Effect of different surface zirconium oxide treatments on binding strength between zirconia and veneering ceramics / 中南大学学报(医学版)
Journal of Central South University(Medical Sciences)
;
(12): 53-58, 2019.
Article
in Chinese
| WPRIM
| ID: wpr-813078
ABSTRACT
To compare the effect of three different surface zirconium oxide treatments on binding strength and fracture patterns between zirconia and veneering ceramics.
Methods:
A total of 40 zirconia specimens and 10 nickel-chromium alloy were divided into 5 groups (n=10 in each group) a treatment group by zirconium oxide sand-blaste (Group A), a zirconia bonded porcelain group (Group B), a hot-etching solution group (Group C), a non-treatment zirconia (Group D) and a non-treatment nickel-chromium alloy group (Group E). After all treatments, a veneering porcelain (4 mm×4 mm×2 mm) was formed onto the center of all substrate specimens by plastic coating method. Shear bond strength (SBS) test with a universal testing machine was used in each group. Scanning electron microscopy was used to observe the surface morphology of the damaged specimen interface, which was randomly selected from each group.Results:
The SBS test showed that there was no significant difference in SBS results between the Group A, the Group B and the Group D (both P>0.05), and both of them were significant less than that in the group E (both P<0.05). The SBS results in the Group C were significantly higher than that in the Group D, the Group A, and the Group B (all P<0.05), but there were no significant difference compared with that in the Group E (P<0.05).Conclusion:
Sand-blaste and liner application on zirconia ceramic contribute no effect to binding strength between zirconia and veneering ceramics, but hot-etching solution can increase the binding strength between zirconia and veneering ceramics.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Stress, Mechanical
/
Surface Properties
/
Zirconium
/
Materials Testing
/
Microscopy, Electron, Scanning
/
Ceramics
/
Dental Bonding
/
Shear Strength
/
Dental Stress Analysis
/
Dental Veneers
Language:
Chinese
Journal:
Journal of Central South University(Medical Sciences)
Year:
2019
Type:
Article
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