Verma Meenal, Verma Nikhil, Sharma Rakhee, Sharma Ashish
Department of Oral and Maxillofacial Pathology, Geetanjali Dental and Research Institute, Udaipur, Rajasthan, India.
Department of Prosthodontics and Crown and Bridge, Geetanjali Dental and Research Institute, Udaipur, Rajasthan, India.
J Forensic Dent Sci. 2019 May-Aug;11(2):57-63. doi: 10.4103/jfo.jfds_64_19. Epub 2020 Jan 24.
Age estimation is one of the essential factors in human identification. Teeth bestowed with features such as hardness and resilience to external factors such as chemicals, putrefaction, and fire explosions serve as a durable source in age estimation. Concurrently, they present with peculiar and comparable features of age-associated regressive changes along with dental procedures, which make them a mirror reflection of age changes from cradle to the grave of an individual. Age estimation in adults poses an enigma to the forensic dentists because as the age advances, the dentitions get influenced by numerous exogenous and endogenous factors which may lead to discrepancies between dental age and chronologic age. Since 1950, many authors have presented various methods for assessing age of individuals above 18 years. Here is an overview of the different methods with their application and limitations along with a mention of newer methods developed and tested with the formulation of population-specific formulas by Indian authors. The data have been sourced from different journal articles retrieved through Google Scholar and PubMed Central and articles received as study materials during the fellowship program in forensic odontology using keywords such as age estimation, adult dentitions, dentin translucency, and cementum annulations.
年龄估计是人类身份识别的重要因素之一。牙齿具有硬度以及对化学物质、腐烂和火灾爆炸等外部因素的耐受性等特征，是年龄估计中一种持久的依据来源。同时，牙齿还呈现出与年龄相关的退行性变化的独特且可比较的特征以及牙科手术相关特征，这使得它们成为一个人从摇篮到坟墓年龄变化的真实写照。对法医牙医来说，成年人的年龄估计是一个难题，因为随着年龄的增长，牙列会受到多种外源性和内源性因素的影响，这可能导致牙齿年龄与实际年龄之间存在差异。自1950年以来，许多作者提出了各种评估18岁以上个体年龄的方法。以下是不同方法的概述，包括其应用和局限性，同时还提及了印度作者开发并测试的新方法以及特定人群公式的制定。数据来源于通过谷歌学术和PubMed Central检索到的不同期刊文章，以及在法医牙科学 fellowship 项目期间作为学习资料收到的文章，使用的关键词如年龄估计、成人牙列、牙本质透明度和牙骨质年轮。
