Johannes Kleinheinz

University Hospital Münster

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Susanne Jung

University of Tübingen

Marcel Hanisch

University Hospital Münster

U. Joos

University of Duisburg-Essen

Lauren Bohner

University Hospital Münster

Kai Wermker

Klinikum Osnabrück

Ulrich Meyer

Friedrich-Loeffler-Institut

Dieter Dirksen

University of Münster

André Büchter

University of Münster

Sonja Sielker

University Hospital Münster

Thomas Stamm

University of Münster

Cooperative Institutions

University Hospital Münster

134

University of Münster

129

Klinik und Poliklinik für Mund-, Kiefer- und Gesichtschirurgie

Klinik für Schlafmedizin

Universität Hamburg

University Medical Center Hamburg-Eppendorf

Klinik und Poliklinik für Mund-, Kiefer- und Plastische Gesichtschirurgie

Poliklinik für Zahnärztliche Prothetik

Universidade de São Paulo

Heidelberg University

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Magnetic resonance imaging artifacts produced by dental implants with different geometries

Dentomaxillofacial Radiology (2020)

Lauren Bohner Norbert Meier Felix Gremse Pedro Tortamano Johannes Kleinheinz

The purpose of this study was to evaluate the MRI-artifact pattern produced by titanium and zirconia dental implants with different geometries (diameter and height).Three titanium (Titan SLA, Straumann) and three zirconia (Pure Ceramic Implant, Straumann) dental implants differing on their design (diameter x height) were installed in porcine bone samples. Samples were scanned with a MRI (3T, T1W turbo spin echo sequence, TR/TE 25/3.5ms, voxel size 0.22×0.22×0.50 mm, scan time 11:18). Micro-CT was used as control group (80kV, 125mA, voxel size 16µm). Artifacts' distribution was measured at vestibular and lingual sites, mesial and distal sites, and at the apex. Statistical analysis was performed with Within-ANOVA (p=0.05).Artifacts distribution measured 2.57 ± 1.09 mm for titanium artifacts and 0.37 ± 0.20 mm for zirconia artifacts (p<0.05). Neither the measured sites (p=0.73) nor the implant geometries (p=0.43) influenced the appearance of artifacts.Artifacts were higher for titanium than zirconia implants. The artifacts pattern was similar for different dental implant geometries.

Artifact (error)

10.1259/dmfr.20200121

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Citations (15)

[Rare diseases in dentistry and oral medicine : Report on the 2017 first national congress].

Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz (2018)

Marcel Hanisch Susanne Jung Johannes Kleinheinz

Oral medicine

Action plan

Source

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Citations (1)

[Aggressive fibromatosis in the jaw and facial region with bone involvement. A review].

PubMed (2005)

László Seper P. Höppe Birgit Kruse‐Lösler André Büchter U. Joos

Medical literature

10.1007/s10006-005-0639-z

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Citations (1)

2019-nCoV: Measures Adopted at the Departments of Oral Surgery and Radiology during the Period of an Uncontrolled Transmission Increase

Dentistry Journal (2020)

Lauren Bohner Melanie Maus Johannes Kleinheinz Marcel Hanisch

A new mutation of 2019-nCoV emerged and has been spreading worldwide. Dental practices are an important person-to-person transmission route. In this regard, preventive measures are required to avoid the cross contamination among professionals and patients. This report brings recommended measures for dental assistance during the pandemic phase. The clinical protocol applied at the Department of Oral Maxillofacial and Surgery, such as at the Department of Radiology, Hospital University Münster, is described. A management protocol was applied to prevent the transmission route of 2019-nCoV. Patients infected with 2019-nCoV are treated only in emergency situations. The use of protective equipment and dental office isolation were the major points to avoid the contact between infected and non-infected patients. Preventive measures should be taken in order to reduce the spread of 2019-nCoV infection.

Isolation

Pandemic

2019-20 coronavirus outbreak

Oral surgery

10.3390/dj8020057

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Citations (4)

Oral Symptoms and Oral Health-Related Quality of Life in People with Rare Diseases in Germany: A Cross-Sectional Study

International Journal of Environmental Research and Public Health (2018)

Sabrina Wiemann Nicolas Frenzel Baudisch Rainer A. Jordan Johannes Kleinheinz Marcel Hanisch

Background: The aim of this study was to collect information on oral health-related quality of life (OHRQoL) in people with rare diseases. Methods: A questionnaire comprising free text questions and the German version of the standardized Oral Health Impact Profile-14 (OHIP-14) questionnaire on OHRQoL was developed. All participants who indicated oral symptoms in the questionnaire were included in a cluster analysis. Different cluster analyses were performed (Ward’s, k-Means) to find symptom profile groups in the data. Results: A total of 484 questionnaires with 96 rare diseases were included in the study. The most reported symptoms were anomalies of the tooth formation, dysgnathia, changes in number of the teeth, and malocclusions. The OHIP mean values of the five resulting symptom clusters ranged from 15.1 to 19.9, which is very high compared to the general population in Germany, which has a mean value of 4.09. Discussion: All investigated symptoms show a negative association with OHRQoL, but the strongest were for symptoms of the oral mucosa and periodontal diseases. All the symptoms described in this cluster analysis can lead to considerably higher mean values of the OHIP total score among people with rare disease and thus to worse OHRQoL than reported in the general population.

Cross-sectional study

German population

10.3390/ijerph15071493

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Citations (21)

Schnittführung in der Implantologie

wissen kompakt (2014)

Johannes Kleinheinz

10.1007/s11838-014-0218-y

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Citations (3)

Controversial Aspects of Diagnostics and Therapy of Arthritis of the Temporomandibular Joint in Rheumatoid and Juvenile Idiopathic Arthritis—An Analysis of Evidence- and Consensus-Based Recommendations Based on an Interdisciplinary Guideline Project

Journal of Clinical Medicine (2022)

Christopher J. Schmidt Rudolf H. Reich Bernd Koos Taila Ertel M. Oliver Ahlers

Introduction: Due to potentially severe sequelae (impaired growth, condylar resorption, and ankylosis) early diagnosis of chronic rheumatic arthritis of the temporomandibular joint (TMJ) and timely onset of therapy are essential. Aim: Owing to very limited evidence the aim of the study was to identify and discuss controversial topics in the guideline development to promote further focused research. Methods: Through a systematic literature search, 394 out of 3771 publications were included in a German interdisciplinary guideline draft. Two workgroups (1: oral and maxillofacial surgery, 2: interdisciplinary) voted on 77 recommendations/statements, in 2 independent anonymized and blinded consensus phases (Delphi process). Results: The voting results were relatively homogenous, except for a greater proportion of abstentions amongst the interdisciplinary group (p < 0.001). Eighty-four percent of recommendations/statements were approved in the first round, 89% with strong consensus. Fourteen recommendations/statements (18.2%) required a prolonged consensus phase and further discussion. Discussion: Contrast-enhanced MRI was confirmed as the method of choice for the diagnosis of TMJ arthritis. Intraarticular corticosteroid injection is to be limited to therapy-refractory cases and single injection only. In adults, alloplastic joint replacement is preferable to autologous replacement. In children/adolescents, autologous reconstruction may be performed lacking viable alternatives. Alloplastic options are currently still considered experimental.

Guideline

Delphi Method

10.3390/jcm11071761

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Citations (6)

RE: Oral Leukoplakia and Risk of Progression to Oral Cancer: A Population-Based Cohort Study

JNCI Journal of the National Cancer Institute (2020)

Burkhard Brandt Natalia Bednarz‐Knoll Johannes Kleinheinz André Franke Thomas Fillies

Oral leukoplakia

10.1093/jnci/djaa074

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Citations (2)

Infraorbital cutaneous angiosarcoma: a diagnostic and therapeutic dilemma

Head & Face Medicine (2008)

Tobias Ettl Johannes Kleinheinz Ravi Mehrotra Stephan Schwarz Torsten E. Reichert

Abstract Background A cutaneous angiosarcoma is a rare malignant tumour of vascular endothelial cells with aggressive clinical behaviour and poor prognosis. Diagnosis is often delayed due to its variable and often benign clinical appearance. Case presentation This case presents a 64-year-old man with a six-month-history of a recurrent diffuse and erythematous painless swelling below the left eye. Several resections with intraoperatively negative resection margins followed, but positive margins were repeatedly detected later on permanent sections. Histopathologic examination of the specimen diagnosed a cutaneous angiosarcoma. Neither, finally achieved negative margins on permanent sections, nor a following chemotherapy could prevent the recurrence of the disease after five months and the patient's dead 21 months after the first diagnosis. Conclusion The case elucidates the current diagnostic and therapeutic dilemma of this entity, which shows an unfavourable clinical course in spite of multimodal therapy.

Presentation (obstetrics)

Rare disease

Histopathological examination

10.1186/1746-160x-4-18

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Citations (17)

Development of a database to record orofacial manifestations in patients with rare diseases: a status report from the ROMSE (recording of orofacial manifestations in people with rare diseases) database

British Journal of Oral and Maxillofacial Surgery (2017)

Marcel Hanisch Lale Hanisch Korbinian Benz Johannes Kleinheinz Joachim Jackowski

Signs and symptoms

10.1016/j.bjoms.2017.02.003

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Citations (13)