[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

刷毛磨圆率是安全核心指标,儿童牙刷磨圆率应≥60%,优质产品可达70%以上,未磨圆的毛尖会划伤牙龈和牙釉质,选购时可查看检测报告或用手背轻扫感受是否扎手

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