歯は糞くそ

noun

dental plaque

Refers to the soft, sticky film that forms on teeth. Often used in everyday conversation; the more formal medical term is 歯垢 (しこう).

See also: 歯垢

• 歯は糞くそがたまると虫むし歯ばになりやすい。

  If dental plaque builds up, you're more likely to get cavities.

• 歯は医い者しゃで歯は糞くそを取とってもらった。

  I had the dental plaque removed at the dentist.