Unverified85% confidenceDecision RuleTime unknown
牙龈萎缩、牙根暴露人群应选不含研磨剂或RDA值低于70的温和型牙龈膏,高研磨剂会加速磨损暴露的牙根面(牙本质硬度远低于牙釉质)
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85%
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Long-term
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Unverified牙周问题人群牙龈往往退缩、牙根暴露,应选择RDA值≤70的低研磨牙膏,避免高摩擦剂磨损暴露的牙本质加重敏感,RDA超过100的美白型牙膏不适合牙周患者日常使用92% similarUnverified清洁力(去牙菌斑)越强的牙膏摩擦剂RDA值越高,但RDA过高(>100)会磨损暴露的牙根,牙龈萎缩者应选RDA中低(≤70)的温和配方88% similarUnverified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88% similarUnverified牙本质暴露/牙龈退缩严重者不建议用RDA值>100的高清洁力美白牙膏,长期高磨损会进一步磨薄暴露的牙本质,形成恶性循环86% similarUnverified牙膏摩擦值(RDA)<70为低磨损,适合牙龈萎缩/牙本质敏感人群;RDA 70-100为中等日常清洁;>150长期用会磨损牙釉质86% similar
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