Pattern of mandibular third molar impaction in the Indian population: a retrospective clinico-radiographic survey.

Objective: The objective of this study was to study incidence of type of impaction of mandibular third molars in the Indian population.

Study Design: Data of 1200 patients examined during a 5-year period were reviewed, which included status of mandibular third molar for inclination, emergence in oral cavity, and prevalence of caries. Radiographically, angulation of tooth, level of occlusal surface of third molar with respect to second molar, relationship between ascending ramus of mandible and distal surface of third molar, and proximity to inferior alveolar nerve were studied.