A cavity in anyone’s tooth, baby or adult, can cause pain and, worse, infection. Having a cavity filled stops the pain and prevents possible infection. Also, if your baby or toddler has cavities, it can cause him or her to have difficulty chewing food, causing a variety of negative consequences. The bottom line is that you want your baby’s teeth to remain as healthy as possible because it promotes a smoother, healthier process as permanent teeth emerge.
Untreated cavities mean higher levels of harmful bacteria. If permanent teeth begin to erupt in a high-bacteria environment, cavities and other problems are more likely for them as well. Also, decayed baby teeth or baby teeth that are removed too soon can lead to problems with permanent teeth, such as crowding. This can increase the need for braces or other orthodontal work later on.