A prospective cohort study associated with bruxism and other oral symptoms

44名志愿者参加了这项研究。在一年多的时间里收集这些受试者关于口腔症状和习惯的问卷答案。从结果来看，没有观察到牙齿和牙周状况的任何变化。另一方面，在检查期间，女性受试者比男性受试者表现出更多的磨牙事件。女性受试者在间隔一年的检查中也表现出TMJ疼痛的增加。结果提示磨牙直接影响颞下颌关节结构。

Forty four volunteers were participated in this study. Answers for questionnaires concerning oral symptoms and habit were collected from these subjects over one year. From the results, any change concerning tooth and periodontal conditions did not observed. On the other hand, female subjects showed more events of bruxism than male subjects through examination period. Female subjects also showed increase of TMJ pain at the examination after one year interval. These results suggested that bruxism affected directly temporomandibular joint structure.