Correlation Between Tooth Size Discrepancy and Malocclusions in Chhattisgarh Population Sample

Abstract

One of the main tasks of an orthodontist is to obtain a functionally balanced occlusion between the upper and lower dental arches. For an ideal occlusion, the mesiodistal crown diameters of the teeth in both arches should correspond. The mesiodistal tooth sizes of the maxillary and mandibular arches must have an ideal relationship to obtain an excellent occlusion at the completion of orthodontic treatment. This study was done to observe the difference in dimension of teeth among class I and class II malocclusion and comparing them with the ideal values given. Mesiodistal and buccolingual crown dimensions were measured on study casts by using digital sliding calliper in 2 groups. Group1 had 150 subjects with class I malocclusion, while Group 2 had 150 with class II malocclusion. Independent t test was conducted to evaluate the difference between the dimensions of teeth of the two groups. Statistical analysis was done on SPSS version 16, and p value was considered significant at 0.05. The difference between the groups showed a greater tooth dimension in the class II malocclusion group of population compared to the class I group. Conclusion of this study suggests that Mesiodistal and buccolingual crown dimensions were characteristically larger in the class II malocclusion group.