Demirjian法在乌鲁木齐市维吾尔族未成年人年龄推断中的应用  

Dental age assessment using Demirjian′s method on urumqi juveniles

作　　者：杨爽[1] 米丛波[1] 王杰睿[1] 

机构地区：[1]新疆医科大学第一附属医院口腔正畸科,新疆乌鲁木齐830054

出　　处：《中国美容医学》2014年第1期44-47,共4页Chinese Journal of Aesthetic Medicine

摘　　要：目的：研究Demirjian法推断乌鲁木齐市3～16岁维吾尔族儿童、青少年实际年龄的适用性。方法：收集乌鲁木齐市新疆医科大学第一附属医院口腔中心符合纳入标准的年龄在3～16周岁的维吾尔族儿童、青少年口腔曲面断层片362例（男195例，女167例），按照Demirjian法记录牙齿发育指数及牙龄，并对实际年龄与DemirjJan法推断的牙龄进行配对t检验，将牙齿成熟指数和年龄进行曲线拟合，初步建立两者间的数学模型。结果：直接应用用Demirjian法进行年龄评估时，其推断的年龄与实际生活年龄之间的差异有统计学意义（P〈0．05），牙齿成熟指数（Y）与实际年龄（x）的相关回归方程如下：Y（男）=-61．119＋20．965X-0．686X2，Y（女）=-74．475＋25．214X-0．901X2。结论：DemirjJan法不能用于测定乌鲁木齐市3～16岁年龄段维吾尔族儿童、青少年的年龄，使用时需进行适当的修正。Objective To validate the applicability of Demirjian＇s method for age estimation in children and teenagers of urumqi Uighur population. Methods Digital panoramic radiographs of 362 children of urumqi origin were assessed in Demirjian＇s method. There were 195 boys and 167 girls involved in this study with chronological age from 3 to 16 years.The dental maturity scores （DMS） and dental ages of all the subjects were calculated.Paired t-test was performed between the chronological age and the age determined by Demirjian＇s method.The method of nonlinear regression was used to established the logistic model between the dental maturity score and the chronological age initially. Results The Demirjian method utilizing French-Canadian standards presented significant difference between dental age and chronological age for the sample.The results of paired t-test between chronological age and predicted age showed that there was significant difference （P〈0.05）in boys and girls.Demirjian＇s dataset is not suitable for estimating the age of 3-16 years old urumqi Uighur children.The regression equations were estabilished as follows：Y （male）=-61.119＋20.965X-0.686X2,Y （female） =-74.475 ＋25.214X-0.901X2. Conclusion The standards of dental age described by Demirjian etal may not be suitable for urumqi children. Uygur children may need their own specific standard for an accurate estimation of chronological age.

关 键 词：年龄测定 牙齿发育 Demirj Jan法 维吾尔族 

分 类 号：R783.5[医药卫生—口腔医学]