Accuracy in the legal age estimation according to the third molars mineralization among Mexicans and Columbians

• Published in: Atención primaria Vol. 46; no. Suppl 5; pp. 165 - 175
• Main Authors: Costa, José, Montero, Javier, Serrano, Sarai, Albaladejo, Alberto, López-Valverde, Antonio, Bica, Isabel
• Format: Journal Article
• Language: English
• Published: Spain Elsevier Espana 01.11.2014; Elsevier
• Subjects: Accuracy; Adolescent; Adult; Age Determination by Teeth - methods; Age estimation; Child; Colombia; Data Accuracy; Female; Forensic odontology; Forensic science; Humans; Internal Medicine; Male; Mexico; Molar, Third - diagnostic imaging; Radiography, Panoramic - statistics & numerical data; Scientific article; Third molar development; Tooth Calcification - physiology; Young Adult; Accuracy; Age estimation; Third molar development; Forensic science; Forensic odontology
• ISSN: 0212-6567; 1578-1275; 1578-1275
• DOI: 10.1016/S0212-6567(14)70086-1

This study aims to assess the accuracy of age estimation according to two cut-off points of Demirjian's developmental stages (G and H) in the wisdom teeth, using panoramic radiographs from Colombian and Mexican teenagers. The degree of maturation of the third molars was classified according to Demirjian in 8 stages (from A to H) by a blinded trained assessor. The sensitivity, specificity and efficacy of two cut-off points (G and H) were calculated for both samples. The orthopantomographies of 316 subjects, 171 Colombians (54.1%) and 145 Mexicans (45.9%), were analyzed. The stage H was found to be the best threshold for detecting juveniles (because the high specificity) in all the third molars assessed. The specificity was higher for lower third molars than for upper third molars, but no asymmetrical discrepancy was noted. The stage H is the best cut-off point for detecting the adulthood when a high-specificity test is required.