Dental clinic near New bel road.., Dental Myth -Cavities in baby teeth don’t matter Many people think baby teeth don’t matter since they are eventually replaced by adult teeth, and while that’s true, those baby teeth need to be taken care of too! Tooth decay can begin as soon as those teeth erupt and decay can cause not only cavities, but pain for your child which can lead to trouble eating and in some cases undernourishment. Baby teeth are also “placeholders” for their adult teeth so it’s even more important that they are well taken care of so those adult teeth can come in properly.