Unverified80% confidenceDecision RuleTime unknown
儿童乳牙间隙较小，优先选择线径细（约0.5mm以下）的膨胀型（PTFE或含微蜡）牙线，避免使用成人粗线卡在牙缝导致牙龈出血
1
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80%
Confidence
Long-term
Relevance
-
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Unverified儿童牙缝普遍较窄，应选择线径≤0.5mm的超细牙线或膨胀型（PTFE）牙线，普通蜡质牙线线径0.6-0.8mm易卡顿并把邻面推开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87% 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86% similarUnverified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85% similarUnverified线材较细且含蜡，对儿童窄小牙缝友好不易卡线，但对牙缝较大的换牙期儿童清洁力可能不足84% similar
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