每个人在选择牙膏时,看法都不一样,有的人长期使用一种牌子的牙膏,这样做其实是不科学的。不同功效的牙膏最好交替使用,以免因长时间使用某一种牙膏而产生耐受性,使效果大打折扣。含氟牙膏防治龋齿在国家实施的牙膏标准中,对牙膏的氟含量做出了详细规定。这是因为氟化物是牙齿结构成分之一,适量的氟可使牙质光滑坚硬、耐酸耐磨,从而有效防治龋齿。但氟含量高了或低了,则有可能会破坏牙 Everyone in the choice of toothpaste, the views are not the same, some people long-term use of a brand of toothpaste, this is actually unscientific. Different effects of toothpaste is best used alternately, so as not to use a toothpaste for a long time to produce tolerance, the effect greatly reduced. Fluoride toothpaste prevention and treatment of dental caries in toothpaste standards implemented in the country, the fluorine content of toothpaste made a detailed provision. This is because fluoride is one of the components of the tooth structure, the right amount of fluoride can make the dentine smooth and hard, acid and abrasion, which effectively prevent dental caries. However, high or low fluorine levels may damage the teeth