A Comparative Evaluation of Moyers Mixed Dentition Analysis among Bengali and Keralite Population

• Published in: Journal of international oral health 2015-12, Vol.7 (12), p.38
• Main Authors: Maroli, Sasidharan, Ali, Hashim, Chakkarayan, Jithesh, Vijayan, Vishal, Chinthan, Ganesh
• Format: Article
• Language: English
• Subjects: Females; Males; Population; Teeth
• ISSN: 0976-7428; 0976-1799

This study was undertaken to evaluate the applicability of Moyers' mixed dentition analysis to Bengali and Keralite population, to assess the percentage probability to be used for the two populations Bengali and Keralite. Record casts of 100 Bengali (50 - Males; 50 - Females) of 12-14 years were selected, and mesiodistal width of permanent incisors canines premolars was measured on study models. Similarly, 100 samples were drawn from Keralite population. Study models of 50 males and 50 females were prepared, and measurements were made. Paired t-test was performed to test the significance of the difference between the actual value (measured value) and the predicted value at each percentage level, as well as to test the difference between the Bengali and Keralite samples for both upper and lower teeth in male and female, respectively. The correlation coefficient for the actual mesiodistal width of canine and premolar with their predicted values were calculated for both Bengali and Keralite population. Paired t-test of difference between actual and predicted values for Bengali samples were least in case of the 65th percentile of the level of significance in upper arch and in lower arch it was the 50th percentile level of significance. For females, mean difference of upper arch was least at 65th percentile level and for lower arch at 50th percentile level of significance. For Keralite population, it was at 50th percentile level of significance in upper and lower arch for male and female it was at 65th percentile level in upper arch and 50th percentile level in the lower arch. The predicted value and the actual value were significantly correlated and may be used with much confidence in estimating the width of permanent canine, first premolar, and second premolar. Moyers' prediction values at 75th percentile level over predicted width of canine and premolars. Moyers prediction values at 65th percentile level of significance may be accepted for predicting the combined width of canine and first and second premolars in case of upper for Bengali male and female and also for upper teeth in Keralite females. In the case of lower arch, values should be accepted at 50th percentile level of significance to get a more accurate prediction.