Evaluate of position of impacted mandibular third molars and their relationship with the inferior alveolar canal with panoramic radiographs

Dr. ARCHANA CHAURASIA; Dr Anil Pandey; Dr. Amit Kumar Sharma

Volume : IX, Issue : III, March - 2019

Evaluate of position of impacted mandibular third molars and their relationship with the inferior alveolar canal with panoramic radiographs

Dr. Archana Chaurasia, Dr Anil Pandey, Dr. Amit Kumar Sharma

Abstract :

Background: Mandibular third molar removal is a frequent surgical procedure. This study was designed to evaluate the reliability of OPG in predicting the proximity of impacted third molar roots/root with inferior alveolar nerve canal. Materials & Methods: This study was conducted on 1000 patients (males– 500, females– 500) which were further divided into four groups of 250 each. Group A consisted of patients in the age group of 18–30 years, group B consisted of 31–40 years of age, group C consisted of 41–50 years of age and group D 51–60 years of age. Close relationship between impacted mandibular third molars and IAN canal was evaluated on OPG based on Winter’s classification and Pell and Gregory classification. Results: Majority of mandibular third molar teeth were of vertically impacted 790 (47.6%), followed by mesioangular 730 (43.9%), horizontal 90 (5.4%) and distoangular 50 (3%). Male (56%) had a higher percentage than females (44%). Age group 18–30 years had 250 males and 350 females, 31–40 years had 200 males and 110 females, 41–50 years had 40 males and 35 females and 51–60 years had 10 males and 5 females. Left side impaction was seen in 840 cases, right side in 720 and bilateral in 100 cases. Maximum males and females had class III relation seen in 558 cases and 365 cases respectively. Conclusion: Panoramic radiograph is a valuable in most cases to identify whether the IAC is in close association with a tooth. Prevention of damage to the inferior alveolar nerve should be based on a thorough understanding of the anatomy, as well as on an accurate planning for surgery.