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Related Experiment Videos

Third molar root development in relation to chronological age: a large sample sized retrospective study.

K Gunst1, K Mesotten, A Carbonez

  • 1Department of Orthodontics, Faculty of Medicine, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Katholieke Universiteit Leuven, Kapucijnenvoer 7, B-3000, Leuven, Belgium.

Forensic Science International
|September 13, 2003
PubMed
Summary
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Dental age estimation using wisdom teeth development is a reliable method for determining chronological age. This study developed regression formulas considering gender and tooth location for accurate age assessment.

Area of Science:

  • Forensic Anthropology
  • Odontology
  • Radiology

Background:

  • Accurate age estimation is crucial in forensic and anthropological contexts.
  • Dental development, particularly of third molars (wisdom teeth), offers a reliable indicator of age in adolescents and young adults.

Purpose of the Study:

  • To extend previous research by calculating chronological age based on third molar developmental stages.
  • To develop and validate regression formulae for dental age estimation in a Belgian Caucasian population.

Main Methods:

  • Analysis of 2513 orthopantomograms (OPGs) from individuals aged 15.7–23.3 years.
  • Scoring of third molar developmental stages by two calibrated observers using kappa statistics for reliability.
  • Application of multiple regression analysis to correlate dental development with chronological age.

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Main Results:

  • High intra- and interobserver reliability was confirmed using kappa statistics.
  • Significant Pearson correlation coefficients were found between chronological age and developmental stages of contralateral third molars.
  • Regression formulae were established, accounting for gender, tooth location, and number of wisdom teeth.

Conclusions:

  • Dental age estimation using third molar development is a valid method for determining chronological age.
  • The developed regression formulae provide a tool for age assessment, with probabilities for exceeding 18 years calculable for fully developed wisdom teeth.