Valluri Rathna, Jain Yash, Lalitha Chintala, Sajjan Parappa, Ealla Kranti Kiran Reddy, Dantu Raghunath
Department of Dentistry, Malla Reddy Institute of Dental Sciences, Hyderabad, Telangana, India, Phone: +91 9177174051, e-mail:
Department of Dentistry, Malla Reddy Institute of Dental Sciences, Hyderabad, Telangana, India.
J Contemp Dent Pract. 2020 Mar 1;21(3):310-316.
The objective of the present investigation is to compare the accuracy of two methods of age estimation, Cameriere's European formula and Demirjian's method, in estimating the age of mixed-dentition children in Telangana.
Digital orthopantomographs (OPGs) of 36 children between the age of 7 years and 12 years were subject to analysis. All the OPGs were analyzed for dental age using both Cameriere's and Demirjian's methods for mixed dentition. Chronological age was calculated by subtracting the date of births from the date on which the OPGs were taken.
descriptive analysis was performed. The accuracies of both the methods (Cameriere's and Demirjian's) were evaluated by calculating the mean prediction error. Wilcoxon signed-rank test was performed for both methods of dental age estimation with chronological age and for boys and girls. Significance threshold was set at 5%.
Cameriere method resulted in a mean prediction error of 0.579 for girls and 0.483 for boys. Demirjian's method resulted in a mean prediction error of 2.228 for girls and 2.046 for boys.
In conclusion, as far as accuracy is concerned, Cameriere's European formula proved to be more accurate, according to the current investigation.
The significance of age estimation is reflected in various fields such as pediatric endocrinology, orthodontics, law, anthropology, archeology, and forensics where identification of unascertained human bodies is required (crime investigations, mass disasters). Demirjian's method is commonly employed for dental age estimation in pediatric dentistry, orthodontics, and forensic dentistry. Cameriere's method may serve as a more accurate and reliable method for dental age estimation. Key message: Cameriere's European formula proved to be better, in terms of accuracy, in determining the chronological age of mixed-dentition children in the region of Telangana, according to the current investigation.
本研究的目的是比较两种年龄估计方法，即卡梅里埃欧洲公式和德米尔坚方法，在估计特伦甘纳邦混合牙列儿童年龄方面的准确性。
对36名7至12岁儿童的数字化口腔全景片（OPG）进行分析。使用卡梅里埃法和德米尔坚法对所有OPG进行混合牙列的牙龄分析。实际年龄通过用拍摄OPG的日期减去出生日期来计算。
进行描述性分析。通过计算平均预测误差来评估两种方法（卡梅里埃法和德米尔坚法）的准确性。对两种牙龄估计方法与实际年龄以及男孩和女孩分别进行威尔科克森符号秩检验。显著性阈值设定为5%。
卡梅里埃法对女孩的平均预测误差为0.579，对男孩为0.483。德米尔坚法对女孩的平均预测误差为2.228，对男孩为2.046。
总之，就准确性而言，根据目前的研究，卡梅里埃欧洲公式被证明更准确。
年龄估计的意义体现在儿科内分泌学、正畸学、法律、人类学、考古学和法医学等各个领域，这些领域需要识别身份不明的人体（犯罪调查、大规模灾难）。德米尔坚法通常用于儿科牙科、正畸学和法医牙科的牙龄估计。卡梅里埃法可能是一种更准确可靠的牙龄估计方法。关键信息：根据目前的研究，在确定特伦甘纳邦地区混合牙列儿童的实际年龄方面，卡梅里埃欧洲公式在准确性方面被证明更好。
