Nigerian Journal of Clinical Practice

ORIGINAL ARTICLE
Year
: 2019  |  Volume : 22  |  Issue : 11  |  Page : 1475--1482

Evaluation of shear bond strength of zirconia-based monolithic CAD-CAM materials to resin cement after different surface treatments


B Altan1, S Cinar2, B Tuncelli1 
1 Department of Prosthodontics, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
2 Department of Prosthodontics, Faculty of Dentistry, University of Health Sciences, Istanbul, Turkey

Correspondence Address:
Dr. B Altan
Department of Prosthodontics, Faculty of Dentistry, Istanbul University, Istanbul
Turkey

Objective: To compare the shear bond strength of resin cement to zirconia-based monolithic CAD-CAM materials subjected to different surface treatments. Methods: 2 brands of monolithic zirconia blocks (Vita YZ HT, Sirona inCoris TZI), yttrium-stabilized tetragonal zirconia (IPS e.max ZirCAD) and zirconia-reinforced lithium silicate ceramic (Vita Suprinity) were divided into six groups according to the surface treatment received: no treatment (control), HF acid etching, sandblasting, sandblasting + Er:YAG laser irradiation, Er:YAG laser irradiation and CoJet. Composite resin cylinders were bonded to blocks with self-adhesive resin cement (Theracem). Shear bond strength was evaluated after thermocyling. Failure modes were examined using SEM. Data was analyzed statistically by using 2-way ANOVA and post-hoc Tukey's test (P < 0,05). Results: The bond strength was significantly affected by the surface treatment and the type of CAD-CAM blocks (P < 0,001). Surface treatment with CoJet revealed significantly higher bond strength compared to sandblasting in Y-TZP and monolithic zirconia specimens. Conclusions: Monolithic zirconia blocks showed higher bond strength values compared to Y-TZP zirconia block in sandblasting and CoJet groups. HF acid etching is more effective than sandblasting and CoJet for Vita Suprinity.


How to cite this article:
Altan B, Cinar S, Tuncelli B. Evaluation of shear bond strength of zirconia-based monolithic CAD-CAM materials to resin cement after different surface treatments.Niger J Clin Pract 2019;22:1475-1482


How to cite this URL:
Altan B, Cinar S, Tuncelli B. Evaluation of shear bond strength of zirconia-based monolithic CAD-CAM materials to resin cement after different surface treatments. Niger J Clin Pract [serial online] 2019 [cited 2019 Dec 5 ];22:1475-1482
Available from: http://www.njcponline.com/article.asp?issn=1119-3077;year=2019;volume=22;issue=11;spage=1475;epage=1482;aulast=Altan;type=0