[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

折叠式牙刷刷头收纳时刷毛藏于手柄内可避免污染,比套帽式牙刷卫生性更好,但铰链结构反复折叠3-6个月易松动导致刷头晃动

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80%
Confidence
Long-term
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