The Korean Journal of Legal Medicine

Korean Society for Legal Medicine (대한법의학회)
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The Application of Paewinsky et al.'s Age Estimation Method to Periapical Radiographs

치근단 방사선 사진에서 Paewinsky 연령추정법 적용에 대한 연구

  • Roh, Byung-Yoon (Section of Human Identification, Medical Examiner's Office, National Forensic Service) ;
  • Seo, Jeong-Uk (Section of Human Identification, Medical Examiner's Office, National Forensic Service) ;
  • Kim, Chang-Gyum (Section of Human Identification, Medical Examiner's Office, National Forensic Service) ;
  • Choi, Chang-Un (Section of Human Identification, Department of Forensic Medicine Investigation, National Forensic Service Seoul Institute) ;
  • Lee, Won-Joon (Section of Human Identification, Department of Forensic Medicine Investigation, National Forensic Service Seoul Institute) ;
  • Lee, Sang-Seob (Section of Human Identification, Medical Examiner's Office, National Forensic Service)
  • 노병윤 (국립과학수사연구원 중앙법의학센터 신원확인실) ;
  • 서정욱 (국립과학수사연구원 중앙법의학센터 신원확인실) ;
  • 김창겸 (국립과학수사연구원 중앙법의학센터 신원확인실) ;
  • 최창운 (국립과학수사연구원 서울과학수사연구소 법의조사과 신원확인실) ;
  • 이원준 (국립과학수사연구원 서울과학수사연구소 법의조사과 신원확인실) ;
  • 이상섭 (국립과학수사연구원 중앙법의학센터 신원확인실)
  • Received : 2018.11.12
  • Accepted : 2018.11.26
  • Published : 2018.11.30
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Abstract

There have been many radiographic studies on age estimation that evaluate reduction in size of dental pulp cavity with secondary dentin formation. The Paewinsky method reported high accuracy in estimating ages by measuring the width of the pulp cavity in panoramic radiographs. The aim of this study was to evaluate the application of the Paewinsky method to digital periapical radiographs. This study was conducted on 103 cases that reported to the Section of Human Identification of the National Forensic Service. The age was calculated by applying the Paewinsky method that measures the root and pulp canal width at three points in a tooth. The estimation results were compared with those calculated by the Johanson method. When the Paewinsky models were applied to digital periapical radiographs, the errors were significantly greater as compared to the original study. The errors of the maxillary second premolar and mandibular lateral incisor were greater than those of the maxillary central incisor, lateral incisor, mandibular canine, and first premolar. Furthermore, errors of the age estimation models in level C were greater than those in levels A and B. This study could be a reference for the application of the Paewinsky method to digital periapical radiographs.

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