Unverified85% confidenceDecision RuleTime unknown
牙缝较大或有牙龈退缩者应选膨体尼龙线（PTFE膨体/海绵型），入缝后横向膨胀能有效刮除较宽牙缝的软垢；用超细单丝线反而清洁效率低
1
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85%
Confidence
Long-term
Relevance
-
First Seen
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Related Claims
Unverified牙缝正常或偏窄者选PTFE（特氟龙）膨体线，不易起毛断裂；牙缝较大者选膨胀式尼龙线（如含蜡海绵线），进缝后膨胀更贴合清洁面92% similarUnverified牙缝较宽或有牙龈退缩者应选膨胀型（PTFE/海绵线）或扁平宽面牙线，接触面积大清洁效率高；用细单丝线反而清洁面积不足92% similarUnverified带涂层（如PTFE特氟龙涂层）牙线顺滑易过窄缝但可能残留纤维，膨胀型（PTFE扩展）牙线清洁面积大更适合正常牙缝，出血牙龈期优选顺滑涂层减少刺激92% similarUnverified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91% similarUnverified牙缝较宽或有牙龈退缩者应选膨胀型/海绵型牙线（如含蜡纤维束型），入缝后横向膨胀清洁面更大，普通细线清洁效率低90% similar
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