Garth said the kids would be so engaged in the game, they would let her brush their teeth as long as she needed to.

"That's the thing with summer - at my house especially . . .there are no rules, you can stay up as late as you want, watch movies and don't have to take a shower - but you still have to brush your teeth," Garth said.

Garth said it's time for parents to reinforce brushing habits as kids get ready to go back to school because poor oral health has been linked to a number of diseases
Jennie Garth's tips to keep kids' teeth healthy

Actress Jennie Garth thinks it's important to teach kids healthy habits right from the get-go, as she likes to say.

"They are not going to learn it anywhere else," she told FoxNews.com. "So many kids are not taught about the importance of proper brushing, and they end up missing school, they have bad self-esteem, so many diseases, (which) are caused by bad oral health."