Age Estimation by Modified Johanson Method

Johanson 방법을 응용한 연령추정

  • Lee, Won-Joon (Dept. of Oral Medicine, School of Dentistry, Chonnam National University) ;
  • Kim, Byung-Gook (Dept. of Oral Medicine, School of Dentistry, Chonnam National University) ;
  • Kim, Jae-Hyung (Dept. of Oral Medicine, School of Dentistry, Chonnam National University) ;
  • Lim, Hoi-Soon (Dept. of Oral Medicine, School of Dentistry, Chonnam National University) ;
  • Lee, Guem-Sug (Dept. of Oral Medicine, School of Dentistry, Chonnam National University) ;
  • Choi, Hong-Ran (Dept. of Oral Pathology, School of Dentistry, Chonnam National University)
  • 이원준 (전남대학교 치과대학 구강내과학교실) ;
  • 김병국 (전남대학교 치과대학 구강내과학교실) ;
  • 김재형 (전남대학교 치과대학 구강내과학교실) ;
  • 임회순 (전남대학교 치과대학 구강내과학교실) ;
  • 이금숙 (전남대학교 치과대학 구강내과학교실) ;
  • 최홍란 (전남대학교 치과대학 구강병리학교실)
  • Published : 2005.06.30

Abstract

Age estimation is fundamental and important in personal identification with forensic medicine and dentistry. Recently, a lot of studies using various part of the body have been done for age estimation. Age estimation with teeth is the most significant method comparing ones with other part of the body. Gustafson method and Johanson method using postmortem teeth have been authorized in accuracy and systemization and used domestically and internationally. The verification of the accuracy in above methods had been tried many times but it is still rare in Korea. Fifty-nine teeth(incisors, canine, premolars and molars) which were extracted due to periodontal diseases or orthodontic problem were collected. Present study is to 1) compare the accuracy of estimated age in applying Gustafson method and Johanson method to the teeth in Korea, 2) compare and analyze the correlation with results using Gustafson method and Johanson method by age, gender, maxilla - mandible and anterior - premolar - molar. Teeth were embedded in resin and sliced and then examined each one using Gustafson method and Johanson method. The results are as follows: 1. Actual age was a significant difference in estimated age by Johanson method. Actual age was a significant correlation in estimated age by Gustafson method and modified Johanson method. Modified Johanson method was more significant than Gustafson method. 2. In estimated age by Gustafson method, Johanson method and modified Johanson method, there was no significance with actual age by location and gender. 3. In estimated age by Gustafson method, Johanson method and modified Johanson method, there was significance with actual age by age group. Finally, Gustafson method and Johanson method can be used in Korea. To make more accurate verification, however, it needs more specimen and postmortem teeth. Johanson equation proposed by himself has to be developed by further studies.

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