Unverified85% confidenceDecision RuleTime unknown
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
1
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85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Related Claims
Unverified牙缝较宽或牙龈退缩者应选膨胀型（扁平/海绵型）线材而非圆形细线，扁线接触面大清洁效率高；圆形细线更适合正常至紧密牙缝94% similarUnverified牙缝较宽或有牙周问题者选膨胀型牙线（如扁平膨胀线/牙线绒），入水或摩擦后线体膨胀能更好刮除牙菌斑，普通细线清洁面积不足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（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90% similar
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