A radiographic assessment of the correlation between the calcification stages of the mandibular second molar and the middle phalanx of the third finger of 9–16 years old children

Egyptian Journal of Forensic Sciences

Dinesh Rao¹  Mitul Joshi¹  Shubha A.B.¹  Sachin Franklin¹  Sunil Panwar¹ 

[1] Department of Pediatric Dentistry, Pacific Dental College and Hospital, Udaipur, India

关键词: Dental maturation;    Growth prediction;    Modified MP3;    Mandibular second molar;   

DOI  :  10.1186/s41935-018-0069-3

学科分类：生理学与病理学

来源: Springer

【 摘 要 】

Hand-wrist radiographs and orthopantomographs are routinely used for assessing skeletal and dental maturation and analyzing skeletal morphology and growth patterns. Though minimal radiation is associated with a hand-wrist radiograph, it would be superlative to assess the growth stage without an additional radiograph. To assess the correlation between the calcification stages of mandibular second molar and the modified middle phalanx of the third finger (modified MP3) of 9 to 16 year old children. In this cross-sectional observational study we assessed the dental calcification of the mandibular second molar on orthopantomograms using Demirjian’s tooth developmental stages and skeletal maturity of the middle phalanx of the third finger on hand-wrist radiographs using modified MP3 method proposed by Rajagopal and Kansal (J Clin Orthod 36(7):398, 2002) of 100 children (48 boys and 52 girls), aged between 9 and 16 years. A strong association was found between calcification stages of mandibular right second molar and the developmental stages of the modified middle phalanx of the third finger of right hand in both the gender. Spearman rank order correlation coefficients between the developmental stages of the modified MP3 of hand and the developmental stages of the mandibular second molar and found to be statistically significant positive in males (0.62) and females (0.41) when Demirjian’s Index (DI) and modified middle phalanx of the third finger stages were compared. There was a good concordance between the stages of modified middle phalanx of the third finger and the Demirjian’s tooth developmental stages. Demirjian’s second molar calcification stages can be a better choice for predicting skeletal maturity because of its simplicity and reliability.

【 授权许可】

CC BY