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Related Experiment Video

Updated: May 29, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Published on: August 22, 2022

Skeletal maturation evaluation using mandibular second molar calcification stages.

Sushil Kumar¹, Anu Singla, Rekha Sharma

¹Department of Orthodontics, PDM Dental College and Research Institute, Sarai Aurangabad, Bahadurgarh, Haryana, India. docshilu@yahoo.com

The Angle Orthodontist

|September 9, 2011

Summary

Dental maturity stages of the mandibular second molar, assessed using the Demirjian Index (DI), strongly correlate with skeletal maturity indicators (CVMI). This indicates that DI stages reliably predict skeletal maturity in adolescents.

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Published on: January 11, 2018

Area of Science:

Orthodontics
Dental Anthropology
Human Growth and Development

Background:

Skeletal maturity assessment is crucial for orthodontic treatment planning.
Cervical vertebrae maturation indicators (CVMI) are commonly used to assess skeletal maturity.
Dental development, specifically the Demirjian Index (DI) for mandibular second molars, has been explored as a potential indicator of growth.

Purpose of the Study:

To examine the relationship between mandibular second molar calcification stages and skeletal maturity.
To evaluate the reliability of second molar calcification stages as a diagnostic tool for determining skeletal maturity.

Main Methods:

Analysis of panoramic radiographs and lateral cephalograms from 300 subjects (9-18 years old).
Assessment of dental maturity using the Demirjian Index (DI).
Assessment of skeletal maturity using cervical vertebrae maturation indicators (CVMI).

Main Results:

A significant association was observed between DI and CVMI in both males (C* = 0.854) and females (C* = 0.866).
Specific DI stages (E, F, G, H) were correlated with distinct CVMI stages representing pre-peak, peak, and post-peak pubertal growth.
Mandibular second molar calcification stages demonstrate a strong predictive capability for skeletal maturation phases.

Conclusions:

A strong correlation exists between the Demirjian Index (DI) for mandibular second molars and cervical vertebrae maturation indicators (CVMI).
Mandibular second molar DI stages serve as reliable indicators for assessing skeletal maturity in adolescents.