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[Does dental class II division 2 predispose to temporomandibular disorders?]
Shireen Zuaiter1, Olivier Robin, Sarah Gebeile-Chauty
1Unité fonctionnelle Algies et dysfonctions de l'appareil manducateur, Service d'Odontologie, CHU de Lyon, 6-8 place Depéret, 69007 Lyon, France.
L' Orthodontie Francaise
|September 3, 2013
Summary
Class II division 2 malocclusion does not appear to be a significant risk factor for Temporomandibular disorders (TMD). However, mandibular retrognathism may be linked to a higher risk of temporomandibular joint disk displacement.
Area of Science:
- Dentistry
- Orthodontics
- Temporomandibular Joint Disorders
Background:
- Class II division 2 malocclusion is characterized by specific anatomical and physiological features.
- This malocclusion has been considered a potential risk factor for Temporomandibular disorders (TMD).
Purpose of the Study:
- To clarify the relationship between Class II division 2 malocclusion and TMD.
- To review existing literature on the topic up to 2010.
Main Methods:
- A literature review was performed using Medline and Elsevier Masson databases.
- Articles published up to 2010 were analyzed, focusing on Class II division 2, its individual characteristics, and orthodontic treatment.
Main Results:
- The review identified 50 relevant articles.
- Class II division 2 malocclusion itself did not emerge as a significant risk factor for TMD.
- Mandibular retrognathism showed a potential association with an increased risk of temporomandibular joint disk displacement.
Conclusions:
- Current evidence suggests Class II division 2 malocclusion is not a major risk factor for TMD.
- Mandibular retrognathism may be more relevant to TMD risk, specifically disk displacement.
- Limited research, methodological variability, and conflicting results hinder definitive conclusions and treatment guidelines for Class II division 2 patients with TMD.
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