Fluoride can prevent dental caries and it has been applied since the 20th century.
自20世纪以来,氟化物预防龋齿被发现并投入应用。
参考来源 - 氟保护漆预防乳牙龋齿的实验和临床研究The apperences of enamel fluorosis were ealier and more severity in 100 mg/L than 50 mg/L sodium fluoride group.
100 mg/L氟化钠组比50 mg/L组氟斑牙出现较早且更严重。
参考来源 - 诱导大鼠下切牙氟斑牙模型所需饮水氟浓度及时间的筛选The subjects were randomized into two groups: 1450ppm sodium monofluorophosphate dentifrice group and non-fluoride dentifrice group.
将其分为含MFP(氟浓度为1450ppm)牙膏组和不含氟牙膏组。
参考来源 - 定量光激发荧光技术在早期光滑面龋损诊断预防中的基础和应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
N-UNCOUNT Fluoride is a mixture of chemicals that is sometimes added to drinking water and toothpaste because it is considered to be good for people's teeth. 氟化物
It is a proven fact that fluoride strengthens growing teeth.
氟化物可以强化生长中的牙齿，这是已证明的事实。
At this stage, the tooth can repair the weakened area with the help of fluoride and minerals in saliva.
在这个阶段，牙齿可以借助唾液中的氟化物和矿物质修复脆弱的部位。
When you're choosing a kind of toothpaste, make sure it has fluoride.
选牙膏的时候要确保它含有氟化物。
The fluoride mixes with enamel, the hard surface on teeth, to help prevent holes, or cavities,from forming.
VOA: special.2009.03.11
The use of fluoride to protect teeth is common in many parts of the world.
VOA: special.2009.03.11
"At some level,debates like this never really end. Like,there are still people who believe that fluoride in water is a government plot."
VOA: standard.2010.03.23
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