Unverified90% confidenceDecision RuleTime unknown
牙缝紧或牙齿排列拥挤者应选含蜡（waxed）扁线或PTFE膨体特氟龙线，含蜡涂层可降低摩擦阻力更易滑入牙缝，无蜡线易在紧牙缝中断丝卡住
1
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90%
Confidence
Long-term
Relevance
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Unverified牙缝紧密者应选含蜡（waxed）超细牙线，无蜡线在紧牙缝易起毛卡断；牙缝较宽或有牙周问题者选膨胀型（如PTFE/蓬松纤维线），入水后膨胀增大清洁面积92% similarUnverified牙缝正常或偏窄者选含蜡（waxed）扁平牙线，摩擦阻力小易通过接触点；牙缝宽或牙龈退缩者选膨胀型（PTFE/expanding floss）或无蜡粗线，清洁面积更大92% similarUnverified牙缝紧密（正畸或牙齿排列拥挤）优先选含蜡（waxed）细线，直径约0.4-0.5mm，蜡质涂层降低摩擦更易滑入，不易卡断；牙缝宽者可选膨胀型无蜡线或PTFE材质91% similarUnverified牙缝紧密（正畸后或天生牙缝小）优先选含蜡PTFE材质牙线，摩擦系数低易滑入，普通尼龙线在紧牙缝易断丝卡牙缝90% similarUnverified牙缝紧密或牙齿排列拥挤者应选含蜡牙线，含蜡涂层降低摩擦阻力更易滑入牙缝；牙缝正常或较宽者可用无蜡牙线，清洁面积大且触觉反馈清晰90% similar
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