OBJECTIVES

To determine and compare discrepancy for anterior and overall tooth size ratios among class I and class II malocclusions in Davangere population and to compare the values with Bolton’s standard values.

METHOD

First group comprised of 50 patients with class I skeletal and dental malocclusion and second group of 50 class II skeletal and dental malocclusion. Evaluation and comparison of anterior and overall ratios of both the groups was done with each other to find out TSD and was compared with Bolton’s standard and a standard ratio for Davangere population was developed.

RESULTS

Anterior ratio for class I was 77.51% and for class II malocclusion was 76.89%. On comparison with standard Bolton’s ratio a statistically significant difference was found only for the overall ratio for class I malocclusion.

CONCLUSION: It suggests excess of tooth material in lower arch in class I malocclusion of Davangere population.