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/index.php/wonder/what-is-in-toothpaste.