Microshear bond strength of dual-cure resin cement in zirconia after different cleaning techniques: an in vitro study
Fecha
2021
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Korean Academy of Prosthodontic
Resumen
PURPOSE. This study aimed to compare the microshear bond strength (p.SBS) of dual-cure resin cement in CAD-CAM zirconia after different cleaning techniques. MATERIALS AND METHODS. Fifty discs of zirconia-based ceramic from Ivoclar Vivadent were embedded in acrylic resin. The discs were divided into five groups according to the cleaning methods used: Group 1: drying with spraying + sandblasting with Al2O3; Group 2: washed with water and dried with spraying + sandblasting with Al2O3; Group 3: washed with distilled water and dried with spraying + sandblasting with Al2O3 + zirconium oxide (Ivoclean); Group 4: washed with distilled water and dried with spraying + sandblasting with Al2O3 + potassium hydroxide (Zirclean); and Group 5: washed with distilled water and dried with spraying + sandblasting with Al2O3 + 1% NaClO. All of the groups were contaminated with artificial saliva for 1 minute and then cleaned. Statistical analyses were performed using ANOVA and Tukey's tests. RESULTS. There were statistically significant differences among all groups for p.SBS (P<. 05). The group treated with zirconium oxide (Group 3) showed the highest p.SBS (18.75 ± 0.23 MPa). CONCLUSION. When applied to zirconia, the cleaning methods affected the bonding with resin cement differently. [J Adv Prosthodont 2021;13:237-45] © 2021 The Korean Academy of Prosthodontics. All Rights Reserved.