[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

刷毛顶端应经过磨圆处理(磨圆丝),可用手指轻触感受无扎手感或对着光看刷毛尖端是否呈圆头;未磨圆的直切刷毛会划伤牙龈,是廉价儿童牙刷常见问题

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85%
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Long-term
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