Unverified80% confidenceDecision RuleTime unknown
选购时看RDA磨损值(相对牙本质磨损度),日常使用应≤100,超过150的高磨料款只适合偶尔重度去渍,长期使用会磨损牙釉质导致牙齿更黄更敏感
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80%
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Long-term
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Unverified选择牙齿抛光粉时优先看RDA值(相对牙本质磨损度),日常使用应≤70为安全,超过100属于高磨损,仅限偶尔去顽固色斑,长期用会磨薄牙釉质93% similarUnverified看RDA值(相对牙本质磨损度):日常使用应≤100,敏感牙或牙龈萎缩者选≤70;活性炭牙膏多数RDA超过150,长期用会磨损牙釉质92% similarUnverified看RDA磨损值:日常美白牙膏应选RDA≤100,敏感牙选RDA≤70;活性炭牙膏RDA常达120-150,长期用会磨损釉质暴露牙本质反而更黄90% similarUnverified美白牙膏看RDA(相对牙本质磨损值):RDA≤70为低磨损适合日常,70-100中等,>150对牙釉质有磨损风险不宜长期使用;牙齿敏感或牙釉质薄者应选RDA<7089% similarUnverified抛光膏RDA值(相对牙本质磨损度)越高清洁效果越强但磨损越大:RDA<70为低磨损适合每日,70-100中等每周1-2次,>150应仅由牙医使用,选购时应确认耗材适配的抛光膏RDA标注89% similar
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