Unverified85% confidenceDecision RuleTime unknown
牙缝较宽或有牙龈退缩者应选膨胀型海绵线(如expanding floss)或牙线棒配宽间距设计,普通细线清洁面积不足难以刮除邻面菌斑
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85%
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Long-term
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Unverified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90% 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89% 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88% similar
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