Unverified88% confidenceDecision RuleTime unknown
牙缝紧密（正常/拥挤牙列）应选PTFE（特氟龙/膨体）材质超细牙线，直径≤0.5mm且截面扁平，尼龙线易卡断残留；牙缝较大或有牙周袋人群应选膨胀型（Expanding）牙线或牙线+牙缝刷组合
1
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88%
Confidence
Long-term
Relevance
-
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Unverified牙缝紧密者（正常/挤压式牙缝）应选含蜡牙线或PTFE线材，直径0.05mm以下更易滑入，无蜡线在紧牙缝易起毛断裂92% similarUnverified牙缝紧密（正畸后或天生牙列拥挤）应选含蜡或PTFE材质牙线，直径≤0.4mm，无蜡尼龙线易在紧牙缝卡断残留纤维92% similarUnverified乳牙牙缝普遍较紧密，应选择线径0.10-0.15mm的超细扁线（PTFE/特氟龙材质），普通成人牙线较粗易卡在乳牙间难以拉出91% similarUnverified牙缝紧密（正畸后或天生齿列拥挤）应选PTFE特氟龙线材，其滑度高、不易分叉卡断；牙缝正常或偏大可用尼龙含蜡线，性价比更高91% similarUnverified牙缝较小或牙齿排列紧密（正畸后/天生密集）应选PTFE（特氟龙）单丝线材，直径0.05mm以下且不易毛刺卡断；避免蜡质尼龙膨体线，后者遇窄缝易卡顿断丝91% similar
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