COMPARISON OF MICRO-AESTHETICS PARAMETERS WITH DENTAL MALOCCLUSION AND FACIAL HEIGHT AMONG ORTHODONTIC CASES: A CROSS SECTIONAL STUDY

Abstract

Maxillary anterior teeth proportion and display has a special value in dental aesthetics. This study was done to assess the micro-esthetic parameters of maxillary anterior teeth and their possible association with lower anterior facial height and dental malocclusion types. Pre orthodontic records of 180 cases were selected. Molar relationship Class I, II and III were examined on plaster models and Micro-Aesthetic Parameters (Crown length, width, width length ratios, scallop depth and gingival aesthetic line) were assessed on plaster models using Digital Vernier Calliper.The lower anterior facial height was measured on lateral Cephalogram using software (View box 4TM). Micro aesthetic parameters were compared with malocclusion and face height types using one-way ANOVA and Tukey test. Most of the samples had Class II (90%) followed by Class I molar relationship (69%) and Class III (21%) relationship. The mean lower anterior facial height for Normodivergent, Hyper divergent and Hypo divergent was 83.3%, 12.7%, 3.3% respectively. The width/ length ratios were found to be greater than 80% in 79% of the sample. Micro-esthetic parameters had no significant association with lower anterior facial height or malocclusion types. Width length ratios of maxillary anterior teeth and other micro aesthetic parameters were statistically different from their ideal values. Micro aesthetic parameters also showed no significant association with lower anterior facial height and dental malocclusion types.