Restorative dentistry is the practice of restoring decayed teeth to their healthiest state, in terms of both functionality and appearance. Restorative dentistry also involves the repair or replacement of damaged and imperfect teeth.

Before any intervention is attempted, an x-ray of the area is taken. If a recent x-ray is available, the dentist will review it to establish a treatment plan. Once the problem has been identified, the area will be frozen and the dentist will clean out the decay. Finally, a filling will be used to seal and protect the part of the tooth that was removed (the cavity).