牙齿对食物营养的消化和吸收,具有重要的意义。一口洁白而整齐的牙齿是人们面部美不可缺少的部分,大凡健康的人都有一口好的牙齿。 适量应用氟化物是全世界一致公认的预防龋齿的方法,如饮水加氟、食盐加氟、牛奶氟化或氟化物牙膏、牙齿涂氟等。但利用茶叶中大量的氟即浓茶漱口、固齿美容并不多 Tooth food digestion and absorption of nutrients, of great significance. A white and neat teeth is an indispensable part of the beauty of the face, all healthy people have a good tooth. Appropriate amount of fluoride is universally recognized as a method of preventing dental caries, such as drinking water plus fluoride, salt and fluoride, milk fluoride or fluoride toothpaste, fluoride tooth coating. However, the use of a large number of tea that is rich tea fluoride mouthwash, solid tooth beauty is not much