Unverified88% confidenceDecision RuleTime unknown
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
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified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91% similarUnverified牙缝紧密（正畸后或天生牙齿排列紧）选含蜡（waxed）扁线，蜡层降低摩擦更易滑入；牙缝较宽者选无蜡（unwaxed）线，纤维散开可更好包裹牙面清洁面积更大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91% similar
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