ASSOCIATION BETWEEN BOLTON'S RATIO AND OVER JET DEVIATION IN CLASS II MALOCCLUSION AMONG SOUTH INDIAN POPULATION- A RANDOMIZED CONTROLLED TRIAL

Abstract

Introduction: The aim of this study is to analyze the difference in the incidence of tooth size discrepancies using boltons ratio in class II malocclusion with varying overjet. The study groups consists of Group I: normal occlus Materials And Methods: ion with ideal overjet and overbite (control), Group II: Class II div.1 with less than 5mm overjet Group III: Class II div.1 with more than 5mm overjet. The anterior and overall tooth size ratio was calculated for each sample as described by Bolton and included in statistical analysis. The mean anterior and Results: overall Bolton ratio of the normal occlusion group (78.8 and 91.88) is slightly greater than the original value. Class II malocclusion with overjet greater than 5mm showing a lowest anterior ratio, the overall ratio for the class II malocclusion group is almost same. Inter proximal Conclusion: slicing may be recommended in the anterior segment to eliminate the interarch discrepancy especially in increased overjet