Pattern of Mandibular Third Molar in the South Western Nigeria: Twenty-Two Years Retrospective Review of Transalveolar Extraction at the University College Hospital Ibadan

Third molar is said to be the most commonly impacted tooth in the oral cavity and accounts for 98% of all impactions and mandibular third molars are the most frequently impacted. The aim of the study is to access the pattern of presentation of mandibular the third molar impaction. A retrospective review of cases of impacted mandibular third molar extraction in the oral surgery clinic, UCH Ibadan between January 1997 and December 2018. 1271 cases of impacted mandibular third molar teeth reviewed, only 1223 with complete information, were included in the analysis. Information was extracted from the patients case notes and maxillofacial daily record book included. Distributions of obtained values were compared using the Pearson χ2 test and student t test. Among 1223 cases, 490 (40.1%) were male and 733 (59.9%) were female (X2 = 17.2 and P Value = 0.002) (Table 1). The most common angulation of impaction was mesioangular (679; 55.5%).