You might want to monitor how much toothpaste your kids are using.
The Center for Disease Control and Prevention issued a warning on Friday saying almost 40 percent of kids aged 3 to 6 years old use more toothpaste than dentists recommend.
Swallowing too much fluoride can cause tooth discoloration.
The amount of toothpaste for kids this age should be no more than the size of a pea.
Source: https://www.nytimes.com/2019/02/03/science/too-much-toothpaste.html
