Unverified88% confidenceCautionTime unknown
活性炭牙膏的美白靠物理摩擦吸附色渍,本身不含化学美白成分,且大多不含氟,用它替代日常含氟牙膏会增加龋齿风险
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
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Unverified美白效果主要依赖物理摩擦去除外源性色渍(茶渍/咖啡渍),对内源性牙齿发黄(如四环素牙、氟斑牙)基本无效80% similarUnverified美白与防龋要兼顾:选含氟量950-1450ppm且标注SLS或木瓜蛋白酶的产品,纯物理摩擦(小苏打+活性炭)型往往不含氟,长期用会牺牲防蛀78% similarUnverified美白和防蛀往往难兼得:强效美白靠高摩擦剂或过氧化物可能刺激牙龈,而含氟防蛀配方美白力有限,敏感人群更需舍弃美白优先护釉77% similarUnverified美白与防龋不冲突但需兼顾:优先选含氟量1000-1500ppm且标注美白功效的产品,纯活性炭牙膏若不含氟会丧失防龋保护76% similarUnverified含氟配方可提供基本防蛀保护,但不含美国牙膏常见的过氧化物美白成分,不具备实质美白效果76% similar
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