Abstract
BackgroundHand-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.AimTo 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.DesignIn 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.ResultsA 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.ConclusionThere 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.
Highlights
Hand-wrist radiographs and orthopantomographs are routinely used for assessing skeletal and dental maturation and analyzing skeletal morphology and growth patterns
There was a good concordance between the stages of modified middle phalanx of the third finger and the Demirjian’s tooth developmental stages
D stage of the mandibular second molar correlated with modified Middle phalanx of the third finger (MP3) F stages indicating the starting of the pubertal growth, Subjects with E, F, and G stage of the mandibular second molar was found to be associated with modified MP3 FG, G, and HI stages, which indicates that the completion of quarter to half of the pubertal growth (Figs. 3 and 4)
Summary
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. The changes associated with maturation are evident in many parts of the body including the craniofacial skeleton and the dentition, during the process of growth and development of any somatic. The classical and most widely used method for skeletal age evaluation is the highly reliable analysis of the radiograph of the hand-wrist bone. The disadvantages of these routine methods of skeletal maturity assessments are that they required elaborate equipment, expensive and the higher radiation dose and exposure time
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
