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Fracture strength of porcelain veneer on surface-treated zirconia.
- Source :
- Dental Materials Journal; 2024, Vol. 43 Issue 2, p263-268, 6p
- Publication Year :
- 2024
-
Abstract
- In this study, we investigated the effects of surface treatment on the fracture strength of porcelain-veneered zirconia. Highly translucent 4 mol% yttria-stabilized zirconia disks (KATANA HT, Kuraray Noritake Dental) were divided into three surface-treatment groups: 1) as-sintered, 2) alumina sandblasted, and 3) ground. Crystallographic and surface-roughness analyses were conducted for each group. Veneering ceramics (Cerabien ZR, Kuraray Noritake Dental) were applied to the zirconia surfaces. The fracture strengths of the porcelain-veneered zirconia disks were measured using biaxial flexural-strength tests. Crystallographic analysis revealed that grinding and sandblasting increased the fractions of the monoclinic and rhombohedral zirconia phases. The ground specimens had a higher surface roughness than the sandblasted specimens. Weibull analysis showed no significant differences in biaxial flexural strength among the three groups. The results suggest that these surface treatments do not affect the fracture strength of porcelainveneered zirconia. [ABSTRACT FROM AUTHOR]
- Subjects :
- FRACTURE strength
ZIRCONIUM oxide
SURFACE preparation
FLEXURAL strength
PORCELAIN
Subjects
Details
- Language :
- English
- ISSN :
- 02874547
- Volume :
- 43
- Issue :
- 2
- Database :
- Supplemental Index
- Journal :
- Dental Materials Journal
- Publication Type :
- Academic Journal
- Accession number :
- 177888875
- Full Text :
- https://doi.org/10.4012/dmj.2023-139