[KongchangAI]
Unverified75% confidenceCautionTime unknown

不建议给3岁以下幼儿购买电动乳牙刷,其震动频率和刷头设计针对已具备牙釉质成熟度的年龄,过早使用可能刺激牙龈且孩子难以配合

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