Lan L M, Yang Z D, Sun S L, Wen D, Kureshi A, Zeye M M J, Zha L, Li M
Department of Forensic Medicine, School of Basic Medical Science, Central South University, Changsha 410013, China.
Basic Medical College of Xinjiang Medical University, Urumqi 830011, China.
Fa Yi Xue Za Zhi. 2019 Aug;35(4):406-410. doi: 10.12116/j.issn.1004-5619.2019.04.005. Epub 2019 Aug 25.
Objective To apply Demirjian's and Cameriere's method for dental age estimation of adolescents from Hunan Han nationality, and compare the accuracy of the two methods. Methods A total of 480 orthopantomograms of?8-16 year?old adolescents from Hunan Han nationality?with no special diseases and good nutritional status were collected?by Xiangya Stomatological Hospital of Central South University from January, 2016 to July, 2017, among them 236 males and 244 females. The dental age of each adolescent was determined by Demirjian's method and Cameriere's method, respectively, and the paired t-test of the estimated dental age and the chronological age determined by the two methods was conducted by SPSS 20.0 software to compare the difference between estimated dental age and chronological age. Results Mean chronological age of males and females was 11.91 and 11.88 years, respectively. The estimated dental age determined by Demirjian's method showed an underestimate of chronological age by an average of 0.11 years （males） and 0.15 years （females）, while the estimated dental age determined by Cameriere's method showed an underestimate of chronological age by an average of 0.83 years （males） and 0.72 years （females）. Conclusion Demirjian's method is more accurate than Cameriere's method in dental age estimation of adolescents from Hunan Han nationality, therefore more suitable for dental age estimation of adolescents in this region.
目的 应用德米尔坚（Demirjian）法和卡梅里埃（Cameriere）法对湖南汉族青少年进行牙龄估计，并比较两种方法的准确性。方法 中南大学湘雅口腔医院于2016年1月至2017年7月收集了480例8 - 16岁、无特殊疾病且营养状况良好的湖南汉族青少年的全口曲面断层片，其中男性236例，女性244例。分别采用德米尔坚法和卡梅里埃法确定每名青少年的牙龄，并使用SPSS 20.0软件对两种方法估计的牙龄与实际年龄进行配对t检验，比较估计牙龄与实际年龄的差异。结果 男性和女性的平均实际年龄分别为11.91岁和11.88岁。德米尔坚法确定的估计牙龄显示，男性平均比实际年龄低估0.11岁，女性低估0.15岁；而卡梅里埃法确定的估计牙龄显示，男性平均比实际年龄低估0.83岁，女性低估0.72岁。结论 在湖南汉族青少年牙龄估计中，德米尔坚法比卡梅里埃法更准确，因此更适合该地区青少年的牙龄估计。
