Methods: a rubber dam was placed over the teeth to protect the gum.
方法：将橡皮障置入口腔内保护牙龈。
The article is outline introduction of rubber dam key project design.
文章对橡胶坝工程设计进行了概要介绍。
Rubber dam allows patients to truly relax and many fall asleep in my chair.
橡皮障可以真正使得病人放松，很多病人甚至能入睡。
Rubber dam allows patients to truly relax and many fall asleep in my chair.
橡皮障可以真正使得病人放松，很多病人甚至能入睡。
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