Placeholder Image

字幕列表 影片播放

  • Our topic for today is Structure of a Tooth.

  • Our teeth help us to grind, chew, bite, etc.

  • Hurry up. Everybody is waiting for you.

  • Coming.

  • I am Mr. Tooth.

  • I have come from dental town.

  • The visible part above the gum is called the crown.

  • While I was showering.

  • I realized.

  • My crown has a whitish covering. It's called the enamel.

  • It is the hardest substance in the body.

  • You have come here to give a lecture.

  • Let us study Structure of a Tooth.

  • This is Dentin.

  • The layer below the enamel is called the dentin.

  • It forms the bulk of the tooth.

  • It is not as hard as the enamel.

  • This is Pulp.

  • The soft portion inside the dentin is called the pulp.

  • It consists of blood vessels and nerves.

  • The entire part of the tooth which is not visible and is inside the gum is called the root.

  • This is the Structure of a Tooth.

  • Wow. Great job.

  • Autograph, please.

Our topic for today is Structure of a Tooth.

字幕與單字

單字即點即查 點擊單字可以查詢單字解釋

B2 中高級 美國腔

孩子們的牙齒結構 | #aumsum (Tooth Structure for Kids | #aumsum)

  • 37 8
    AumSum 發佈於 2021 年 01 月 14 日
影片單字