ABSTRACT
Introduction: Golden proportion is an age-old concept for interpreting the beauty of nature. The corresponding application of this concept was done in dental esthetics through this study. The concept was used along with inner canthal distance (ICD) for selection of an appropriate width of maxillary central incisor width (CIW), which forms a dominant aspect in a person’s smile. Furthermore, interalar width (IAR) was used to estimate maxillary anterior width. Materials and Methods: A total of 130 subjects with age 19–25 years were selected. A digital Vernier caliper was used to measure the ICD, interalar distance, and CIW. CIW was measured mesiodistally at its contact points. Since ICD was greater than the combined width of incisors, it was multiplied by 0.618 to obtain combined CIW. The product was divided by two to obtain calculated single CIW. CIW was measured with the help of a dental floss. Statistical Analysis: Paired sample tests were performed for CIW and ICD. Correlation between IAR and CIW was checked using Kendall’s tau and Spearman’s rho tests. Results: According to Paired sample tests, the statistical significant difference between measured and calculated CIW was P < 0.001 which inferred that it was not reliable to depend on just one parameter for CIW. Kendall’s tau and Spearmans’ rho tests for IAR and combined maxillary anterior width showed P = 0.400 and P = 0.429 indicating no statistically significance. Conclusions: In the target population, one has to consider more than one biometric parameter for the selection of an appropriate width of maxillary central incisor. Furthermore, IAR cannot be used to estimate combined maxillary anterior width.
KEYWORDS:Esthetics, Innercanthal distance, Interalar width, Maxillary anteriors, Maxillary central incisor, Tooth selection