摘要
目的探讨常用的Moyers预测表和Tanaka-Johnston预测方程对福建北部地区替牙期儿童尖牙、前磨牙牙冠宽度早期预测的适用性,建立适用于福建省北部地区替牙期儿童的尖牙、前磨牙牙冠宽度的预测方程。方法采用随机整群抽样方法,选取福建省北部地区建瓯市政和县城区青少年120例,通过数字化技术提取研究对象完整的恒牙列牙颌信息,分析性别等因素对牙冠宽度的影响,检验Moyers预测表和Tanaka-Johnston预测方程在福建省北部地区儿童牙弓发育预测的适用性。结果(1)左右同名牙的牙冠宽度间比较,差别无统计学意义(P>0.05);尖牙、前磨牙牙冠宽度之和男性>女性,差别具有统计学意义(P<0.01)。(2)查阅Moyers预测表,分别获得对应的上、下颌尖牙前磨牙牙冠宽度之和的预测值,与实测值比较,差别具有统计学意义(P<0.05)。应用Tanaka-Johnston预测方程分别计算男女上、下颌尖牙前磨牙牙冠宽度之和的预测值,与实测值比较,差别具有统计学意义(P<0.05)。结论Moyers预测表和Tanaka-Johnston预测方程在福建省北部地区替牙期儿童的应用存在局限性,可能与种族、地域、遗传、环境等因素有关。基于Tanaka-Johnston预测方程的原理,建立了适用于福建省北部地区替牙期儿童牙弓发育的预测方程。
Objective The aim of the present study was to determine the applicability of the Moyers prediction tables and Tanaka-Johnson prediction equations in the prediction of un-erupted canines and premolars in a population of northern Fujian province,China.Also,new regression equations are presented to predict the width of the un-erupted canines and premolars.Method A total of 120 dental casts were recruited from a population of northern Fujian province,China.The greatest mesiodistal widths of all the teeth were measured using 3DSS technology considering the factor of gender.All the data were compared with Moyers prediction tables and Tanaka-Johnson prediction equations.Result(1)There was no statistical difference between the crown widths of the teeth with same names from both sides.The sums of the widths of un-erupted canines and premolars of males are greater than those of females from the statistical point of view.(2)Tanaka-Johnston equations and Moyers prediction tables revealed a significant difference with the mesiodistal dental width of northern Fujian population.Conclusion Moyers prediction tables and Tanaka-Johnston equations are not suitable in predicting the width of un-erupted canines and premolars of northern Fujian population.This discrepancy may be attributed to differences in race,region,genetics and environment.Based on the calculation principles from Tanaka-Johnston equations,regression equations for predicting the width of un-erupted canines and premolars of the population of north northern Fujian province were established.
作者
王静
姚军
张佳丽
李俊震
WANG Jing;YAO Jun;ZHANG Jiali;LI Junzhen(Department of Pediatric Dentistry,Stomatological Hospital of Xiamen Medical College,Xiamen 361008,China;Department of Pediatric Dentistry,School and Hospital of Stomatological,Fujian Medical University,Fuzhou 350002,China)
出处
《福建医科大学学报》
2021年第4期326-329,336,共5页
Journal of Fujian Medical University
关键词
牙冠宽度
间隙分析
结构光三维扫描
模型测量
替牙期
福建省北部地区
mesiodistal tooth width
space analysis
3DSS
dental model measurement
mixed dentition
northern Fujian province
