摘要
目的:本研究的目的是比较[牙合]平面与6种不同的鼻翼耳屏线的关系。方法:选择125名具有完整自然牙列、安氏Ⅰ类咬合关系的口腔学生(男性36例,女性89例),将[牙合]平面规置于口内,数码相机拍摄侧面照片后,测量[牙合]平面和鼻翼中点-耳屏上点(A1-T1)、鼻翼中点-耳屏中点(A1-T2)、鼻翼中点-耳屏下点(A1-T3)、鼻翼下点-耳屏上点(A2-T1)、鼻翼下点-耳屏中点(A2-T2)、鼻翼下点-耳屏下点(A2-T3)之间的夹角。采用SPSS 21.0进行描述性统计、单样本Wilcoxon检验、Kruskal-Wallis H秩和检验,LSD法两两比较,以P<0.05为差异有统计学意义。结果:[牙合]平面与6种鼻翼耳屏线之间没有平行性,单样本Wilcoxon检验显示二者夹角与0°之间有统计学差异(P<0.001),但A1-T2与[牙合]平面的交角最小(2.80°),A1-T1、A1-T2、A2-T3与[牙合]平面的交角无统计学差异(P>0.05)。结论:鼻翼中点-耳屏中点、鼻翼中点-耳屏上点、鼻翼下点-耳屏下点可作为定位[牙合]平面的标志线。
Objective:To compare the relationship of the occlusal plane and different Ala-tragal lines.Methods:125 students(36 males and 89 females)with complete natural dentition and class I occlusal relationship were selected to place the plane gage in their mouths.After taking lateral photos with digital camera,the included angles between the occlusal plane and middle point of ala-upper point of tragus(A1-T1),middle point of ala-middle point of tragus(A1-T2),middle point of ala-lower point of tragus(A1-T3),lower point of ala-upper point of tragus(A2-T1),lower point of ala-middle point of tragus(A2-T2),lower point of ala-lower point of tragus(A2-T3)were measured.Results:There was no parallel between the occlusal plane and six kinds of Ala-tragus lines.There was a statistical difference between the two angles and 0°(P<0.001),but the intersection angle between A1-T2 and the occlusal plane was the smallest(2.80°),and there was no statistical difference between A1-T1,A1-T2,A2-T3,and the occlusal plane(P>0.05).Conclusion:The middle point of the ala-the middle point of the tragus,the middle point of the ala-the upper point of the tragus,and the lower point of the ala-the lower point of the tragus can be used as the marker line of the plane of location.
作者
杨佳迪
李宁
边策
王旭
YANG Jiadi;LI Ning;BIAN Ce;WANG Xu(Department of Basic Teaching and Research, School of Hospital of Stomatology, Hebei Medical University & Hebei Key laboratory of Stomatology, Shijiazhuang 050017, China;Department of Orthodontics, Beijing Hospital of Stomatological, Capital Medical University, Beijing 100050, China)
出处
《口腔医学研究》
CAS
北大核心
2020年第9期835-838,共4页
Journal of Oral Science Research
基金
2020年度河北省医学科学研究课题计划(编号:20200127)。
