Demirjian、Willems两种牙龄推断法在新疆乌鲁木齐7～15岁维吾尔族和汉族中的应用
发布时间：2019-03-05 19:12
【摘要】：目的:通过研究Demirjian、Willems牙龄推断法评估新疆乌鲁木齐7~15岁青少年维吾尔族、汉族人群牙龄的准确性,以便获得更准确的牙龄。方法:本次回顾性研究纳入2014年6月-2016年6月我院口腔放射科拍摄的全口曲面断层片796张,汉族410张(其中男性195张,女性215张),维吾尔族386张(其中男性184张,女性202张)。运用Demirjian法、Willems法分别对维吾尔族、汉族推断的牙龄与实际年龄进行配对t检验。建立乌鲁木齐地区维吾尔族牙龄与实际年龄间的数学模型。结果:在评估青少年汉族人群时,相比Demirjian法存在高估现象,Willems法评估乌鲁木齐青少年汉族牙龄时更为准确,其推断的牙龄与实际年龄间的差异无统计学意义(P0.05)。对于维吾尔族人群,Demirjian、Willems法推断的牙龄与实际年龄两者间的差异均有统计学差异(P0.05)。牙龄(Y)与实际年龄(X)的相关回归方程如下:维吾尔族男性拟合方程为Y=-3.346+1.576X-0.028X2,女性拟合方程为Y=-4.255+1.696X-0.031X2。结论:Willems法可直接用于青少年汉族人群进行推断牙龄,建立维吾尔族人群牙龄与实际年龄间的数学模型,修正后牙龄推断方程可直接用于乌鲁木齐地区维吾尔族青少年牙龄的推断。
[Abstract]:Aim: to evaluate the accuracy of dental age of Uighur and Han population in Urumqi, Xinjiang by using Demirjian,Willems dental age estimation method in order to obtain more accurate dental age. Methods: from June 2014 to June 2016, 796 total curved section films were taken in the Department of Stomatology, 410 of Han nationality (195 male and 215 female) and 386 Uighur (184 male, respectively). (202 women). The age of teeth inferred from Uigur and Han nationality were tested by paired t-test with Demirjian method and Willems method respectively. A mathematical model between dental age and actual age of Uighur nationality in Urumqi area was established. Results: in evaluating adolescent Han population, there was an overestimation phenomenon compared with Demirjian method. Willems method was more accurate in assessing dental age of adolescent Han nationality in Urumqi, and there was no significant difference between the estimated dental age and actual age (P0.05). For Uighur population, the difference between dental age and actual age by Demirjian,Willems method was statistically significant (P0.05). The regression equation between the dental age (Y) and the actual age (X) was as follows: the fitting equation of Uighur male was Y, 3.346, 1.576X, 0.028x2, and that of female was 4.255,1.696X, 0.031x2.The fitting equation was Y, 3.346, 1.576X, 0.028x2. Conclusion: Willems method can be directly used to estimate dental age in adolescent Han population and establish a mathematical model between dental age and actual age in Uygur population. The modified posterior dental age estimation equation can be directly used to estimate the dental age of Uygur adolescents in Urumqi area.
【学位授予单位】：新疆医科大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R78
[Abstract]:Aim: to evaluate the accuracy of dental age of Uighur and Han population in Urumqi, Xinjiang by using Demirjian,Willems dental age estimation method in order to obtain more accurate dental age. Methods: from June 2014 to June 2016, 796 total curved section films were taken in the Department of Stomatology, 410 of Han nationality (195 male and 215 female) and 386 Uighur (184 male, respectively). (202 women). The age of teeth inferred from Uigur and Han nationality were tested by paired t-test with Demirjian method and Willems method respectively. A mathematical model between dental age and actual age of Uighur nationality in Urumqi area was established. Results: in evaluating adolescent Han population, there was an overestimation phenomenon compared with Demirjian method. Willems method was more accurate in assessing dental age of adolescent Han nationality in Urumqi, and there was no significant difference between the estimated dental age and actual age (P0.05). For Uighur population, the difference between dental age and actual age by Demirjian,Willems method was statistically significant (P0.05). The regression equation between the dental age (Y) and the actual age (X) was as follows: the fitting equation of Uighur male was Y, 3.346, 1.576X, 0.028x2, and that of female was 4.255,1.696X, 0.031x2.The fitting equation was Y, 3.346, 1.576X, 0.028x2. Conclusion: Willems method can be directly used to estimate dental age in adolescent Han population and establish a mathematical model between dental age and actual age in Uygur population. The modified posterior dental age estimation equation can be directly used to estimate the dental age of Uygur adolescents in Urumqi area.
【学位授予单位】：新疆医科大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R78
【参考文献】
相关期刊论文 前7条
1 孟姗;孙超;李玲;朱玲;;三种方法在南京地区儿童牙龄评估中的准确性[J];口腔生物医学;2016年01期
2 刘博;张爽;邵s，
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