关于窝沟封闭: Sealing a tooth is better than waiting for decay and filling the cavity. Decay damages teeth permanently. Sealants protect them. Sealants can save time, money, and the discomfort sometimes associated with dental fillings. Fillings are not permanent. Each time a tooth is filled, more drilling is done and the tooth becomes a little weaker. 封闭牙齿比等待腐烂和填补蛀牙要好。腐烂使牙齿永久受损。密封剂保护它们。密封剂可以节省时间,金钱,并且不适有时候与补牙有关。填充物不是永久的。每次一颗牙齿被填满,就要做更多的钻孔,牙齿就会变弱。 个人认为,需要先判断窝沟是不是静止龋。软的就不是。