Evaluation of Skeletal Maturation Using Mandibular 1st Premolar and 2nd Molar Calcification Stages: A Cross-sectional Radiographic Study

AIM AND OBJECTIVE: The study aimed at, whether the calcification stages of mandibular 1st premolar and 2nd molar can be used to assess skeletal maturity. MATERIALS AND METHODS: Lateral cephalogram and OPG of 72 growing subjects with good health (38 girls and 34 boys; age-group of 8–17 years) were selected for a cross-sectional study, in which the identity of patients was not revealed to the investigator. The dental calcification stage of mandibular 1st premolar and 2nd molar were estimated in accordance with the Demirjian system (DI) and skeletal maturation was estimated according to cervical vertebral maturation index (CVMI) given by Hassel and Farman and these two indices were compared. RESULTS: Chi-square test and Spearman rank-order correlation coefficient test showed that a significant relationship of mandibular 1st premolar and 2nd molar calcification stages with CVMI exists, for both males and females. In females, CVMI stage 2 showed maximum correlation to DI stage E of lower 2nd molar. In males, CVMI stage 2 showed maximum correlation to DI stage E of lower 1st premolar. CONCLUSION: The result of this study revealed that each stage developed prior in female subjects compared to male subjects and the calcification stages of lower 1st premolar and 2nd molar can be used to assess the peak of growth. HOW TO CITE THIS ARTICLE: Mittal K, Trehan M, Sharma S, et al. Evaluation of Skeletal Maturation Using Mandibular 1st Premolar and 2nd Molar Calcification Stages: A Cross-sectional Radiographic Study. Int J Clin Pediatr Dent 2021;14(S-1):S44–S49.