[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

3岁以下幼儿应选振动频率≤16000次/分钟的软性声波牙刷或电动U型牙刷,超过此频率对乳牙牙釉质和牙龈刺激过大

1
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82%
Confidence
Long-term
Relevance
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