CEREC® treatment procedure means: No conventional impressions The CEREC® 3D measuring camera scans the prepared tooth in just a few seconds. This eliminates the need for impressions No Temporary Fillings or Crowns CEREC® restorations are milled out of a solid ceramic block in approximately 30 minutes. They are then ready to be placed immediately. This eliminates the need for temporary fillings and crowns. No long waiting periods Because CEREC® restorations can be placed immediately you will only need one appointment.