Rida Ahmed, Fareeha Bokhari, Marium Jamil, Munawar Manzoor, Muhammad Azeem, Irfan Hanif.
Pont\'s index applicability in Pakistani dental class I and class II orthodontic patients.
Pak J Med Health Sci Jan ;15(2):333-6.

Aim: To evaluate Pont`s index applicability on Pakistani population as well as to evaluate the difference of two dental classes, i-e, class I and class II. Methods: A total of 100 casts from the records of patients in Orthodontics Department, University of Lahore were included in this descriptive cross-sectional study. Combined maxillary incisal width and arch widths were measured from study models using a digital caliper. The predicted arch widths were estimated with the formula proposed by Pont. Paired sample t test, was used to calculate the difference of predicted value and the actual measured value of inter-premolar and inter molar widths on dental casts. Results: The results revealed that there was no significant difference between the incisal width in dental class I and dental class II but highly significant difference between the predicted distance and measured distance between premolars in dental class I (M=5.69, Std. deviation= 2.18, p<.001) as well as in dental class II (M=5.35, Std. deviation= 3.46, p<.001).Significant difference was found between the predicted and measured distance between molars in dental class I (M=4.84, Std. deviation= 2.99, p<.001) as well as in dental class II (M=5.99, Std. deviation= 3.21, p<.001). Conclusion: It was concluded that overestimated values of premolar and molar arch widths were found using Pont`s index calculations as in Pakistani population narrow arch was observed in both dental classes I and II as compared to the Pont`s predicted values.

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