[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

判断咬胶硬度是否安全的通用经验法则:用指甲能在表面压出轻微痕迹、或能轻微弯折的属安全硬度;坚硬到无法弯折或指甲无痕(如骨头、鹿角、过硬尼龙)则可能导致牙齿断裂

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Long-term
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