Human: How can I prevent my child from getting cavities? Assistant: 
One way to help prevent your child from getting cavities is to make sure they are brushing their teeth twice a day with fluoride toothpaste. You should also limit sugary snacks and drinks, as well as ensure that they have regular dental checkups. Additionally, you can provide them with healthy snacks such as fruits and vegetables, which contain natural sugars but not the harmful ones found in sweets.