[KongchangAI]
Unverified90% confidenceFactTime unknown

活性炭洁牙粉的美白原理是物理吸附色素而非漂白,只能改善外源性色素沉积(茶渍、烟渍、咖啡渍),对牙齿本身发黄(内源性)无效,不要期待改变牙齿基色

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90%
Confidence
Long-term
Relevance
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