-5) in irradiated rat salivary glands and salivary gland tumors
Friedrich R, Hieke N, Stern C, Lautenschläger C, Holzhausen H, Caselitz J, Bartel-Friedrich S
IN VIVO. 2004;18(2):213-22.

Expression of multi-drug resistance genes (mdr1, mrp1, bcrp) in primary oral squamous cell carcinoma
Friedrich R, Punke C, Reymann A
IN VIVO. 2004;18(2):133-47.

Entwicklung eines Trainingsmodells zur sonographischen Primärdiagnostik von Mittelgesichtsfrakturen
Heiland M, Lenard M, Schmelzle R, Friedrich R
Mund Kiefer Gesichtschir. 2004;8(4):244-9.

Differentially expressed genes in neurofibromatosis 1-associated neurofibromas and malignant peripheral nerve sheath tumors
Holtkamp N, Mautner V, Friedrich R, Harder A, Hartmann C, Theallier-Janko A, Hoffmann K, von Deimling A
ACTA NEUROPATHOL. 2004;107(2):159-68.

Subclassification of nerve sheath tumors by gene expression profiling
Holtkamp N, Reuss D, Atallah I, Kuban R, Hartmann C, Mautner V, Frahm S, Friedrich R, Algermissen B, Pham V, Prietz S, Rosenbaum T, Estevez-Schwarz L, von Deimling A
BRAIN PATHOL. 2004;14(3):258-64.

Screening 500 unselected neurofibromatosis 1 patients for deletions of the NF1 gene
Kluwe L, Siebert R, Gesk S, Friedrich R, Tinschert S, Kehrer-Sawatzki H, Mautner V
HUM MUTAT. 2004;23(2):111-6.

Somatic mitochondrial DNA mutations in neurofibromatosis type 1-associated tumors
Kurtz A, Lueth M, Kluwe L, Zhang T, Foster R, Mautner V, Hartmann M, Tan D, Martuza R, Friedrich R, Driever P, Wong L
MOL CANCER RES. 2004;2(8):433-41.

Mandibular augmentation with vascularized fibula transplantation in a patient with systemic lupus erythematosus
Li L, Friedrich R, Schmelzle R
J ORAL MAXIL SURG. 2004;62(4):497-9.

Verkalkender epithelialer odontogener Tumor des Oberkiefers (Pindborg-Tumor)
Li L, Jäkel K, Friedrich R
Mund Kiefer Gesichtschir. 2004;8(1):46-50.

Circulating growth factor levels are associated with tumorigenesis in neurofibromatosis type 1
Mashour G, Driever P, Hartmann M, Drissel S, Zhang T, Scharf B, Felderhoff-Müser U, Sakuma S, Friedrich R, Martuza R, Mautner V, Kurtz A
CLIN CANCER RES. 2004;10(17):5677-83.

Eruption times of permanent teeth in teenage boys and girls in Izmir (Turkey)
Wedl J, Schoder V, Blake F, Schmelzle R, Friedrich R
J Clin Forensic Med. 2004;11(6):299-302.

Durchbruchszeiten der bleibenden Zähne bei Jungen und Mädchen in Niedersachsen
Wedl J, Schoder V, Friedrich R
Arch Kriminol. 2004;213(3-4):84-91.

Expression and distribution of basement membrane proteins in rat larynx and trachea following irradiation
Bartel-Friedrich S, Friedrich R, Lautenschläger C, Holzhausen H, Röser K
ANTICANCER RES. 2003;23(2A):877-84.

Oral Langerhans cell histiocytosis: antigen-Ki-67 as a indicator for local tumor behaviour
Bartnick A, Friedrich R, Roeser K, Schmelzle R
ANTICANCER RES. 2003;23(2A):921-6.

Kieferhöhlenbeteiligungen im Rahmen der Langers-Zell-Histiozytose
Bartnick A, Friedrich R, Röser K, Schmelzle R
Mund Kiefer Gesichtschir. 2003;7(1):36-41.

Epstein-Barr virus DNA and epithelial markers in nasopharyngeal carcinoma
Friedrich R, Bartel-Friedrich S, Lobeck H, Niedobitek G, Arps H
MED MICROBIOL IMMUN. 2003;192(3):141-4.

The expression pattern of collagen I in irradiated mandibular salivary glands of rats
Friedrich R, Bartel-Friedrich S, Röser K, Lautenschläger C
ANTICANCER RES. 2003;23(2A):927-30.

Adenoid cystic carcinoma of salivary and lacrimal gland origin: localization, classification, clinical pathological correlation, treatment results and long-term follow-up control in 84 patients
Friedrich R, Bleckmann V
ANTICANCER RES. 2003;23(2A):931-40.

Jaw malformations plus displacement and numerical aberrations of teeth in neurofibromatosis type 1: a descriptive analysis of 48 patients based on panoramic radiographs and oral findings
Friedrich R, Giese M, Schmelzle R, Mautner V, Scheuer H
J CRANIO MAXILL SURG. 2003;31(1):1-9.

Ki-67 proliferation-index (MIB-1) of neurofibromas in neurofibromatosis type 1 patients
Friedrich R, Hagel C, Brehme Z, Kluwe L, Mautner V
ANTICANCER RES. 2003;23(2A):953-5.

Potentials of ultrasound in the diagnosis of midfacial fractures*
Friedrich R, Heiland M, Bartel-Friedrich S
CLIN ORAL INVEST. 2003;7(4):226-9.

Reconstruction of Sphenoid Wing Dysplasia with Pulsating Exophthalmos in a Case of Neurofibromatosis Type 1 Supported by Intraoperative Navigation Using a New Skull Reference System
Friedrich R, Heiland M, Kehler U, Schmelzle R
SKULL BASE-INTERD AP. 2003;13(4):211-217.

Growth type of plexiform neurofibromas in NF1 determined on magnetic resonance images
Friedrich R, Korf B, Fünsterer C, Mautner V
ANTICANCER RES. 2003;23(2A):949-52.

Toxicity assessment of mouthwashes in the pollen tube growth test
Friedrich R, Kristen U
ANTICANCER RES. 2003;23(2A):941-7.

The influence of wisdom tooth impaction on root formation
Friedrich R, Ulbricht C, Ljuba A Baronesse von Maydell [
ANN ANAT. 2003;185(5):481-92.

Karies und Füllungen an Weisheitszähnen als forensisch-odontologisches Hilfsmittel der Bestimmung eines chronologischen Alters über 18 Jahren. Radiologische Untersuchungen an Panoramaschichtaufnahmen von Kindern und Jugendlichen
Friedrich R, Ulbricht C, von Maydell L
Arch Kriminol. 2003;212(3-4):74-82.

Constitutional NF1 mutations in neurofibromatosis 1 patients with malignant peripheral nerve sheath tumors
Kluwe L, Friedrich R, Peiper M, Friedman J, Mautner V
HUM MUTAT. 2003;22(5):420.

Molecular study of frequency of mosaicism in neurofibromatosis 2 patients with bilateral vestibular schwannomas
Kluwe L, Mautner V, Heinrich B, Dezube R, Jacoby L, Friedrich R, MacCollin M
J MED GENET. 2003;40(2):109-14.

Von Recklinghausen Gesellschaft: the German lay organization for patients with neurofibromatosis
Mautner V, Friedrich R
ANTICANCER RES. 2003;23(2A):1163-4.

Malignant peripheral nerve sheath tumours in neurofibromatosis type 1: MRI supports the diagnosis of malignant plexiform neurofibroma
Mautner V, Friedrich R, von Deimling A, Hagel C, Korf B, Knöfel M, Wenzel R, Fünsterer C
NEURORADIOLOGY. 2003;45(9):618-25.

Oral Langerhans cell histiocytosis
Bartnick A, Friedrich R, Roeser K, Schmelzle R
J CRANIO MAXILL SURG. 2002;30(2):91-6.

Experimentelle und histomorphologische Untersuchungen zu Heilungsvorgängen an Anastomosen der A. carotis am Tiermodell der Wistar-Ratte mit immunhistochemischer Darstellung von Kollagen IV
Bartnick A, Friedrich R, Röser K, Schmelzle R
Mund Kiefer Gesichtschir. 2002;6(1):19-26.

The effect of external fractionated irradiation on the distribution pattern of extracellular matrix proteins in submandibular salivary glands of the rat
Friedrich R, Bartel-Friedrich S, Holzhausen H, Lautenschläger C
J CRANIO MAXILL SURG. 2002;30(4):246-54.

Fehlbildungen der Kieferhöhle bei Neurofibromatose Typ 1
Friedrich R, Giese M, Mautner V, Schmelzle R, Scheuer H
Mund Kiefer Gesichtschir. 2002;6(5):363-7.

NF1 mutations in neurofibromatosis 1 patients with plexiform neurofibromas
Kluwe L, Friedrich R, Korf B, Fahsold R, Mautner V
HUM MUTAT. 2002;19(3):309.

Presymptomatic diagnosis for children of sporadic neurofibromatosis 2 patients: a method based on tumor analysis
Kluwe L, Friedrich R, Tatagiba M, Mautner V
GENET MED. 2002;4(1):27-30.

Biochirurgische Wundkonditionierung mittels Madentherapie und Vakuumverbanden nach Teilnekrose eines Haut-Muskel-Transplantats im bestrahlten Kopf-Hals-Bereich
Wedl J, Siegert J, Hofmann T, Friedrich R
Mund Kiefer Gesichtschir. 2002;6(6):437-41.

Cytokeratin expression in carcinomas of irradiated rats
Bartel-Friedrich S, Friedrich R, Arps H, Holzhausen H
ANTICANCER RES. 2001;20(6D):5171-7.

Distribution of collagens in carcinomas of salivary and mammary gland origin in irradiated rats
Bartel-Friedrich S, Friedrich R, Arps H, Holzhausen H
ANTICANCER RES. 2001;20(6D):5007-14.

Expression of cytokeratins and additional markers in undifferentiated lymph node metastases of the neck
Bartel-Friedrich S, Friedrich R, Holzhausen H
ANTICANCER RES. 2001;20(6D):4931-40.

Dose-response relationships and the effect of age and latency period on the expression profile of laminin in irradiated rat mandibular glands
Bartel-Friedrich S, Friedrich R, Lautenschläger C, Holzhausen H
ANTICANCER RES. 2001;20(6D):5221-8.

Dose-response relationships on the expression profile of cytokeratins and vimentin in rat submandibular glands following fractionated irradiation
Bartel-Friedrich S, Friedrich R, Lautenschläger C, Holzhausen H, Moll R
ANTICANCER RES. 2001;20(6D):4917-26.

Immunhistochemischer Nachweis von Hormonen in Hypophysenadenomen der Ratte nach fraktionierter Bestrahlung
Bartel-Friedrich S, Saeger W, Friedrich R, Laas R
LARYNGO RHINO OTOL. 2001;80(5):257-62.

Epstein-Barr virus DNA, intermediate filaments and epithelial membrane antigen in nasopharyngeal carcinoma
Friedrich R, Bartel-Friedrich S, Lobeck H, Niedobitek G, Arps H
ANTICANCER RES. 2001;20(6D):4909-16.

Limitations of B-scan ultrasound for diagnosing fractures of the mandibular condyle and ramus
Friedrich R, Plambeck K, Bartel-Friedrich S, Giese M, Schmelzle R
CLIN ORAL INVEST. 2001;5(1):11-6.

Hormone production in pituitary adenomas following external irradiation: an experimental study in rats
Friedrich R, Saeger W, Laas R, Friedrich S
ANTICANCER RES. 2001;20(6D):5165-70.

Recurrent ameloblastic fibro-odontoma in a 10-year-old boy
Friedrich R, Siegert J, Donath K, Jäkel K
J ORAL MAXIL SURG. 2001;59(11):1362-6.

p53-Mutationsnachweis in Abstrichen der Mundschleimhaut von Patienten mit oralem Plattenepithelkarzinom
Giese M, Friedrich R, Riethdorf S, Löning T
Mund Kiefer Gesichtschir. 2001;5(1):37-43.

Pneumatisation des Jochbogens auf Panoramaschichtaufnahmen
Hofmann T, Friedrich R, Wedl J, Schmelzle R
Mund Kiefer Gesichtschir. 2001;5(3):173-9.

Metachronous bilateral metastases of renal cell carcinoma to the parotid region
Li L, Friedrich R, Schmelzle R, Donath K
J ORAL MAXIL SURG. 2001;59(4):434-8.

Akute Kiefergelenkarthritis nach Lyme-Borreliose
Vesper M, Röder K, Siegert J, Friedrich R, Schmelzle R
Mund Kiefer Gesichtschir. 2001;5(4):258-60.

Experimentelle Mikrochirurgie an vorgeschädigten Arterien
Friedrich R
2000.

Dosis-Wirkungs-Beziehungen des Kollagen-IV-Expressionsmusters der bestrahlten Unterkieferspeicheldrüse der Ratte
Friedrich R, Bartel-Friedrich S, Lautenschläger C, Holzhausen H, Moll R
Mund Kiefer Gesichtschir. 2000;4(2):125-30.

The presence of collagen III and IV in experimental microsurgical anastomoses of arteries
Friedrich R, Bartel-Friedrich S, Plambeck K
J ORAL MAXIL SURG. 2000;58(10):1125-8.

Epithelial-myoepithelial carcinoma of the parotid gland with multiple distant metastases: a case report
Friedrich R, Donath K
J ORAL MAXIL SURG. 2000;58(6):690-4.

Mutations and allelic loss of the NF2 gene in neurofibromatosis 2-associated skin tumors
Kluwe L, Friedrich R, Hagel C, Lindenau M, Mautner V
J INVEST DERMATOL. 2000;114(5):1017-21.

Rat tumors following fractionated irradiation
Bartel-Friedrich S, Friedrich R, Arps H
ANTICANCER RES. 1999;19(4A):2725-6.

Immunhistochemischer Nachweis von extrazellulären Matrixproteinen in der bestrahlten Unterkieferspeicheldrüse der Ratte
Bartel-Friedrich S, Friedrich R, Lautenschläger C, Moll R
LARYNGO RHINO OTOL. 1999;78(9):500-7.

Immunohistochemical detection of extracellular matrix proteins in the irradiated rat mandibular gland
Bartel-Friedrich S, Friedrich R, Moll R, Lautenschlager C
ANTICANCER RES. 1999;19(4A):2779-84.

Immunhistochemischer Nachweis von Zytokeratinen in der bestrahlten Unterkieferspeicheldrüse der Wistar-Ratte
Bartel-Friedrich S, Friedrich R, Moll R, Lautenschläger C
LARYNGO RHINO OTOL. 1999;78(6):326-31.

Immunohistochemical detection of cytokeratins in the irradiated rat mandibular gland
Bartel-Friedrich S, Friedrich R, Moll R, Lautenschläger C
ANTICANCER RES. 1999;19(4A):2405-9.

In vitro toxicity assessment of mouthwashes in the pollen tube growth test: first results
Friedrich R, Kristen U
ANTICANCER RES. 1999;19(4A):2775-7.

Distraction osteogenesis of a fibula free flap used for mandibular reconstruction: preliminary report Sergio Siciliano, Benoît Lengeré, Henré Reychler
Friedrich R, Schmelzle R
J CRANIO MAXILL SURG. 1999;27(6):398.

Allelic loss of the NF1 gene in NF1-associated plexiform neurofibromas
Kluwe L, Friedrich R, Mautner V
CANCER GENET-NY. 1999;113(1):65-9.

Quantitative analysis of NF1 and OMGP gene transcripts in sporadic gliomas, sporadic meningiomas and neurofibromatosis type 1-associated plexiform neurofibromas
Peters N, Waha A, Wellenreuther R, Friedrich R, Mautner V, Hoffmeyer S, Lenartz D, Schramm J, Wiestler O, von Deimling A
ACTA NEUROPATHOL. 1999;97(6):547-51.

TNM staging, histopathological grading, and tumor-associated antigens in patients with a history of mucoepidermoid carcinoma of the salivary glands
Plambeck K, Friedrich R, Bahlo M, Bartel-Friedrich S, Klapdor R
ANTICANCER RES. 1999;19(4A):2397-404.

Patency of experimental microvascular autografts of the common carotid artery after balloon dilatation in rats: a technical note and preliminary results
Friedrich R
BRIT J ORAL MAX SURG. 1998;36(5):365-70.

Nachweis von extrazellulärem Matrixprotein (Laminin) in experimentellen arteriellen Anastomosen
Friedrich R, Bartel-Friedrich S, Plambeck K, Schmelzle R
Mund Kiefer Gesichtschir. 1998;2(3):118-21.

Tumorreduktion plexiformer Neurofibrome im kraniofazialen und Halsbereich
Friedrich R, Gehrke G, Giese M, Mautner V, Schmelzle R
Mund Kiefer Gesichtschir. 1998;2 Suppl 1:S86-90.

p53-Mutationen und HPV-Infektionen in Plattenepithelkarzinomen der Kopf-Hals-Region. Langzeitverlaufsstudie
Riethdorf S, Friedrich R, Sühwold J, Ostwald C, Barten M, Gogacz P, Gundlach K, Schlechte H, Becker J, Bregenzer T, Riethdorf L, Löning T
Mund Kiefer Gesichtschir. 1998;2(1):30-4.

Isolation and characterization of Schwann cells from neurofibromatosis type 2 patients
Rosenbaum C, Kluwe L, Mautner V, Friedrich R, Müller H, Hanemann C
NEUROBIOL DIS. 1998;5(1):55-64.

Cytokeratin profiles in neck cystic lymph node metastases of tonsillary origin
Friedrich R, Bartel-Friedrich S, Plambeck K
ANTICANCER RES. 1997;17(4B):3113-6.

P53 auto-antibodies in the sera of patients with oral squamous cell carcinoma
Friedrich R, Bartel-Friedrich S, Plambeck K, Bahlo M, Klapdor R
ANTICANCER RES. 1997;17(4B):3183-4.

Application of B-scan ultrasonography for analysis of callus distraction in vascularized fibular grafts of the mandible: a report of three patients
Friedrich R, Hellner D, Plambeck K, Schmelzle R
J ORAL MAXIL SURG. 1997;55(6):635-40.

Sonographie der Segmentdistraktion und Kallusbildung des rekonstruierten Unterkiefers. Stellenwert der chirurgischen Sonographie der Kallusdistraktion vaskularisierter Beckenkammtransplantate und Underkiefersegmente in einer perkutan strahlenvorbelasteten Region
Friedrich R, Hellner D, Plambeck K, Schmelzle R
ULTRASCHALL MED. 1997;18(4):177-81.

Salvagebehandlung fortgeschrittener Plattenepithel-karzinome der Mundhöhle und des Oropharynx. Ergebnisse der interstitiellen HDR-Brachytherapie in Kombination mit ablativer Tumorchirurgie
Friedrich R, Krüll A, Schwarz R, Thurmann H, Plambeck K, Schmelzle R
STRAHLENTHER ONKOL. 1997;173(10):507-12.

Einsatz von Autointerponaten nach akuter Schädigung der Arteria carotis communis. Experimentelle mikrovaskuläre Anastomosen nach Ballondilatation
Friedrich R, Plambeck K, Bartel-Friedrich S, Hellner D, Schmelzle R
Unfallchirurgie. 1997;23(1):1-9.

Verkäsend-tuberkuloide Nekrosen in Halslymphknoten. Sonographie nach Radiochemotherapie eines undifferenzierten Nasopharynxkarzinoms
Friedrich R, Schmelzle R
ULTRASCHALL MED. 1996;17(5):253-6.

Mucoepidermoid carcinoma of the salivary glands, Clinical data and follow-up of 52 cases
Plambeck K, Friedrich R, Hellner D, Donath K, Schmelzle R
J CANCER RES CLIN. 1996;122(3):177-80.

Mucoepidermoid carcinoma of salivary gland origin: classification, clinical-pathological correlation, treatment results and long-term follow-up in 55 patients
Plambeck K, Friedrich R, Schmelzle R
J CRANIO MAXILL SURG. 1996;24(3):133-9.

Diagnose und Repositionskontrolle von Jochbogenfrakturen
Friedrich R, Volkenstein R
ULTRASCHALL MED. 1994;15(4):213-6.

Wertigkeit der Sonographie für die Diagnose von Jochbogenfrakturen
Friedrich R, Volkenstein R
Dtsch Z Mund Kiefer Gesichtschir. 1991;15(6):472-9.

Letzte Aktualisierung aus dem FIS: 02.11.2024 - 23:44 Uhr