Restorative Dentistry refers to the restoration of decayed, damaged, or lost teeth. The most common needs for restorative dentistry are cavities, which are caused by bacteria in the mouth that produce acids that attack your teeth. In time, these acids dissolve the enamel on your teeth, causing a hole. Practicing good preventative dentistry can help prevent cavities in the first place. New City Dental Practice can evaluate patients and perform all of the following restorative dentistry procedures.