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Accuracy and evaluation of a new regression equation in predicting the width of unerupted permanent canines and
A Bhatnagar1, A A Sinha2, S Chaudhary2
1Department of Paedodontics and Preventive Dentistry, Kothiwal Dental College and Research Centre, Moradabad, UP, 244001, India. akashbhatnagar17@gmail.com.
Aim:
To assess the applicability of two regression equations based on mixed dentition analysis and to propose and evaluate a new regression equation using the mandibular incisors and first permanent molars as predictors in calculating the size of unerupted permanent canines and premolar teeth in school children.
Methods:
Dental study casts of 100 children (50 males and 50 females) aged 11-14 years from schools situated in Moradabad, Uttar Pradesh, India were used. The analysis of Tanaka Johnston, Bernabe Flores-Mir and the proposed equation were tested on the casts.
Results:
The analysis of Tanaka Johnston and Bernabe Flores-Mir tended to overestimate the mesio-distal width of the canines and premolars. The proposed equation also overestimated but the mean difference showed a closer approximation with the actual measured values compared to the other two equations.
Conclusion:
Validating studies with a similar population must be conducted to confirm the applicability and precision of the proposed equation.
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