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NCJRS Abstract

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NCJ Number: 218489 Find in a Library
Title: Age Estimation of Korean Adults by Occlusal Tooth Wear
Journal: Journal of Forensic Sciences  Volume:52  Issue:3  Dated:May 2007  Pages:678-683
Author(s): Jong-Il Yun M.S.D; Jeong-Yun Lee M.S.D; Jin-Woo Chung Ph.D.; Hong-Seop Kho Ph.D.; Young-Ku Kim Ph.D.
Date Published: May 2007
Page Count: 6
Type: Report (Study/Research)
Format: Article
Language: English
Country: United States of America
Annotation: This study assessed the validity of the modified Kim's scoring system as a method of recording the degree of occlusal tooth wear as a means of estimating chronological age, using 1,092 pairs of maxillary and mandibular full-arch casts from Korean adults.
Abstract: Findings show that the modified Kim's scoring system had excellent reliability in showing that occlusal tooth wear had a positive correlation with age. Tooth-wear scores of all teeth except the two lower central incisors were higher in males than in females. Estimated ages were within 5 years of actual ages in 63.5 percent of males and 64 percent of females. The accuracy of age estimation improved when the subjects were divided into two age groups and data were reanalyzed. The author concludes that the data from the 1,092 individuals in this study can be used as a standard for age estimation of Korean adults. The degree of occlusal tooth wear was assessed with the naked eye or a magnifying glass under a light, using the modified Kim's scoring system. The intraexaminer and interexaminer reliabilities of the original version of Kim's scoring system were proven in a previous study. The current study modified the scoring system by changing the selection of teeth and degree classifications. Anterior teeth and their respective scores were included. Researchers included unsound, restored, or missing teeth on which occlusal tooth wear could not be determined, and then they added the scores for those teeth. Scoring was performed by two trained examiners after a mutual calibration procedure. Two examiners scored occlusal tooth wear by using casts of 30 matched individuals independently to test interexaminer agreement. The statistical analysis procedure is described. 6 tables and 36 references
Main Term(s): Police policies and procedures
Index Term(s): Age determination; Death investigations; Dental analysis; Foreign criminal justice research; Forensic sciences; Investigative techniques; Korean; Victim identification
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