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Association between Mandibular Angle Fracture with Third Molar Positioning and Residual Bone Height
Ishfa Banu Haque1, Sandhya Joshi2, Kishor Bhandari1
1Department of oral and maxillofacial surgery Bir hospital, NAMS.
Journal of Nepal Health Research Council
|August 10, 2022
Summary
Partially erupted mandibular third molars are linked to a higher incidence of mandibular angle fractures. Lower residual bone height near the third molar may also predict fracture risk.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Traumatology
- Radiographic Analysis
Background:
- Mandibular angle fractures often correlate with the presence of third molars.
- Understanding this association is crucial for fracture prevention and management.
Purpose of the Study:
- To evaluate the role of mandibular third molars in angle fractures.
- To assess the impact of third molar positioning and adjacent bone height on fracture risk.
Main Methods:
- Retrospective analysis of 86 mandibular fracture cases (Jan 2019-Jan 2021).
- Review of orthopantomogram radiographs and patient records.
- Statistical analysis of third molar presence, angulation, position, and residual bone height.
Main Results:
- 34 cases (39.53%) presented with mandibular angle fractures.
- Third molar presence was significantly associated with angle fractures (p<0.026).
- Mesioangular impaction and specific occlusal positions were linked to angle fractures; lower residual bone height was also significant (p<0.023).
Conclusions:
- Partially erupted mandibular third molars increase the likelihood of angle fractures.
- Residual bone height is a potential predictor for mandibular angle fracture risk.
