Sealants are painted on as a liquid and quickly hardento form a shield over the tooth.
保护胶像液体一样被涂上，迅速干燥，在牙面形成一层保护层。
2
This paper describes the adaptation for dentistry of the medical three circle model as described by Hardento specify learning outcomes.
本文介绍了适应牙科医疗三个循环模型所描述的那样哈登指定的学习成果。
3
After using, keep Chamois in the case supplied or just put Chamois at ventilated place. Chamois will hardento protect itself from germ and mildew to keep hygienic.