[KongchangAI]
Unverified85% confidenceTradeoffTime unknown

洁牙效果越强(硬度越高、咀嚼时间越长)越易磨损牙釉质及造成断牙风险;纯软质安全但基本无机械洁牙作用,需在硬度与安全间权衡

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85%
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Long-term
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