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Forensic Age Estimation of Chinese Malaysian Adults by Evaluating Occlusal Tooth Wear Using Modified Kim's Index

BACKGROUND AND OBJECTIVE: Evaluation of dental attrition is an easy and relatively accurate approach to estimating the age of an adult either ante- or postmortem for some specific population. Dental attrition represents a progressive physiological age change that can be measured using variety of ind...

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Autores principales: Lu, Chai Kit, Yee, Margaret Chia Soo, Ravi, Spoorthi Banavar, Pandurangappa, Rohit
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5654270/
https://www.ncbi.nlm.nih.gov/pubmed/29129975
http://dx.doi.org/10.1155/2017/4265753
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author Lu, Chai Kit
Yee, Margaret Chia Soo
Ravi, Spoorthi Banavar
Pandurangappa, Rohit
author_facet Lu, Chai Kit
Yee, Margaret Chia Soo
Ravi, Spoorthi Banavar
Pandurangappa, Rohit
author_sort Lu, Chai Kit
collection PubMed
description BACKGROUND AND OBJECTIVE: Evaluation of dental attrition is an easy and relatively accurate approach to estimating the age of an adult either ante- or postmortem for some specific population. Dental attrition represents a progressive physiological age change that can be measured using variety of indices to aid as an adjunct in forensic age estimation. Some of the previously proposed indices have their own practical limitations. This paper focuses on using modified Kim's criteria to score dental attrition to estimate the age of Chinese Malaysian adults and validate it. METHODOLOGY: Tooth wear was evaluated on 190 dental models of Chinese Malaysian adults (age range: 20–60 years) using modified Kim's index to custom-derive a population specific linear equation. The same equation was validated further on new 60 dental casts. RESULTS AND CONCLUSION: Regression analysis revealed good correlation between age and teeth wear and lower standard error of estimate. Test of regression on a test sample (n = 30 pairs, age range: 20–60 years) showed insignificant difference between predicted versus the actual age with statistically acceptable mean absolute difference. These data suggest that modified Kim's index can be used effectively in forensic age estimation.
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spelling pubmed-56542702017-11-12 Forensic Age Estimation of Chinese Malaysian Adults by Evaluating Occlusal Tooth Wear Using Modified Kim's Index Lu, Chai Kit Yee, Margaret Chia Soo Ravi, Spoorthi Banavar Pandurangappa, Rohit Int J Dent Research Article BACKGROUND AND OBJECTIVE: Evaluation of dental attrition is an easy and relatively accurate approach to estimating the age of an adult either ante- or postmortem for some specific population. Dental attrition represents a progressive physiological age change that can be measured using variety of indices to aid as an adjunct in forensic age estimation. Some of the previously proposed indices have their own practical limitations. This paper focuses on using modified Kim's criteria to score dental attrition to estimate the age of Chinese Malaysian adults and validate it. METHODOLOGY: Tooth wear was evaluated on 190 dental models of Chinese Malaysian adults (age range: 20–60 years) using modified Kim's index to custom-derive a population specific linear equation. The same equation was validated further on new 60 dental casts. RESULTS AND CONCLUSION: Regression analysis revealed good correlation between age and teeth wear and lower standard error of estimate. Test of regression on a test sample (n = 30 pairs, age range: 20–60 years) showed insignificant difference between predicted versus the actual age with statistically acceptable mean absolute difference. These data suggest that modified Kim's index can be used effectively in forensic age estimation. Hindawi 2017 2017-10-10 /pmc/articles/PMC5654270/ /pubmed/29129975 http://dx.doi.org/10.1155/2017/4265753 Text en Copyright © 2017 Chai Kit Lu et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Lu, Chai Kit
Yee, Margaret Chia Soo
Ravi, Spoorthi Banavar
Pandurangappa, Rohit
Forensic Age Estimation of Chinese Malaysian Adults by Evaluating Occlusal Tooth Wear Using Modified Kim's Index
title Forensic Age Estimation of Chinese Malaysian Adults by Evaluating Occlusal Tooth Wear Using Modified Kim's Index
title_full Forensic Age Estimation of Chinese Malaysian Adults by Evaluating Occlusal Tooth Wear Using Modified Kim's Index
title_fullStr Forensic Age Estimation of Chinese Malaysian Adults by Evaluating Occlusal Tooth Wear Using Modified Kim's Index
title_full_unstemmed Forensic Age Estimation of Chinese Malaysian Adults by Evaluating Occlusal Tooth Wear Using Modified Kim's Index
title_short Forensic Age Estimation of Chinese Malaysian Adults by Evaluating Occlusal Tooth Wear Using Modified Kim's Index
title_sort forensic age estimation of chinese malaysian adults by evaluating occlusal tooth wear using modified kim's index
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5654270/
https://www.ncbi.nlm.nih.gov/pubmed/29129975
http://dx.doi.org/10.1155/2017/4265753
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