摘要
目的 研究颞下颌关节紊乱病 (tempromandibulardisorders,TMD)患者的牙合接触特征。方法 应用T ScanII咬合分析仪对 32例TMD患者进行牙尖交错位、前伸及侧方运动的咬合检查并与正常组对照。结果 TMD患者的牙合力中心偏离中线的程度大于对照组 ,闭合时间与牙合分离时间明显较对照组延长 ,早接触出现率明显高于对照组 ,但非工作侧牙合干扰及前伸牙合干扰的出现率与对照组差异无显著性。结论 早接触是与TMD发病有密切关系的牙合因素 ,牙合力中心、闭合时间与牙合分离时间可作为判断TMD病变程度及治疗效果的参考依据。
Objective To investigate the characters of occlusal contacts of TMD . Methods The occlusal contact characters of 32 cases with TMD and 30 controls were measured with T-ScanII system in the intercuspal occlusion position,the protrusive movment as well as lateral movement. Results The clusion time, disclusion time and distance between center line and center of occlusal force of TMD group were longer than those of the control group and there were significant differences between them. Compared with the control group ,the incidence rate of the premature contact was higher, however, the lateral and protrusive balanced occlusal contacts showed no significant differences between the two groups. Conclusion The results of the study indicated that the premature contact was a factor closely related to TMD, the center of occlusal force, the clusion time and disclusion time, which were important references for lesion degree and therapeutic efficacy of TMD.
出处
《口腔医学》
CAS
2004年第2期105-107,共3页
Stomatology
关键词
颞下颌关节紊乱病
hé接触
Tempromandibular disorders
Occlusal contact
