대한치과교정학회지 (The korean journal of orthodontics)
- 제21권2호
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- Pages.341-351
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- 1991
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- 2234-7518(pISSN)
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- 2005-372X(eISSN)
Dental Age측정에 관한 연구
A STUDY ON THE MEASUREMENT OF DENIAL AGE
- Park, Soon-Seo (Dept. of Orthodontics, College of Dentistry, Dankook University) ;
- Cha, Kyung-Suk (Dept. of Orthodontics, College of Dentistry, Dankook University)
- 발행 : 1991.07.01
초록
Dental maturity is one of the index of physiological maturity indicators. To investigate the relationship between dental maturity and chronological age, the author took the orthopantomograms of 984 students, aged 7 through 17 years, having normal occlusion. The orthopantomograms were examined and calcification degree of each tooth on the left side was rated according to the method described by Demirjian. On the basis of findings of this study, the following results were obtained. 1. The root completion periods of mandibular permanent teeth were as follows; Central Incisor M
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