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Mandibular third molar angulation in extraction and non extraction orthodontic cases
Imtiaz Ahmed1, Gul-e-Erum, Naresh Kumar
1Department of Orthodontics, Dr. Irshat-Ul -Ebad Khan Institute of Oral Health Sciences, DOW University of Health Sciences, Karachi, Pakistan. drimtiaz75@hotmail.com
Journal of Ayub Medical College, Abbottabad : JAMC
|January 1, 2013
Summary
This study found no significant difference in mandibular third molar angulation between orthodontic patients planned for extraction versus non-extraction. These findings suggest angulation differences are morphological, not necessarily treatment-related.
Area of Science:
- Dentistry
- Orthodontics
- Oral Surgery
Background:
- Mandibular third molars are frequently evaluated in orthodontic treatment planning.
- Understanding their angulation is crucial for predicting impaction and treatment outcomes.
Purpose of the Study:
- To determine and compare the angulation of mandibular third molars in orthodontic patients.
- To assess if angulation differs between cases planned for extraction and non-extraction.
Main Methods:
- A cross-sectional study analyzed pre-treatment panoramic radiographs of 49 patients (age 11-26).
- The angle between the long axes of the second and third molars was measured.
- Statistical analysis included descriptive statistics and Mann-Whitney U-test for group comparison.
Main Results:
- Mean patient age was 17.94 years.
- Mandibular third molar angulations ranged from 8-94 degrees in extraction cases and 10-73 degrees in non-extraction cases.
- No statistically significant difference in pre-treatment angulation was found between extraction and non-extraction groups (p > 0.05).
Conclusions:
- Pre-treatment third molar angulation in orthodontic cases shows morphological variation.
- Observed differences in angulation between extraction and non-extraction groups were not statistically significant.
- Post-treatment changes in angulation may or may not be linked to extraction decisions.
