Even if baby teeth fall out over time, it's important to take care of them just like your permanent teeth. Baby teeth play an important role in a child's health and well-being. Brush your teeth twice a day, floss every day, and have regular checkups with a pediatric dentist, starting around age one. What's even more harmful, however, is the potential for cavities to spread from baby teeth to incoming permanent teeth.
In short, cavities in baby teeth must be filled if you want your children to avoid the pain of tooth decay and the many long-term problems it could cause. If your child has cavities in their baby teeth, simply ask the dentist about the developing permanent tooth and how the different treatment options will affect it. The overall goal is to ensure that the permanent teeth are healthy and in the right position for your child's long-term health.