Unverified90% confidenceFactTime unknown
属于膨胀纤维材质牙线，干燥时为扁平状便于进入牙缝，遇唾液后纤维膨胀变宽以增大接触面积进行清洁
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
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Unverified膨胀型牙线（如Oral-B Glide类）遇唾液后纤维会略微膨胀增加接触面积，兼顾窄牙缝滑入和宽区域清洁，适合牙缝宽窄不均者88% similarUnverified含膨胀纤维（如海绵线）的牙线适合牙缝较大或换牙期儿童，遇唾液膨胀可增大清洁接触面，但对牙缝紧密的乳牙反而难以通过86% similarUnverified线材遇唾液后膨胀变蓬松呈带状，能覆盖更大的牙面区域，适合牙冠修复体、牙桥及种植牙周围的清洁82% 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81% 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80% similar
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