[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

刷毛磨圆率是关键安全指标,优质牙刷磨圆率应≥60%(高端产品≥80%),磨圆率低的刷毛切面锋利会损伤牙龈牙釉质,国标要求普通牙刷≥30%、儿童牙刷≥60%

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Long-term
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