Age estimation by pulp/tooth ratio in lower premolars by orthopantomography

Abstract Accurate age estimation has always been a problem for forensic scientists, and apposition of secondary dentine is often used as an indicator of age. Since 2004, in order to examine patterns of secondary dentine apposition, Cameriere et al. [1–6] have been extensively studying the pulp/tooth...

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Veröffentlicht in:Forensic science international 2012-01, Vol.214 (1), p.105-112
Hauptverfasser: Cameriere, Roberto, De Luca, Stefano, Alemán, Inmaculada, Ferrante, Luigi, Cingolani, Mariano
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Alemán, Inmaculada
Ferrante, Luigi
Cingolani, Mariano
description Abstract Accurate age estimation has always been a problem for forensic scientists, and apposition of secondary dentine is often used as an indicator of age. Since 2004, in order to examine patterns of secondary dentine apposition, Cameriere et al. [1–6] have been extensively studying the pulp/tooth area ratio of the canines by panoramic and peri-apical X-ray images. The main aim of this paper is to examine the relationship between age and age-related changes in the pulp/tooth area ratio in monoradicular teeth, with the exception of canines, by orthopantomography. A total of 606 orthopantomograms of Spanish white Caucasian patients (289 women and 317 men), aged between 18 and 75 years and coming from Bilbao and Granada (Spain), was analysed. Regression analysis of age of monoradicular teeth indicated that the lower premolars were the most closely correlated with age. An ANCOVA did not show significant differences between men and women. Multiple regression analysis, with age as dependent variable and pulp/tooth area ratio as predictor, yielded several formulae. R2 ranged from 0.69 to 0.75 for a single lower premolar tooth and from 0.79 to 0.86 for multiple lower premolar teeth. Depending on the available number of premolar teeth, the mean of the absolute values of residual standard error, at 95% confidence interval, ranged between 4.34 and 6.02 years, showing that the pulp/tooth area ratio is a useful variable for assessing age with reasonable accuracy.
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Since 2004, in order to examine patterns of secondary dentine apposition, Cameriere et al. [1–6] have been extensively studying the pulp/tooth area ratio of the canines by panoramic and peri-apical X-ray images. The main aim of this paper is to examine the relationship between age and age-related changes in the pulp/tooth area ratio in monoradicular teeth, with the exception of canines, by orthopantomography. A total of 606 orthopantomograms of Spanish white Caucasian patients (289 women and 317 men), aged between 18 and 75 years and coming from Bilbao and Granada (Spain), was analysed. Regression analysis of age of monoradicular teeth indicated that the lower premolars were the most closely correlated with age. An ANCOVA did not show significant differences between men and women. Multiple regression analysis, with age as dependent variable and pulp/tooth area ratio as predictor, yielded several formulae. R2 ranged from 0.69 to 0.75 for a single lower premolar tooth and from 0.79 to 0.86 for multiple lower premolar teeth. 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Since 2004, in order to examine patterns of secondary dentine apposition, Cameriere et al. [1–6] have been extensively studying the pulp/tooth area ratio of the canines by panoramic and peri-apical X-ray images. The main aim of this paper is to examine the relationship between age and age-related changes in the pulp/tooth area ratio in monoradicular teeth, with the exception of canines, by orthopantomography. A total of 606 orthopantomograms of Spanish white Caucasian patients (289 women and 317 men), aged between 18 and 75 years and coming from Bilbao and Granada (Spain), was analysed. Regression analysis of age of monoradicular teeth indicated that the lower premolars were the most closely correlated with age. An ANCOVA did not show significant differences between men and women. Multiple regression analysis, with age as dependent variable and pulp/tooth area ratio as predictor, yielded several formulae. R2 ranged from 0.69 to 0.75 for a single lower premolar tooth and from 0.79 to 0.86 for multiple lower premolar teeth. Depending on the available number of premolar teeth, the mean of the absolute values of residual standard error, at 95% confidence interval, ranged between 4.34 and 6.02 years, showing that the pulp/tooth area ratio is a useful variable for assessing age with reasonable accuracy.</abstract><cop>Kidlington</cop><pub>Elsevier Ireland Ltd</pub><pmid>21821373</pmid><doi>10.1016/j.forsciint.2011.07.028</doi><tpages>8</tpages></addata></record>
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identifier ISSN: 0379-0738
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source MEDLINE; Access via ScienceDirect (Elsevier); ProQuest Central UK/Ireland
subjects Accuracy
Adolescent
Adult
Age
Age Determination by Teeth - methods
Age estimation
Aged
Analysis of Variance
Bicuspid - diagnostic imaging
Biological and medical sciences
Confidence intervals
Dental Pulp - diagnostic imaging
Dentin
Dependent variables
Estimates
Female
Forensic anthropology
Forensic Dentistry - methods
Forensic medicine
Forensic odontology
Forensic science
Forensic sciences
Frequency distribution
General aspects
Humans
Investigative techniques, diagnostic techniques (general aspects)
Lower premolars
Male
Mandible
Medical sciences
Men
Middle Aged
Multiple regression analysis
Orthopantomography
Pathology
Public health. Hygiene
Public health. Hygiene-occupational medicine
Pulp/tooth area ratio
Radiography, Panoramic
Regression Analysis
Spain
Statistical methods
Studies
Teeth
Young Adult
title Age estimation by pulp/tooth ratio in lower premolars by orthopantomography
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