Unverified85% confidenceDecision RuleTime unknown
牙周炎或牙龈退缩导致牙缝变宽的人群，应选膨胀型牙线（如海绵线/蓬松线）而非普通细线，接触面积更大清洁效率更高
1
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85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified牙缝较宽或有牙周病导致牙缝增大的用户不适合，细线在宽缝中清洁效率不如扁线或膨胀线牙线92% similarUnverified如果你有牙周病导致的牙龈退缩、牙缝变大，或佩戴牙桥/种植体需要清洁较宽间隙，优先考虑这类膨胀型牙线而非普通牙线92% 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91% similarUnverified膨胀型牙线（干燥时细、遇唾液膨胀变粗）适合牙缝较大者，能更充分填充清洁；牙缝紧者用膨胀线反而更难通过90% similarUnverified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90% similar
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