Evaluation of skeletal maturation using mandibular third molar development in Indian adolescents

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Published Aug 1, 2016
https://doi.org/10.4103/0975-1475.186372
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Volume 8, Issue 2, May-August 2016

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Nishit Mehta
Department of Orthodontics, Government Dental College, Ahmedabad, Gujarat
Dolly Patel
Department of Orthodontics, AMC Dental College and Hospital, Ahmedabad, Gujarat
Falguni Mehta
Department of Orthodontics, Government Dental College and Hospital, Ahmedabad, Gujarat
Bhaskar Gupta
Department of Orthodontics, Jaipur Dental College and Hospital, Jaipur, Rajasthan
Grishma Zaveri
DDS Student, University of Pacific, Arthur A Dugoni School of Dentistry, San Francisco
Unnati Shah
DDS Student, UCLA School of Dentistry, Los Angeles

Abstract

Objective: This study was done with the following objectives: to estimate dental maturity using the Demirjian Index (DI) for the mandibular third molar; to investigate the relationship between dental maturity and skeletal maturity among growing patients; to evaluate the use of the mandibular third molar as an adjunctive tool for adolescent growth assessment in combination with the cervical vertebrae; to evaluate the clinical value of the third molar as a growth evaluation index.Materials and Methods: Samples were derived from panoramic radiographs and lateral cephalograms of 615 subjects (300 males and 315 females) of ages ranging 9-18 years, and estimates of dental maturity (DI) and skeletal maturity [cervical vertebrae maturation indicators (CVMI)] were made.Results: A highly significant association (r = 0.81 for males and r = 0.72 for females) was found between DI and CVMI. DI Stage B corresponded to Stage 2 of CVMI (prepeak of pubertal growth spurt) in both sexes. In males, DI stages C and D represent the peak of the pubertal growth spurt. In females, stages B and C show that the peak of the pubertal growth spurt has not been passed. DI stage E in females and DI Stage F in males correlate that the peak of the pubertal growth spurt has been passed. Conclusion: A highly significant association exists between DI and CVMI. Mandibular third molar DI stages are reliable adjunctive indicators of skeletal maturity.

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How to Cite
Nishit Mehta, Dolly Patel, Falguni Mehta, Bhaskar Gupta, Grishma Zaveri, & Unnati Shah. (2016). Evaluation of skeletal maturation using mandibular third molar development in Indian adolescents. Journal of Forensic Dental Sciences, 8(2), 127–134. https://doi.org/10.4103/0975-1475.186372
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