Clinical evaluation of anterior crowns fabricated from CAD/CAM resin blocks

Abstract

 The purpose of this study was to evaluate the clinical effectiveness of anterior crowns fabricated from CAD/CAM resin blocks. Total 12 CAD/CAM resin crowns were luted with adhesive resin cement, and clinical assessment was performed average of 18.7 months after cementing. 10 clinical criterion were as follows: marginal adaptation, surface texture, contact with the adjacent tooth, occlusion contact, attrition of CAD/CAM crown, discoloration and staining, plaque attachment, recurrent caries, gum inflammation, and occlusal wear of antagonistic tooth. No CAD/CAM resin crowns were observed with crack, fracture, and debonding after cementing. A little rough weather and disappearance of the luster was seen in 8.3% (1 case). Slight discoloration and staining was seen in 8.3% (1 case). It was suggested that CAD/CAM resin blocks are clinically acceptable for anterior crowns.