Interpupillary Distance As A Guide For The Selection Of Upper Anterior Teeth

Purpose: This study was carried out to determine the relationship between the width of maxillary central incisor and interpupillary distance. Materials and Methods: A total of 100 subjects-50 male and 50 female individuals in the age group 18-26 years were selected based on predetermined selection criteria. Standardized facial frontal photographs of all the subjects were taken using a SLR camera in such a manner that maxillary anterior teeth were visible. The photographs were developed and printed to a size of 4x6 inch each. Each of these photographs were scanned and digital images were created each of which was saved in a separate file. Anthropometric measurements of interpupillary distance and mesiodistal width of maxillary right central incisor in millimeters were made using both computer software programme and manually using a digital vernier caliper. Data obtained was tabulated and subjected to statistical analysis. Results: Statistics analysis results showed positive correlation between interpupillary distance and mesio distal width of upper right central incisor amongst both male and female subjects. Male subjects had significantly less interpupilary distance as compared to female subjects. There was no statistically significant difference between the widths of central incisors of the male and female subjects. Conclusion: There was a positive correlation between interpupillary distanceand mesiodistal width of upper right central incisor in both sexes. lnterpupillary distance can be used as a guide in selecting suitable size of the artificial teeth.