Faizan-ul hassan, Ghulam Rasool, Ahsan Mahmood Shah, Syed Suleman Shah, Umar Hussain.
Applicability of pont's index in orthodontics patients in a sample of Peshawar.
Pak Oral Dental J Jan ;36(2):256-8.

The aim of study was to determine the applicability of Pont’s Index in a sample of Peshawar population. Seventy five casts were measured for combined incisors width, interpremolar width and intermolar width using digital vernier caliper in millimeter. The predicted arch widths in the first premolar and molar regions were estimated with the formula proposed by Pont. Premolar width = Sum of Incisor widths x 100 80 Molar width = Sum of Incisor widths x 100 64 Incisor diameters and arch widths were recorded for all subjects and described in terms of mean values, standard deviations, and range. Correlation coefficients (Pearson)were calculated between observed arch widths and those predicted according to Pont's index. A total of 75 out of which 40 females and 35 males casts were included in this study. The female to male ratio was 1.14:1. The mean age of the sample was 16.8 ± 1.8. The mean mesiodistal width for incisors, Interpremolar width, and intermolar were 31.2, 36.6 and 43.8 mm respectively. A significant but weak coefficient of correlation and coefficient of determination were found between the observed values and those predicted according to Pont's index. Low correlations were found between observed and Pont's predicted arch widths. Pont’s index is not reliable for in this sample of Peshawar population.

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