An 8-year follow-up study of Cerec2 computer aided design and computer aided manufacture of all-ceramic crowns / 中华口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To evaluate the clinical performance of the crowns made by Cerec2 computer aided design and computer aided manufacture (CAD/CAM) system.</p><p><b>METHODS</b>Twenty four teeth were restored with Cerec2 CAD/CAM crowns. Eight years after delivery of the prostheses, the all-ceramic crowns were evaluated using modified standard of California Dental Association quality evaluation system. Patients filled out a satisfaction questionnaire at the same time. And Kaplan-Meier analysis was carried out.</p><p><b>RESULTS</b>Three out of 24 restorations were rated as failure. Kaplan-Meier analysis showed that the success rate of Cerec2 crowns eight year following delivery was 88%.</p><p><b>CONCLUSIONS</b>Crowns made by Cerec2 CAD/CAM system can survive in oral condition and function well for 8 years.</p>