【摘要】 目的:研究安氏Ⅱ类1分类错患者的咬合功能状况。方法:用T-scanⅡ系统4.02版记录26名安氏Ⅱ类1分类错患者在牙尖交错位(ICP)的力总值(TOF)、力不对称指数(AOF)、接触点数(NOC)、接触面积不对称指数(AOA)、力中心点的位置(COF)、力中心点的最大位移(MMCOF)及干扰指数(OII),并与26名正常者的同一指数对照分析。结果:错组TOF低于正常组,有显著统计学差异(P<0.01);错组NOC与正常组无统计学差异(P>0.05);错组AOF,AOA,COF,MMCOF,OII均高于正常组,有统计学差异(P<0.01)。结论:安氏Ⅱ类1分类错患者两侧咬合不平衡,可能存在干扰等相关病症,应及时进行矫正,以消除明显的咬合不利因素。更多还原

【Abstract】 Objective:To evaluate the occlusal function of patients with Class ⅡDivision 1 malocclusion.Methods:T-Scan II system 4.02 was used to record total occlusal force(TOF),asymmetry index of occlusal force(AOF),number of occlusal contacts(NOC),asymmetry index of occlusal area(AOA),center of force(COF),maximal movement of COF(MMCOF),occlusal interference index(OII)of 26 Class ⅡDivision 1 malocclusion in the intercuspal position(ICP)comparing with 26 normal occlusion.Results:TOF in Class ⅡDivision 1 malocclusion was significantly smaller than that in normal occlusion(P<0.05);while NOC between two groups showed no significant difference(P>0.05);AOF,AOA,COF,MMCOF,OII in ClassⅡ1 were significantly higher than those in normal occlusion(P<0.01).Conclusion:Unbalanced occlusion,occlusal interferences and other diseases may exist in Class Ⅱ Division 1 malocclusion,which should be treated in time to eliminate obvious adverse occlusion factors.更多还原