The chronology of second molar development in Brazilians and its application to forensic age estimation
Almeida Manuella Santos Carneiro, Pontual Andrea dos Anjos, Beltrao Rejane Targino, Beltrao Ricardo Villar, Pontual Maria Luiza dos Anjos,
소속 상세정보
( Almeida Manuella Santos Carneiro ) - Brazil Federal University of Paraiba School of Dentistry Department of Clinic and Social Dentistry
( Pontual Andrea dos Anjos ) - Brazil Pernambuco University-UPE Pernambuco Dental School Department of Oral Medicine
( Beltrao Rejane Targino ) - Brazil Federal University of Paraiba School of Dentistry Department of Clinic and Social Dentistry
( Beltrao Ricardo Villar ) - Brazil Federal University of Paraiba School of Dentistry Department of Clinic and Social Dentistry
( Pontual Maria Luiza dos Anjos ) - Brazil Federal University of Pernambuco Department of Clinical and Social Dentistry
KMID : 1024020130430010001
Abstract
Purpose: This study investigated the possible correlation between the mineralization of the second molars and the chronological age of a sample population of the state of Paraiba, Brazil. Materials and Methods: One thousand eight hundred fifty-four digitized panoramic images using a scanner of a private dental radiology service were obtained in six months. Of these, 457 were selected from patients aged 4.6 to 16 years who met certain criteria. The images were assessed twice by a radiologist with 5 years experience. A minimum interval of 30 days between the evaluations of the same patient was established. To analyze the relationship between chronological age, calcification level proposed by Demirjian et al in 1973, gender, and tooth, a multiple linear regression model was adjusted, taking age as the response variable (p<0.05). Results: The gender and calcification level were significantly correlated with the age of the patients (p<0.05). There was a significant difference between the average age of the patients’ upper teeth compared to the lower ones in both genders (p<0.05). The dental development occurred earlier in female individuals than in male ones, and there was no significant difference between the right and left second permanent molars. Conclusion: It was observed that ethnic variables are related to certain parameters of age and sex identification in the Brazilian population, providing important information for forensic evaluations.
키워드
Tooth Calcification; Molar; Age Determination by Teeth; Radiography; Panoramic
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