我们每天刷牙,你可能有过这样的疑惑:牙膏能美白吗?是否越贵越好?中国医科大学航空总医院口腔外科主任赵强一一回答你的问题。1.牙膏是否有美白作用?传统的美白牙膏虽然多种多样,但除了味道不同外,它们的美白成分几乎相同。出于安全卫生的需要,美白牙膏中氧化剂含量很低,因此美白效果一般不会很明显。另外,美白牙膏只能去除牙齿表面的极少量色斑和外源性色素,对四环素牙、氟斑 We brush your teeth every day, you may have had such doubts: toothpaste whitening it? Whether the more expensive the better? China Medical University Aviation General Hospital of Zhao Qiang, director of oral surgery to answer your questions one by one. 1. Whether there is a whitening toothpaste effect? ​​Although the traditional whitening toothpaste variety, but in addition to different taste, their whitening ingredients are almost the same. For safety and health needs, whitening toothpaste oxidant content is very low, so the whitening effect is generally not obvious. In addition, whitening toothpaste can only remove a very small amount of stains on the surface of the teeth and exogenous pigments, tetracycline teeth, freckles