How to Stop Cavities in Kids: 7 Proven Tips for Parents Cavities are one of the most common chronic conditions in children—but the good news is, they’re largely preventable. With the right habits, diet choices, and dental support, parents can help their children avoid the pain, expense, and long-term issues that come with tooth decay. In this guide, we’ll walk you through 7 proven strategies to prevent cavities in kids, based on recommendations from pediatric dentists and leading dental associations. 1. Start