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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Published on: August 22, 2022

Human dental age estimation combining third molar(s) development and tooth morphological age predictors.

P W Thevissen¹, D Galiti, G Willems

¹Forensic Odontology Department, Faculty of Medicine, School of Dentistry, Katholieke Universiteit Leuven, Kapucijnenvoer 7, 3000, Leuven, Belgium. denthepa@telenet.be

International Journal of Legal Medicine

|August 14, 2012

Summary

Forensic dental age estimation in subadults (15-23 years) is most accurate using third molar development from panoramic radiographs. Adding tooth measurements offers minimal improvement for predicting age.

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Area of Science:

Forensic Anthropology
Radiology
Odontology

Background:

Panoramic radiographs offer insights into third molar development and tooth morphology for age estimation in subadults.
Accurate age assessment is crucial in forensic contexts, particularly for individuals nearing adulthood.

Purpose of the Study:

To evaluate the combined predictive performance of third molar development and permanent tooth morphology on panoramic radiographs for age estimation in subadults.
To determine the added value of morphological measurements beyond third molar development.

Main Methods:

Collected 25 gender-specific panoramic radiographs per year for ages 15-23.
Classified third molar development using the Gleiser and Hunt (1955) modified by Köhler (1994) technique.
Applied Kvaal (1995) measurements to permanent teeth on the left side.

Main Results:

Linear regression models incorporating third molar stages and tooth measurements were analyzed.
Maximal added age prediction performance was a 6% increase in R² and a 0.10-year decrease in RMSE.
Third molar development alone provided substantial age-predictive information.

Conclusions:

In subadults aged 15-23, third molar development on panoramic radiographs is the primary determinant for forensic dental age estimation.
Incorporating permanent tooth morphology measurements provides only marginal additional value.
Reliance on third molar development alone is recommended for optimal age estimation in this demographic.