孕前洗牙可有效预防孕期牙龈出血起床时常感到嘴里有血腥味,刷牙时往往牙龈出血——这一切都是牙结石惹的祸。牙结石不仅挤压正常的牙龈组织,还是细菌的理想栖息地,是各种微生物的避难所。由于牙结石很坚硬,刷牙时难以去除,时间久了,就使牙 Pre-pregnancy scaling can effectively prevent gingival bleeding during pregnancy often feel the smell of blood in the mouth, often gums bleeding when brushing teeth - all this is the curse of dental calculus. Tooth calculi not only squeeze the normal gingival tissue, or the ideal habitat for bacteria, is a refuge for a variety of microorganisms. As the calculus is very hard, hard to remove when brushing, over time, make teeth