지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 125 - 130 (6page)
이용수
초록· 키워드
오류제보하기
Purpose: The dental age estimation of children is performed using dental maturity. Postmortem missing of the anterior teeth or the distortion of image of the anterior teeth in panoramic radiographs can make it difficult to analyze the development of the anterior teeth. This pilot study was conducted to derive a new age estimation method based only on the developmental stage of mandibular posterior teeth.
Methods: This study was conducted using panoramic radiographs of 650 subjects aged 3 to 15 years old. The dental developmental stages of the lower left first premolar, second premolar, first molar and second molar were evaluated according to the Demirjian’s criteria. The intra-/inter-observer reliability was evaluated, and multiple linear regression analyses were performed including the developmental stage of each tooth as an independent variable.
Results: The intra-/inter-observer reliability was 0.9626 and 0.8877, respectively, and showed very high reproducibility. Multiple linear regression analyses were performed for males and females, and the age calculation table was derived by obtaining the intercept and the coefficient according to the development stage of each tooth. The coefficient of determination (r²) of the age calculation method was 0.9634 for male and 0.9570 for female subjects, and the mean difference between chronological age and estimated dental age was –0.42 and –0.21, respectively.
Conclusions: This pilot study evaluated the developmental stages of four lower posterior teeth in the Korean group according to Demirjian’s criteria, and derived age estimation method. The accuracy was lower than when more teeth were used, but it will be useful to estimate age of children when the anterior teeth are difficult to accurately analyze.
Methods: This study was conducted using panoramic radiographs of 650 subjects aged 3 to 15 years old. The dental developmental stages of the lower left first premolar, second premolar, first molar and second molar were evaluated according to the Demirjian’s criteria. The intra-/inter-observer reliability was evaluated, and multiple linear regression analyses were performed including the developmental stage of each tooth as an independent variable.
Results: The intra-/inter-observer reliability was 0.9626 and 0.8877, respectively, and showed very high reproducibility. Multiple linear regression analyses were performed for males and females, and the age calculation table was derived by obtaining the intercept and the coefficient according to the development stage of each tooth. The coefficient of determination (r²) of the age calculation method was 0.9634 for male and 0.9570 for female subjects, and the mean difference between chronological age and estimated dental age was –0.42 and –0.21, respectively.
Conclusions: This pilot study evaluated the developmental stages of four lower posterior teeth in the Korean group according to Demirjian’s criteria, and derived age estimation method. The accuracy was lower than when more teeth were used, but it will be useful to estimate age of children when the anterior teeth are difficult to accurately analyze.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES
참고문헌 (23)
참고문헌 신청
Senn DR / 2013 / Manual of forensic odontology / CRC Press
Thevissen PW / 2012 / Ethics in age estimation of unaccompanied minors / J Forensic Odontostomatol 30(Suppl 1):84~102
Franco A / 2013 / Applicability of Willems model for dental age estimations in Brazilian children / Forensic Sci Int 231:401.e1~401.e4
Willems G / 2018 / Age estimation based on Willems method versus new country-specific method in South African black children / Int J Legal Med 132:599~607
Thevissen PW / 2010 / Human third molars development : comparison of 9 country specific populations / Forensic Sci Int 201:102~105
Thevissen PW / 2012 / Ethics in age estimation of unaccompanied minors / J Forensic Odontostomatol 30(Suppl 1):84~102
Franco A / 2013 / Applicability of Willems model for dental age estimations in Brazilian children / Forensic Sci Int 231:401.e1~401.e4
Willems G / 2018 / Age estimation based on Willems method versus new country-specific method in South African black children / Int J Legal Med 132:599~607
Thevissen PW / 2010 / Human third molars development : comparison of 9 country specific populations / Forensic Sci Int 201:102~105
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