Toothpaste (or tooth powder) — the paste or powder used to clean teeth. Commonly refers to the tube paste used for daily oral hygiene.
旅行用に小さい歯磨き粉をバッグに入れておいた。
I put a small tube of toothpaste in my bag for the trip.
子ども向けのフルーツ味の歯磨き粉は、歯磨きを嫌がる子に便利だ。
Fruit-flavored toothpaste for children is handy for kids who resist brushing their teeth.
知覚過敏用の歯磨き粉を使ったら、冷たいものがしみにくくなった。
After using toothpaste for sensitive teeth, cold things bothered me less.