Background: There is a relationship between facial deformity and angulation of impaction which is studied by many authors.
Aims and Objectives: To assess relation between the type of mandibular third molar impaction and skeletal deformity.
Materials and Methods: A cross sectional study was carried on 152 orthopantomograms (OPG) and lateral cephalometric of patients of 18 years and above (106 males and 46 females) and the type of lower third molar impactions and facial deformity was recorded.
Results: 106 (69.7%) were males and 46 (31.3%) were females. The commonest impaction angulation was mesio-angular impaction which was found in 98 teeth out of which 65 belonged to males (66.3%) and 33 belonged to females (33.7%). The majority of the impacted teeth were found in patients who had skeletal class I facial profile (78.2%) out of which, most of them (44%) had mesio-angular impaction while least had inverted impaction (1.6%).
Conclusion: Mandibular third molar impaction is significantly associated with anteroposterior skeletal molar relationship.


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