Evaluation of shear bond strength of zirconia-based monolithic CAD-CAM materials to resin cement after different surface treatments
Niger. j. clin. pract. (Online)
; 22(11): 1119-3077, 2019. ilus
Article
in English
| AIM
| ID: biblio-1267160
Responsible library:
CG1.1
ABSTRACT
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 + ErYAG laser irradiation, ErYAG 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
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Index:
AIM (Africa)
Main subject:
Therapeutics
/
Turkey
/
Computer-Aided Design
/
Resin Cements
Country/Region as subject:
Asia
Language:
English
Journal:
Niger. j. clin. pract. (Online)
Year:
2019
Type:
Article
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