Comparison between Bolton analysis and Chu’s simplified method for calculating anterior tooth size discrepancy

Abstract

Objective: The objective of present study is to compare the accuracy of Chu’s simplified method for calculating anterior tooth size discrepancy with that of Bolton’s method. Material and methods: The study was performed on 58 dental casts of untreated orthodontic patients, which were to undergo fixed orthodontic treatment in department of Orthodontics, Rehman College of Dentistry, Peshawar, Pakistan Results: Chu’s method for determining anterior tooth size discrepancy show overestimation as compared to Bolton’s method, with an average difference of 2.33 ±1.3mm. Difference was highly significant statistically (p<0.001). Conclusion: Chu’s method cannot be an accurate clinical substitute of Bolton’s method.