Avaliação clínica retrospectiva de coroas confeccionadas por sistema CAD/CAM em diferentes materiais: 2 Anos de acompanhamento

Abstract

Clinicians nowadays have multiple options to choose the material and technic to obtain all-ceramic crown restorations. It is still important to consider the results of clinical studies for CAD/CAM restoration, determining the best option to obtain better clinical results. Restorations made by using computer-aided design and computer-aided manufacturing (CAD/CAM) systems have become popular nowadays. However, it is still important to understand, through clinical studies, the longevity and the problems related to several materials used to obtain these restorations. The purpose of this clinical study was to evaluate the survival rate of restorations obtained by CAD/CAM system in a private practice and to report the influence of material, luting cement and dental substrate used. All patients were treated with CAD/CAM restorations in a private practice clinic. Data from December 2011 to December 2013 were included, after an institutional review board approved protocol. Ninety-two patients were retrospective evaluated, consisting in 35 implant crowns and 162 dental ceramic crowns. The restorations were mostly considered accepted, without any clinical intervention. Within the limitations of this study, the CAD/CAM system produced all-ceramic restorations, with excellent clinical results, considering color, marginal adaptation, occlusion and contour. It was not possible to relate the substrate, filling material and cement in survival crowns made with CADCAM system.