Abstract：
Age estimation plays significant role in forensic science especially when there is unavailability of the information concerned to the deceased. Use of population specific models of age estimation results in questionable evidence legally when tried on Indian children. The present study was designed to assess the accuracy of Cameriere\'s Italian and Balwant Rai Indian model on South Indian children and to derive and validate a novel model for south Indian children by considering a sample from a larger geographical area with a greater sample size of 2500. Accuracy of both the models for South Indian children was analysed using root mean square error. Significant differences were observed in estimated age across all age groups and between sexes, using above models. Root mean square error using Cameriere\'s Italian model was 1.54 and for Balwant Rai Indian model, it was found to be 1.78. The error for all the age groups was found to be 1.49 to 1.60 using Cameriere\'s model and 1.41 to 2.1 using Rai\'s model. A novel Population specific model was derived based on open apices of left mandibular seven teeth. Root mean square error with novel derived Population specific model was found to be less than 1 year overall being 0.94 and for all the age groups ranged from 0.91 to 0.96. The derived Population specific model exhibits superior accuracy compared to both the models and hence it can be considered for dental age estimation of the south Indian children in medico-legal cases.
摘要：
年龄估计在法医学中起着重要作用，尤其是当死者无法获得有关信息时。在对印度儿童进行审判时，使用人口特定的年龄估计模型会在法律上产生可疑的证据。本研究旨在评估Cameriere的意大利和BalwantRai印度模型对南印度儿童的准确性，并通过考虑来自更大地理区域的样本和更大样本的样本来得出和验证南印度儿童的新模型。2500。使用均方根误差分析了南印度儿童的两种模型的准确性。所有年龄组和性别之间的估计年龄均存在显着差异，使用上述模型。使用Cameriere的意大利模型的均方根误差为1.54，而BalwantRai印度模型的均方根误差为1.54，结果是1.78。使用Cameriere\的模型，发现所有年龄组的误差为1.49至1.60，使用Rai\的模型为1.41至2.1。基于左下颌七颗牙齿的开放顶点，得出了一种新颖的群体特异性模型。发现新衍生的人口特定模型的均方根误差小于1年，总体为0.94，所有年龄组的均方根误差范围为0.91至0.96。与这两种模型相比，得出的人口特定模型具有更高的准确性，因此可以考虑将其用于医学法律案件中南印度儿童的牙齿年龄估计。
