The decayed area of the tooth is first removed during the procedure. A mold of the tooth is then made and sent to a dental lab. They create a restoration made from porcelain, gold, or a composite resin. The restoration takes about 2-3 weeks to make, so a temporary inlay or onlay will be placed on the tooth for that time. During your next visit the inlay or onlay will be secured to your tooth with an adhesive resin cement. Your tooth will be back to looking and functioning like new.