牙关紧闭症

例句：

1. 1. He suffersfrom teeth-clenching disease andhas difficulty opening his mouth.
   他患有牙关紧闭症，难以张开嘴巴。
2. 2. Thedentist advised him to avoid chewing gumduring the treatment to prevent teeth-clenching disease.
   牙医建议他在治疗期间避免嚼口香糖，以免患上牙关紧闭症。
3. 3. Shewas diagnosed with teeth-clenching disease and requiredregular dental checkups.
   她被诊断出患有牙关紧闭症，需要定期进行牙齿检查。