牙線不隻是清淨作用，更有按摩保健牙齦的作用，保護牙齒最重要的就是對牙齦的保健，至少每天早晚兩次用牙線清潔牙齒。

來源: danren 於 2025-02-16 20:35:56 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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