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Differences in third molar development and angulation in class II subdivision malocclusions
Ezgi Sunal Akturk1, Elif Dilara Seker2, Sena Akman3
1Faculty of Dentistry, Department of Orthodontics, Bezmialem Vakif University, Istanbul, Turkey. sunalezgi@gmail.com.
Summary
Class II subdivision malocclusion affects third molar angulation, particularly in the mandible. Orthodontic treatment planning should consider these developmental differences for optimal outcomes.
Area of Science:
- Dentistry
- Orthodontics
- Dental Development
Background:
- Class II subdivision malocclusion presents unique dental characteristics.
- Understanding third molar development is crucial for orthodontic treatment planning.
Purpose of the Study:
- To compare third molar developmental stages and angulations between Class II and Class I sides in Class II subdivision malocclusions.
- To evaluate potential asymmetries in third molar development within this malocclusion type.
Main Methods:
- Retrospective analysis of panoramic X-rays from 38 patients with Class II subdivision malocclusions and 42 controls.
- Third molar development assessed using the Demirjian method.
- Angulations of third molars measured relative to second molars and horizontal reference planes.
Main Results:
- No significant differences in third molar developmental stages were found between sides in Class II subdivision malocclusions.
- Mandibular third molar angulation was significantly greater on the Class II side.
- Maxillary third molar angulation differed between sides in both subgroups.
Conclusions:
- Class II subdivision malocclusion can lead to asymmetries in third molar angulation.
- Orthodontic treatment strategies should account for these observed third molar differences.
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