Journal of Forensic Dental Sciences
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Year : 2016  |  Volume : 8  |  Issue : 2  |  Page : 112-113

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

1 Department of Orthodontics, Government Dental College, Ahmedabad, Gujarat, India
2 Department of Orthodontics, AMC Dental College and Hospital, Ahmedabad, Gujarat, India
3 Department of Orthodontics, Government Dental College and Hospital, Ahmedabad, Gujarat, India
4 Department of Orthodontics, Jaipur Dental College and Hospital, Jaipur, Rajasthan, India
5 DDS Student, University of Pacific, Arthur A Dugoni School of Dentistry, San Francisco, USA
6 DDS Student, UCLA School of Dentistry, Los Angeles, USA

Correspondence Address:
Dr. Nishit Mehta
1, Gyandip Society, Dhumketu Road, Paldi, Ahmedabad - 380 007, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0975-1475.186372

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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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