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다중회귀모형을 이용한 수완부 골성숙도의 추정에 관한 연구

Other Titles
 Study on estimating skeletal maturity of hand-wrist using multiple regression model 
Authors
 김경호  ;  유형석  ;  김석현 
Citation
 Korean Journal of Orthodontics (대한치과교정학회지), Vol.27(5) : 853-864, 1997 
Journal Title
 Korean Journal of Orthodontics (대한치과교정학회지) 
ISSN
 2234-7518 
Issue Date
1997
Abstract
The evaluation of growth potency can be done with many physiologic indicators. It has well known that skeletal maturity has a close relation with both sexual maturity and somatic maturity, but the correlation between skeletal maturity and dental maturity was believed to be less certain. But, recent studies show that specific teeth. including lower canines, present close correlations with skeletal maturity, So, in this study, we studide hand-wrist X-ray films and orthopantomagrams of 387 Korean boys and girls aged from 7 to 15; the purpose was to determine skeletal and dental maturity, and to find out a new method to estimate individual skeletal maturity using multiple-regression model, without the help of hand-wrist X-ray film. As a result of this study, followings were observed. 1. The following multiple-regression model can estimate skeletal maturity index (SMI) with 84% accuracy, and regression coefficient of chronologic age, sex and lower canine show statistical significance. SMI = 0.60 x chronolngic age - 1.67 x sex** + 0.88 x lower canine* - 0.55 x lower 2nd molar* - 10.3 * : mean age corresponding each developing atage, ** : male = 1, femal = 0 2. The followering multiple-regression model can estimate skeletal age with 87% of accuracy, and regression coefficient of chronologic age, sex and lower canine show statistical significance. Skeletal age = 0.75 x chronolngic age - 0.55 x sex** + 0.71 x lower canine* - 0.09 x lower 2nd molar* - 5.77 * : mean age corresponding each developing atage, ** : male = 1, femal = 0
Files in This Item:
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Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Ho(김경호) ORCID logo https://orcid.org/0000-0002-8154-2041
Yu, Hyung Seog(유형석) ORCID logo https://orcid.org/0000-0002-1275-5078
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/177874
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