Abdul Mueez, Adusumilli Gopinath , Neelakantha V Patil , K. Srinivas Kumar ,A.S Krishna Chaithanya

ABSTRACT

Objectives: To determine the buccolingual inclination of maxillary and mandibular posterior teeth between Class II division 1 malocclusion and Class I occlusion. Materials and Methods: Study consist of 25 subjects with Class I occlusion and 25 subjects with Class II division 1 malocclusion were selected to measure Buccolingual inclination of maxillary and mandibular premolars and first molars were measured with a bevel protractor. Results: All of the posterior teeth in both groups were lingually tilted. The maxillary premolars and first molars were significantly more lingually tilted (P< .05) in Class II division 1 malocclusion than in Class I occlusion. Mandibular first premolars were significantly less lingually tilted in Class II division 1 malocclusion than in Class I occlusion. No significant difference of Buccolingual inclination was found in mandibular second premolars and first molars between the two groups. Conclusions: Buccolingual inclination plays an important role in transverse discrepancy of Class II division 1 malocclusion.