Fillings usually need several times to complete?

 　　According to internationally renowned expert Professor Cui Rongshuo mouth, due to dental caries in light loss of points, in some deep caries and caries categories. Therefore the number of treatment methods and treatment will be different. As the saying goes do not fill holes, keep teeth holes, so the teeth need to be repaired in time shallow caries, the number of fillings, the time to complete.

原文翻译如下：