PMID: 11343848May 10, 2001Paper

A method of age estimation using Raman microspectrometry imaging of the human dentin

Forensic Science International : Synergy
P TraminiL Maury

Abstract

The aim of this work is to establish a correlation between ageing and Raman spectra imaging of human teeth. Raman spectrum of an analysed sample is characteristic of its chemical components. By exploring the different dentinal areas on each tooth, we sought to find a correlation between noticeable variability on Raman spectra and the stages of dentinal evolution with advancing age. A study on 30 teeth analysed by Raman microspectrometry was used to select predictors of age, and it allowed us to determine a regression formula, with age as a dependent variable. Our data were computed by means of a statistical method called partial least squares (PLS) regression. This method was specially adapted for this kind of situation, where we have numerous predictors and relatively few observations. The regression formula was performed on a test sample of four more teeth, and we obtained a correct age estimation, with a mean error of more or less than 5 years. The main benefits of this method was a minimal and non-destructive tooth preparation, which led to an efficient age prediction, for any age group.

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Citations

Mar 5, 2013·Ageing Research Reviews·Sara C Zapico, Douglas H Ubelaker
Nov 2, 2006·Dental Materials Journal·Carolina Steiner-OliveiraMarinês Nobre-dos-Santos
Apr 30, 2013·International Journal of Legal Medicine·Delphine TardivoBruno Foti
Nov 25, 2003·Journal of Chemical Information and Computer Sciences·L DuponchelJ P Huvenne
Jul 22, 2014·American Journal of Physical Anthropology·Nancy TangSimon Hillson
Oct 24, 2012·Forensic Science International : Synergy·G J EdelmanM C G Aalders
Feb 5, 2019·GeroScience·Lisa LiendlMarkus Schosserer
Nov 5, 2019·Journal of Forensic Dental Sciences·Sadaksharam JayachandranM Yuvaraj

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