Assessment of Validity of Pont’s Index and Establishment of Regression Equation to Predict Arch Width in Nepalese Sample

objective: To evaluate the validity of Pont’s index in Nepalese population and establish the regression equation to predict probable arch width from sum of the maxillary incisors. Materials & Method: The sample comprised of 50 female and 50 male subjects of the age ranging 17-24 years. Sum of the mesio-distal widths of the maxillary incisors were measured. Descriptive statistics, Coefficient of regression, and regression equation were calculated to predict the arch width in premolar and molar regions. Independent t-test was performed to find the difference between mean values of male and female subjects. Statistical analysis was done using SPSS version 17.0. result: Mean value of Pont’s index ratio was 0.80 and 0.63 for premolar and molar respectively for Nepalese sample. Statistical analysis showed no significant difference between male and female in Pont’s premolar and molar index. The correlation of coefficient for Sum of Incisors/Premolar width and Sum of Incisors/Molar width were 0.39 and 0.46 respectively. conclusion: Pont’s analysis can be applied in Nepalese samples. There is no significant difference in values between male and female samples.