字幕表 動画を再生する 英語字幕をプリント It's AumSum Time Why do our teeth turn yellow? Because our teeth need some color in their lives. No. Our teeth basically consist of three parts. The outermost part is enamel. Enamel is white in color. Beneath the enamel, there is dentine. It is yellow in color. Then comes the part called pulp, which has blood vessels and nerves. Is this the same pulp found in our fruit juices? No. Please concentrate. When we drink or eat acidic fruits and beverages like lemon, orange juice, soft drinks, etc., They erode or wear away the enamel exposing the yellow dentine and thus, making teeth appear yellow. However, did you know that some people's teeth are naturally yellowish? This is because in such people, the layer of enamel is thin causing the yellow color of the dentine to appear more clearly. Thus, making their teeth appear naturally yellow.
B2 中上級 米 私たちの歯はなぜ黄色くなるのか?| 歯が黄色くなるのはなぜ? (Why do our teeth turn yellow? | #aumsum) 20 4 AumSum に公開 2021 年 01 月 14 日 シェア シェア 保存 報告 動画の中の単語