When the harmful bacteria in your mouth feed on the sugars and food particles left in your mouth, they produce an acid that causes tooth decay or cavities. If our dentists and team diagnose you with a cavity, we will most likely recommend a dental filling to repair the tooth before further damage can occur. Fillings work to remove the decayed tooth structure and restore the health of your tooth. To learn more about dental fillings in Portland, Oregon, and schedule an appointment with Dr. Kaveendra Ranasinghe or Dr. Kirk Christianson, call Downtown Dental Care today at 503-227-1693.