WONDER #1315: What Is in Toothpaste?

Question 1 of 3

Which toothpaste ingredient helps to strengthen tooth enamel and repairs tooth decay through remineralization?

  1. fluoride
  2. humectants
  3. abrasives
  4. detergents

Question 2 of 3

Which of the following ingredients helps to keep toothpaste from drying out?

  1. abrasives
  2. detergents
  3. humectants
  4. flavorings

Question 3 of 3

Which of the following items was NOT used as toothpaste in ancient times?

  1. eggshells
  2. bark
  3. ashes
  4. rock

Check your answers online at https://www.wonderopolis.org/wonder/what-is-in-toothpaste.