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A Reappraisal of Developing Permanent Tooth Length as an Estimate of Age in Human Immature Skeletal Remains
Author(s) -
Cardoso Hugo F.V.,
Spake Laure,
Liversidge Helen M.
Publication year - 2016
Publication title -
journal of forensic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.715
H-Index - 96
eISSN - 1556-4029
pISSN - 0022-1198
DOI - 10.1111/1556-4029.13120
Subject(s) - molar , premolar , analysis of covariance , statistics , mathematics , orthodontics , sample size determination , juvenile , incisor , dentistry , age groups , analysis of variance , medicine , biology , demography , genetics , sociology
This study expands on existing juvenile age prediction models from tooth length by increasing sample size and using classical calibration. A sample of 178 individuals from two European known sex and age skeletal samples was used to calculate prediction formulae for each tooth for each sex separately and combined. Prediction errors, residuals, and percentage of individuals whose real age fell within the 95% prediction interval were calculated. An ANCOVA was used to test sex and sample differences. Tooth length for age does not differ between the samples except for the canine and second premolar, and no statistically significant sex differences were detected. The least prediction error was found in the incisors and the first molar, and the highest prediction error was found in the third molar. Age prediction formulae provided here can be easily used in a variety of contexts where tooth length is measured from any isolated tooth.