Radiological Evaluation of Impacted Mandibular 3rd Molar

Abstract

Purpose: The purpose of this study was to assess impacted mandibular 3^rd molar radiologically in 33 Bangladeshi patients.

Methodology: Radiographic evaluation (by orthopantomogram) of 53 impacted mandibular 3^rd molar teeth of 33 Bangladeshi patients of ages ranged from 21 to 70 years was done who were conveniently selected from patients attended to department of Oral & Maxillofacial Surgery, Dhaka dental College Hospital & Confidence Dental Surgery, Dhaka.

Result: In the study of 33 patients, 21 (63.64%) were males and 12 (36.36%) were females. Out of 53 impacted teeth of 33 patients, highest number of mandibular third molars were in vertically position (39 teeth, i.e.  73.59%), followed by horizontal (8 teeth, i.e. 15.09%), mesio-angular (4 teeth, i.e. 7.54%), and disto-angular (1 tooth, i.e. 1.87%) position. Maximum number of third molars were at level A (29 teeth, i.e., 54.71%), followed by level B (18 teeth, i.e., 33.97%) and level C (06 teeth, i.e., 11.32%). 43 mandibular third molars were in class II relation (81.12%), followed by 8 teeth (15.09%) in class I relation and 2 teeth (3.78%) in class III relation.

Conclusion: The pattern of Impaction of mandibular 3^rd molar is characterized by high prevalence in male. The most common type is vertical, the most common position is position A and the most common class is Class-II.

J. Dhaka National Med. Coll. Hos.  2013; 19  (02): 36-39