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Updated: Apr 18, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Assessment of skeletal maturation using mandibular second molar maturation stages
S Goyal1, S Goyal2, N Gugnani3
1King Faisal Hospital and Research Centre, Rwanda Biomedical Centre, Kigali, Rwanda.
Objectives:
To investigate the relationship between cervical vertebrae maturation and mandibular second molar calcification stages.
Study Design:
The study was designed as a retrospective, descriptive and crosssectional research project. Pre-treatment lateral cephalograms and panoramic radiographs of 99 males and 110 females in the age range of 7 to 18 years 7 months were evaluated with Demirjian Index (DI) and cervical vertebrae maturation indicators (CVMI) of Hassel and Farman. A null hypothesis was proposed that there is no relation between CVMI and DI.
Results:
A highly significant association (Pearson's contingency coefficient 0.713 for males and 0.863 for females) was found between DI and CVMI. In males, the DI stage E corresponded to stage 2 of CVMI (pre-peak of pubertal growth spurt) and DI stages F and G corresponded to stages 3 and 4 of CVMI (peak of pubertal growth spurt). DI stage H was associated with stages 5 and 6 of CVMI (end of pubertal growth spurt). In females, the DI stages C, D corresponded to CVMI stages 1, 2; DI stages E, F with CVMI stages 3, 4; DI stages G, H with CVMI stages 5, 6.
Conclusion:
Mandibular second molar calcification stages can be used as indicators for assessment of skeletal maturity.
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