Unverified88% confidenceDecision RuleTime unknown
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
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
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90% 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89% 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89% similar
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