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Digital veneering system enhances microtensile bond strength at zirconia core-veneer interface
Cited 10 time in
Web of Science
Cited 9 time in Scopus
- Authors
- Issue Date
- 2014-12
- Citation
- Dental Materials Journal, vol.33 no.6, pp. 792-798
- Keywords
- 복합학 ; Microtensile bond strength ; Digital veneering system ; Adhesive failure ; Zirconia restoration ; Surface pretreatment
- Abstract
- This study investigated the effect of digital veneering system (DVS) on strengthening the bond between a zirconia core and ceramic veneer. Specimens for Groups 1 (negative control), 2 (positive control), 3, and 4 used conventional porcelain veneering technique on untreated, sandblasted, coloring agent-treated, and modifier-treated zirconia cores respectively. Group 5 used DVS, where glass ceramic veneers -produced by computer-aided milling- were fused to zirconia cores. Microtensile bond strengths (MTBS) at the interface were measured. MTBS results of Groups 1 to 5, expressed in mean (standard deviation), were 28.1 (7.3), 27.8 (6.3), 30.0 (10.2), 32.9 (8.1), and 37.8 (8.1) MPa. The DVS group had significantly higher MTBS than the negative and positive controls (p<0.05). Results showed that DVS enhanced the bond strength between zirconia core and ceramic veneer, indicating that this system could reduce adhesive failure-related complications that frequently occur at the zirconia core-veneer interface.
This study investigated the effect of digital veneering system (DVS) on strengthening the bond between a zirconia core and ceramic
veneer. Specimens for Groups 1 (negative control), 2 (positive control), 3, and 4 used conventional porcelain veneering technique on
untreated, sandblasted, coloring agent-treated, and modifier-treated zirconia cores respectively. Group 5 used DVS, where glass
ceramic veneers —produced by computer-aided milling— were fused to zirconia cores. Microtensile bond strengths (MTBS) at the
interface were measured. MTBS results of Groups 1 to 5, expressed in mean (standard deviation), were 28.1 (7.3), 27.8 (6.3), 30.0
(10.2), 32.9 (8.1), and 37.8 (8.1) MPa. The DVS group had significantly higher MTBS than the negative and positive controls (p<0.05).
Results showed that DVS enhanced the bond strength between zirconia core and ceramic veneer, indicating that this system could
reduce adhesive failure-related complications that frequently occur at the zirconia core-veneer interface.
- ISSN
- 0287-4547
- Language
- English
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