[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

含草酸钾或氟化亚锡的封闭型凝胶通过物理堵塞牙本质小管,起效快(数分钟至数小时),适合突发性尖锐敏感,但封闭效果会因刷牙、进食逐渐脱落,需反复补涂

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