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Erschienen in: Surgical and Radiologic Anatomy 1/2021

01.08.2020 | Original Article

Correlations among chronological age, cervical vertebral maturation index, and Demirjian developmental stage of the maxillary and mandibular canines and second molars

verfasst von: Sepideh Dadgar, Hoora Hadian, Mohamadreza Ghobadi, Farhad Sobouti, Vahid Rakhshan

Erschienen in: Surgical and Radiologic Anatomy | Ausgabe 1/2021

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Abstract

Purpose

Estimation of growth spurt from chronological age or dental development is of clinical interest to orthodontists. Since results in this regard are highly controversial and limited, this study was conducted to investigate associations among chronological age, skeletal development (cervical vertebral maturity [CVM]), and dental calcification (Demirjian) in girls and boys, independently.

Methods

Panoramic radiographs and lateral cephalographs of 112 boys and 112 girls were evaluated. Demirjian stages of dental development of the bimaxillary canines and second molars were determined. CVM stages of skeletal growth were as well estimated. Correlations among these were assessed. Differences between sexes and between maxilla/mandible arches were assessed. Cutoff points in Demirjian and chronological age reflecting skeletal growth spurt were found using receiver operator characteristic curve (α = 0.05, β = 0.9 separately for girls and boys).

Results and conclusions

Sex dimorphism existed both in CVM index and in Demirjian indexes. Compared to dental development and calcification, chronological age was the best predictor of skeletal growth and maturation. In estimating chronological age by radiography means, in girls, Demirjian method was better than CVM. In boys, Demirjian was better than CVM in the case of the molars but not canines. The cutoff points estimated for chronological age and dental calcification that can reflect skeletal growth spurt (between CS-3-and-CS-4) were as follows: in boys, age of 12 years; in girls, age between 11 and 12 years; the upper and lower canines: between G and H; the maxillary and mandibular second molars: between F and G; in the case of all teeth: between F and G.
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Metadaten
Titel
Correlations among chronological age, cervical vertebral maturation index, and Demirjian developmental stage of the maxillary and mandibular canines and second molars
verfasst von
Sepideh Dadgar
Hoora Hadian
Mohamadreza Ghobadi
Farhad Sobouti
Vahid Rakhshan
Publikationsdatum
01.08.2020
Verlag
Springer Paris
Erschienen in
Surgical and Radiologic Anatomy / Ausgabe 1/2021
Print ISSN: 0930-1038
Elektronische ISSN: 1279-8517
DOI
https://doi.org/10.1007/s00276-020-02541-4

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