Effects of Two Different Acid Etching and Surface Washing Methods on Bond Strength on Different CAD-CAM Blocks under Aging Protocols

Aim. The purpose of this study is to investigate the effects hydrofluoric acid and one-component ceramic primer silane (Monobond Etch Prime (MEP)) applications on lithium disilicate glass ceramics zirconium-infiltrated silicate ceramics, as well effect ultrasonic phosphoric surface washing methods bond strength. Materials Method. A total 240 samples were prepared using two different CAD-CAM material blocks with a thickness 2 mm made glass-ceramic (IPS e.max CAD) (Celtra Duo). cemented composite discs (Tetric N-Ceram) after treatments, processes applied them. As such, 24 groups formed, each applications, three processes, blocks, aging procedures ( n = 10 ). Following application acid, are used. These HF only (HF + W), US), PA), MEP (MEP PA). dual cure adhesive cement (Multilink Automix) determined treatments blocks. After SEM analysis was conducted. exposure thermal procedures, long-term (TL) short-term (TS), strengths measured an Instron universal test device. SPSS version 23.0 software used perform statistical analyses. Histogram graphs Kolmogorov-Smirnov/Shapiro-Wilk assess variables’ conformity normal distribution. Results. strength values TS TL in Celtra Duo block significantly higher than those CAD id="M2"> p < 0.05 TS-TL bonding value difference measurements block. While highest US for id="M3"> 20.07 ± .31 , terms when compared other groups. Conclusion. demonstrated short long cycle material. In general, bonded less affected by treated MEP.