摘要
目的探讨伴有颞下颌关节紊乱病（temporomandibulardisorders，TMD）的开[牙合]患者的[牙合][牙合]干扰特征。方法169例女性开[牙合]患者根据有无TMD分为伴有颞下颌关节紊乱病组（TMD（＋）组）和无颞下颌关节紊乱病组（TMD（一）组），对两组患者治疗前的模型进行研究，来比较两组患者的早接触等[牙合]干扰特点。结果TMD（＋）组开骀患者中，57．8％的患者存在着正中颌位的[牙合]干扰，明显高于TMD（-）组（P〈0．05）。终末位置上的不稳定和由于磨牙的早接触引起的下颌前方偏移是伴有TMD的开[牙合]患者常见的两种咬合特征。结论本研究提示开[牙合]患者中早接触等功能性因素和颞下颌关节病的发病有关。
Objective To investigate the functional occlusal characteristics of open bite patients who have temporomandibular disorders （TMD）. Methods One hundred and sixty-nine female subjects with anterior open bite were selected for the investigation on prevalence of occlusal interference in open bite patients with TMD. Occlusal premature contact was identified by Moyer＇s functional wax bite method. Results 57.8% of TMD （＋） patients had occlusal premature contact, which was significantly higher than that in TMD （-） group （P=0. 033）. Anterior displacement of mandible caused by posterior teeth premature contact and terminal position unstable were frequently happened in TMD （＋） group. Conclusions This clinical study indicated that the functional factor such as oeclusal premature contact may have some relationships with TMD in open bite patients.
出处
《中华口腔正畸学杂志》
2009年第2期71-74,共4页
Chinese Journal of Orthodontics
关键词
开[牙合]
颞下颌关节紊乱病
咬合干扰
Open bite
Temporomandibular disorder （TMD）
Occlusal interference
