Dental age estimation in Malaysian adults based on volumetric analysis of pulp/tooth ratio using CBCT data |
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| Affiliation: | 1. Department of Oral & Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia;2. Department of Oral Biology, Faculty of Dentistry, MAHSA University, Saujana Putra, Malaysia;3. Department of Paediatric Dentistry & Orthodontics, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia;4. Department of Dental Research Management Centre, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia;1. Department of Oral and Maxillofacial Radiology, Yonsei University College of Dentistry, Seoul, Republic of Korea;2. School of Dentistry, Mongolia National University of Medical Sciences, Ulaanbaatar, Mongolia;1. Pernambuco Dental School, Pernambuco University, UPE Camaragibe, Brazil;2. Department of Anatomy, Pernambuco Dental School, Pernambuco University, UPE Camaragibe, Brazil;3. Department of Oral Radiology, Federal University of Pernambuco, UFPE Recife, Brazil;4. Federal University of Pernambuco, Brazil;1. Departamento de Odontologia Social da Faculdade de Odontologia da Universidade de São Paulo (FOUSP), São Paulo, Brazil;2. Department of Dental Anthropology, School of Dental Medicine, University of Zagreb, Zagreb, Croatia;3. Laboratorio di Antropologia e Odontologia Forense (LABANOF), Institute of Legal Medicine, University of Milan, Milan, Italy;4. AgEstimation Project, Institute of Legal Medicine, University of Macerata, Macerata, Italy;1. Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran;2. Department of Orthodontics, School of Dentistry, Mashhad University of Medical Sciences, Vakilabad Blvd., Mashhad, Iran;3. Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran;1. Division of Forensic Odontology, Department of Diagnostic & Therapeutic Science, Meikai University School of Dentistry, Saitama, Japan;2. Department of Legal Medicine, Nihon University School of Dentistry, Tokyo, Japan;3. Division of Dental Radiology, Department of Diagnostic & Therapeutic Science, Meikai University School of Dentistry, Saitama, Japan;4. Department of Dental Radiology, Tokyo Dental College, Tokyo, Japan;5. Department of Anatomy, Tokyo Dental College, Tokyo, Japan;6. Forensic Odontology Center, Meikai University School of Dentistry, Saitama, Japan |
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| Abstract: | Forensic odontology plays an important role in human identification and dental age estimation is an integral part of this process. The aim of the study was to investigate the association between chronological age and pulp/tooth volume ratio in a Malaysian population (Malays and Chinese) from cone-beam computed tomography (CBCT) scans, enhanced with Mimics software. Three hundred CBCT scans of 153 males and 147 females, aged between 16 and 65 years were divided into 5 age groups. Volumetric analysis of the pulp/tooth ratio was performed in maxillary left canines, maxillary right canines and maxillary right central incisors. Simple linear regression and Pearson correlation analysis indicated the strongest coefficient of correlation (R) values for maxillary right central incisors (0.83) followed by maxillary right canines (0.74) and maxillary left canines (0.73). Fisher’s Z test indicated that dental age estimation is gender independent. The derived regression equations were further validated on an independent group of 126 teeth. The results indicated mean absolute error (MAE) values of 6.48 and 8.58 years for maxillary right central incisors and maxillary canines respectively. It was also noticed that MAE values were higher among the age groups ranging from 46 to 65 years. This study showed that a volumetric change in the pulp cavity with age is a valuable assessment method for dental age estimation among Malaysian population. |
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| Keywords: | Dental age estimation CBCT Mimics software Malaysian population |
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