Unverified82% confidenceCautionTime unknown
美白型漱口水多依靠过氧化氢或焦磷酸盐去除表面色素，只能改善外源性着色，无法漂白牙齿本色，对咖啡/茶渍有效但期待整体变白会失望
1
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82%
Confidence
Long-term
Relevance
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Unverified不要用荧光增白剂处理过的'过分惨白'白T判断品质，长期反复水洗会导致增白剂流失后泛黄发暗，自然的乳白/本白色更耐久80% similarUnverified活性炭的吸附增白只对外源性色素（茶渍、烟渍、咖啡渍）有效，对四环素牙、氟斑牙等内源性变色完全无效，这类情况应选冷光美白或贴面而非牙膏80% similarUnverified不含过氧化物类漂白成分，无法改善内源性色素（如四环素牙、氟斑牙），仅能通过摩擦剂辅助去除茶渍/咖啡渍等外源性着色80% similarUnverified对四环素牙、氟斑牙等内源性着色基本无效，仅对外源性色素（咖啡、茶渍、烟渍）有一定改善作用79% similarUnverified活性炭成分有一定吸附表面色素能力，对茶渍、咖啡渍等外源性着色有轻度改善，但对内源性牙齿发黄基本无效78% similar
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