Document Classification

Section Type: METHODS

Text: Alumina-reinforced feldspathic ceramic blocks (Vitadur-alpha) (N = 30) were randomly divided into three groups according to the repair method : PR-Porcelain Repair Kit (Bisco) [etching with 9. 5 % hydrofluoric acid + silanization + adhesive] ; CJ-CoJet Repair Kit (3M ESPE) [(chairside silica coating with 30microm SiO (2) + silanization (ESPE) - Sil) + adhesive (Visio-Bond)] ; CL-Clearfil Repair Kit [diamond surface roughening, etching with 40 % H (3) PO (4) + Clearfil Porcelain Bond Activator + Clearfil SE Bond)].