2.TheyThe use a fluorid of fluoride to protect teeth is common in many parts of the world.
用氟化物保护牙齿被世界上很多国家所使用。
3.3素类:综合国内外的研究报告,证素类其及氧化聚合物具有抗氧化,抗炎,抗菌,抗细胞突变作用。
Acacatechin: Researches from home and abroad have proved that the acacatechin and its fluorides can resist oxidation, inflammation, bacteria and cell mutation.