龋齿,俗称“虫牙”或“蛀牙”,是留在牙齿上或齿缝中的食物残渣经细菌作用引起的。所以,要漱口、刷牙,保持口腔卫生。近来国内外提倡少年儿童喝茶防齲齿,这是因为茶叶里含有较多的氟,并可溶于水而被吸收。不过,儿童喝茶防龋齿,应从一两 Dental caries, commonly known as “worm teeth” or “tooth decay”, are caused by bacterial action of food residues that remain on teeth or in crevices. So, gargle, brush your teeth and keep your mouth clean. Recently, children and adolescents at home and abroad to promote tea anti-caries, because tea contains more fluorine, and soluble in water and be absorbed. However, children should drink tea anti-caries, one or two