Agenesis, position, class and angulation of impacted mandibular third molar teeth in 21 – 25 years old subjects visiting dental teaching hospital in Peshawar.

Objective: To document the frequency of agenesis, position, class and angulation of impacted mandibular third molar teeth in patients aged range between 21-25 years visiting Khyber College of Dentistry using Pell and Gregory and Winter’s classification system. Study Design: Descriptive Cross-Sectional study. Setting: Department of Maxillofacial Surgery and Orthodontics in Khyber College of Dentistry. Period: March to September, 2020. Material & Methods: A total number 390 patients having impacted mandibular third molar were selected using non-probability consecutive sampling technique. All impacted mandibular third molar teeth on panoramic radiographs were reviewed by a single examiner using X-ray viewer to determine agenesis, position, class and angulation of impaction. Results: The mean age of the study participants was 22.89 SD ± 1.41 years and majority of the patients were males (n= 203, 52.1%) and were from the age group 23 years (n= 114, 29.2%). Overall, majority of the impacted third molars both right and left side were Position C (57.5%) followed by Position A (30.75%) and Position B (11.7%).Agenesis were identified in 5.7% of the total sample assessed. Impaction patterns of the third molar was higher among males (52%) compared to females (48%). Most common angulation pattern on both arches was Mesioangular (46.4%) and least common was buccolingual (4.6%). A highly statistical significant difference was identified with chi-square test when angulation pattern was compared with gender. (P < 0.01). Conclusion: In conclusion, this research provides useful data regarding the different pattern of third molars impaction. The most common pattern of impaction on both arches was Position C and Class 3. Mesioangular angulation was identified in maximum number of patients. The results of the current study will help the maxillofacial surgeons in the safe removal of the impacted mandibular third molar specially in the healthcare settings where the resources are limited.