Avaliação de restaurações CAD-CAM com técnica simplificada: estudo clínico longitudinal prospectivo

Abstract

The purpose of this study was to evaluate the clinical performance through the success and survival rates of feldspathic ceramics (CEREC blocs) CAD-CAM (computer-aided design - computer aided manufacturing) restorations, made with a simplified technique. A sample with anterior and posterior CAD-CAM feldspathic ceramics crowns was evaluated. The restorations were carried out using CEREC omnicam system to produce indirect restorations without sintering or glaze. A new evaluation criteria (the UERJ criteria) was used for the clinical evaluation of the indirect restorations. Scores were also measured to assess patient satisfaction. A total of 56 crowns were inserted in 40 patients and evaluated for 2 years. Nine reparable complications were observed. No failures or irreparable complications were observed in the crowns. No significant association was found between age, gender, periodontal status, parafunctional habits and tooth type with the success and survival rate. The 2-year survival and success rates were 10.7% and 89.3% respectively. The overall mean of patient satisfaction was 9.7. CAD-CAM feldspathic crowns made with a simplified technique showed a high success rate after 2 years in function and proved to be a simple restorative treatment option, with high performance and patient satisfaction. The high success rate of CAD-CAM technology in feldspathic ceramics observed with this technique suggests resolubility, speed and reduced cost, in the rehabilitative treatment of a high-demand service.