摘要
目的:分析下切牙倾斜度在不同垂直骨面型侧貌美观患者中的差异,为临床矫治设计提供参考。方法:收集正畸固定矫治结束的侧貌美观女性患者137例,按前颅底平面与下颌平面交角(∠SN-MP)将患者分为3组:低角组(31例)、均角组(89例)及高角组(17例),测量下中切牙与下颌平面交角(∠L1/MP)、下中切牙与上齿槽座点-颏前点连线交角(∠L1/A-Pog),协方差分析不同组间的差异。结果:∠L1/MP(°)在高角组中最小,低角组中最大,均角组居中,3组间差异有统计学意义(F=17.38,P<0.001),∠L1/A-Pog(°)在3组间差异无统计学意义(F=2.63,P>0.05)。结论:高角型侧貌美观患者下切牙舌向倾斜代偿,低角型唇向倾斜代偿,在制订矫治计划时应结合患者垂直骨面型,综合考虑患者下切牙的倾斜度。
Objective To study the differences in the inclination of lower incisors among the female patients with beautiful profiles in different vertical skeletal types so as to provide the clinical treatment design for a certain guiding. Methods 137 cephalometric films of female patients with beautiful profiles were selected and divided into three groups based on the vertical facial types （/SNMP） ： small degree （n = 31 ）, average degree （n = 89） and larger degree groups （n = 17）. The angles of/∠L1/MP and/∠L1/A-Pog were measured and treated with covari- ance analysis for detecting the differences between the groups. Results The index of L1-MP （ ° ） was the smallest in the larger degree group, the largest in the small degree group and average in the average group, with significant differences between the three groups （F = 17.38, P 〈 0.001 ）. There was no significant differences in ∠L1/A-Pog （°） （F = 2.61, P 〉 0.05）. Conclusion Lower incisors have compensatory inclined lingually in the group of higher mandible angle, but labially in the group of lower mandible angle.
出处
《实用医学杂志》
CAS
北大核心
2017年第10期1625-1627,共3页
The Journal of Practical Medicine
基金
广东省医学科学技术研究基金资助项目(编号:A2013094)
关键词
垂直骨面型
头影测量
下切牙
Vertical skeletal type
Cephalometric measuring
Lower incisor
作者简介
通信作者：刘从华E—mail：liuchod@163．com
