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Prevalence of condylar morphological changes in individuals with class II malocclusion
Daniela Fernandes Lobo Molica Oliveira1, Ellen Eduarda Fernandes1, Sergio Lúcio Pereira de Castro Lopes2
1Institute of Science and Technology - UNESP, Department of Biosciences and Oral Diagnosis, São José dos Campos, SP, Brazil.
Brazilian Oral Research
|July 17, 2024
Summary
This study examined mandibular condyle changes in Class II malocclusion patients with different facial types. While no significant differences were found overall, flattening was most common, particularly in dolichofacial patterns.
Area of Science:
- Dentistry
- Orthodontics
- Radiology
Background:
- Class II malocclusion is a common dental issue.
- Vertical facial patterns can influence craniofacial development.
- Temporomandibular joint (TMJ) morphology may be affected by malocclusion and facial type.
Purpose of the Study:
- To evaluate the prevalence of morphological changes in mandibular condyles.
- To assess these changes in relation to different vertical facial patterns (brachyfacial, mesofacial, dolichofacial).
- To investigate these changes in individuals with Class II malocclusion.
Main Methods:
- Observational, cross-sectional study with retrospective data collection.
- Cone beam computed tomography (CBCT) was used to analyze 140 mandibular condyles from 70 patients (25-50 years old).
- Patients had Class II malocclusion and no prior orthodontic treatment.
Main Results:
- No statistically significant differences in degenerative changes were found between vertical skeletal patterns.
- Flattening was the most prevalent condylar change (62% in dolichofacial).
- Subchondral bone cysts were the least prevalent (20% in dolichofacial).
Conclusions:
- Vertical facial patterns did not show statistically significant differences in the prevalence of degenerative TMJ changes in Class II malocclusion.
- Flattening was the most common morphological alteration observed.
- Further research could correlate TMJ changes with clinical characteristics.
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