2022 Volume 14 Issue 3 Pages 237-243
CAD/CAM crowns were first covered by the insurance for premolars in April 2014, followed by molars and then anterior teeth in September 2020. CAD/CAM crowns have become an option for single crown prostheses.
A clinical evaluation of CAD/CAM crowns placed on 17 anterior teeth showed no crown loss after an average of 2 years and 8 months.
To improve the long-term survival rate of CAD/CAM crowns, it is necessary to ensure that the clinical procedure is based on the following four points: selection of a safe case, appropriate preparation for abutment tooth in the shape and volume, design to enhance adaptation, and bonding procedure. The inner surface of the crown is preferable to be abraded with alumina at 0.2 MPa, cleaned with phosphoric acid, application of ceramic primer containing silane coupling agent and MDP, and then bonded with resin cement.
