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- Title
Evaluation of mold-enclosed shear bond strength between zirconia core and porcelain veneer.
- Authors
Kwang-Hyun SONG; Yong-Woon IM; Jung-Hwan LEE; Jonghyuk LEE; Hae-Hyoung LEE
- Abstract
This study aimed to evaluate the mold-enclosed shear bond strength (ME-SBS) of zirconia to veneering porcelain with different surface treatments. Colored or uncolored zirconia coupons were either highly polished or airborne-particle abraded. The specimens were divided into groups with/without application of liner. Veneering porcelain was fired into an alumina ring mold on the zirconia coupons. The assembled specimens were subjected to the ME-SBS test. The mean ME-SBS for groups ranged from 7-10 MPa with no significant difference (p>0.05). A three-way ANOVA showed that coloring and surface roughening of the zirconia specimen had no significant influence on the ME-SBS value, but liner application exhibited a significant effect with a minor decrease in the MESBS (p=0.049). Surface treatments (coloring, airborne-particle abrasion, and liner application) were found to not cause a significant increase to the zirconia-porcelain bond strength. The application of zirconia liner had a slight negative influence on the ME-SBS results.
- Subjects
DENTAL veneers; BOND strengths; ZIRCONIUM oxide; PORCELAIN; DENTAL metallurgy
- Publication
Dental Materials Journal, 2018, Vol 37, Issue 5, p783
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2017-339