Correlation between Intercanthal, Interpupillary, Interalar, and Intercommissural Distance with the Mesiodistal Width of the Maxillary Anteriors: An in vivo Study

Abstract

ABSTRACT Aim This study was conducted for the selection of artificial teeth for edentulous patients with the help of extraoral facial measurement. Materials and methods The intercanthal distance, interpupillary distance, interalar distance, intercommissural distance, and width of maxillary six anteriors from a total of 250 subjects were measured clinically. The measurements were made with the help of a digital caliper. Student's t-test was used to find the significance of parameters between male and female. Pearson correlation has been used to find the relation of the parameters. Results The total mean of 125 male subjects for intercanthal distance, interpupillary distance, interalar distance, intercommissural distance, and intercanine width was 31.58, 62.27, 34.77, 48.87, and 50.22 mm respectively. However, the total mean of 125 female subjects for intercanthal distance, interpupillary distance, interalar distance, intercommissural distance, intercanine width was 30.58, 61.48, 34.58, 48.20, and 49.34 mm respectively. The paired t-test showed highly significant results in relation to intercanthal distance and width of maxillary six anteriors. However, interalar distance was found to be nonsignificant and interpupillary and intercommissural distance was significant. Conclusion It can be concluded that although various methods for the selection of teeth are used, the applicability can vary due to the ethnic differences between populations. The multiplication factor for intercanthal distance, interpupillary distance, interalar distance, intercommissural distance was 1.6, 0.8, 1.4, and 1 in order to obtain the mesiodistal width of maxillary six anteriors respectively, in males and females. The values were greater for men than for women. No significant differences were found between sexes with respect to intercanthal distance. Clinical significance Although there are ethnic differences between populations, the proportions/relationships of anatomical landmarks to the teeth remain the same, which helps in the selection of artificial teeth for edentulous patients. How to cite this article Bangar B, Nakade PL, Jankar A, Kamble S. Correlation between Intercanthal, Interpupillary, Interalar, and Intercommissural Distance with the Mesiodistal Width of the Maxillary Anteriors: An in vivo Study. Int J Prosthodont Restor Dent 2017;7(4):109-113.