ArticleJournal of clinical and experimental dentistry2024
Accuracy of the third molar maturity index (I3M) for diagnosing the legal majority of young southern Brazilians.
Article in Journal of clinical and experimental dentistry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Population effects and cross-population generalisability of the third molar maturity index for 18-year age classification: a multi-centre study with machine learning validation.International journal of legal medicine · 2026Article
- Optimization of panoramic radiographic dose for third molar dental age assessment.International journal of legal medicine · 2026Article
- Assessment of the coming of age using the Caggiano method based on Demirijian stages and the Cameriere method applied to third molars in a Brazilian population.The Journal of forensic odonto-stomatology · 2026Article
- Demirjian's and Cameriere's methods for estimating the 18-year legal age threshold using third molar maturity in a Northern Thai population.Scientific reports · 2026Article
- Accuracy of the London Atlas and RP Atlas in age estimation of Southern Brazilians.Journal of clinical and experimental dentistry · 2025Review
- Evaluating the Effectiveness of the Third Molar Maturity Index (IDiagnostics (Basel, Switzerland) · 2025Article
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10 authors.
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Abstract
Background: The numerous techniques for identifying adulthood require research testing the accuracy of each method in different populations. This study verified the accuracy of the third molar maturity index (I3M) proposed by Cameriere et al. (2008) for diagnosing the age of majority in a southern Brazilian population sample. Material and Methods: Panoramic radiographs of patients with dental element 38 treated at the School of Dentistry of the University of Passo Fundo (UPF), RS, Brazil, were analyzed. The patients were separated into age groups between 15.00 and 22.99 years. The Cameriere (2008) method was applied to each radiograph. The study sample comprised 671 individuals, with 385 women (mean age 19.67 ± 2.05) and 286 men (mean age 19.5 ± 2.11). Results: The original cut-off value of I3M≤0.08 classified individuals younger and older than 18 years. ROC curve plotting resulted in an overall accuracy of 0.69 and 0.84 for women and men, respectively. The most favorable cut-off value for southern Brazilian men was 0.06, and women showed better results with an I3M adjusted to 0.13. The new cut-off values produced an accuracy of 0.78 for women and 0.84 for men. The original cut-off point to the I3M (0.08) was not the most appropriate for the studied sample. Conclusions: Thus, index adjustments to 0.13 for women and 0.06 for men may improve method performance among southern Brazilian individuals.
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