Unverified90% confidenceDecision RuleTime unknown
刷毛磨圆率是核心安全指标，选购时优先看包装标注磨圆率≥60%（优质产品可达80%以上），未磨圆的毛丝末端呈刀切状会划伤牙釉质和牙龈
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified刷毛磨圆率是关键指标，国标要求磨圆率≥60%，优质刷头达70-80%，磨圆率低的刷毛末端锋利会划伤牙龈搪瓷层89% similarUnverified刷毛磨圆率≥60%才能有效避免刷毛尖端划伤牙龈和牙釉质，优质牙刷磨圆率可达80%以上，购买时可看包装是否标注'磨圆处理'或'end-rounded'89% similarUnverified刷毛磨圆率≥80%才算合格软毛牙刷，磨圆率越高对牙龈损伤越小，优质产品可达90%以上，购买时可查看包装是否标注'刷毛端部磨圆处理'88% similarUnverified刷毛磨圆率≥80%才能避免刺激牙龈，高端软毛牙刷磨圆率可达90%以上，购买时优先选包装标注磨圆率的产品87% similarUnverified刷毛磨圆率≥80%才能有效避免刷毛尖端划伤牙龈和牙釉质，优质牙刷磨圆率可达90%以上，购买时关注产品是否标注磨圆率87% similar
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