[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

针对牙本质敏感,认准含硝酸钾(5%)或氯化锶的漱口水,其中硝酸钾通过阻断牙神经传导起效,需连续使用2-4周才有明显效果,属于'累积生效'而非即时止痛

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