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Article: Dental Resin-Zirconia Bonding Promotion Using High-Silica PVD Coating with High Ionization Sputtering Processing

TitleDental Resin-Zirconia Bonding Promotion Using High-Silica PVD Coating with High Ionization Sputtering Processing
Authors
Keywordsphysical vapor deposition (PVD)
zirconia
tribochemical silica coating (TSC)
shear bond strength (SBS)
thermo-cycling
Issue Date2019
PublisherMDPI AG. The Journal's web site is located at http://www.mdpi.com/journal/coatings
Citation
Coatings, 2019, v. 9 n. 3, p. article no. 182 How to Cite?
AbstractPurpose: To evaluate the effect of high-silica coating deposited by high-silica physical vapor deposition (PVD) as a chemical bonding method on resin-zirconia bond strength under different aging conditions. Methods: Twelve Y-TZP blocks were used as the substrates. Four resin cement stubs were bonded on each Y-TZP block, with a total number of 48 resin cement stubs. Two test groups (n = 24) were evaluated: conventional Tribochemical silica-coating (TSC) and high-silica PVD with high ionization sputtering processing. Experimental silane primer (MPS) was brushed over the surface treated Y-TZP blocks, then a polyethylene mold was placed over the coated Y-TZP blocks and filled with the adhesive resin cement, then light-cured for 40 s. The shear bond strength (SBS) was then evaluated in dry condition and after thermo-cycling for 6000 cycles. Surface roughness, mode of failure, surface topography and elemental analysis were also evaluated. Results: In dry condition, PVD-coated zirconia specimens showed significantly higher mean SBS values (11.7 ± 1.3 MPa) compared to TSC (10.2 ± 1.1 MPa) (p = 0.027). The SBS values of TSC and PVD-coated samples after thermo-cycling were higher than in dry condition, but with no statistical significant difference (p > 0.05). Tetragonal-to-monoclinic phase transformation was detected in TSC, but not in PVD-coated zirconia. Significant decrease in surface roughness of PVD samples compared to TSC samples (p < 0.001). The silica content in PVD coating was 51% as detected by EDX. Conclusions: High-silica PVD coating on zirconia can give a reliable resin-zirconia chemical bond without any phase transformation and surface destruction by conventional grit-blasting
Persistent Identifierhttp://hdl.handle.net/10722/278098
ISSN
2018 Impact Factor: 2.33
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorAbdalla, MM-
dc.contributor.authorLung, CYK-
dc.contributor.authorTsoi, JKH-
dc.contributor.authorMatinlinna, JP-
dc.date.accessioned2019-10-04T08:07:27Z-
dc.date.available2019-10-04T08:07:27Z-
dc.date.issued2019-
dc.identifier.citationCoatings, 2019, v. 9 n. 3, p. article no. 182-
dc.identifier.issn2079-6412-
dc.identifier.urihttp://hdl.handle.net/10722/278098-
dc.description.abstractPurpose: To evaluate the effect of high-silica coating deposited by high-silica physical vapor deposition (PVD) as a chemical bonding method on resin-zirconia bond strength under different aging conditions. Methods: Twelve Y-TZP blocks were used as the substrates. Four resin cement stubs were bonded on each Y-TZP block, with a total number of 48 resin cement stubs. Two test groups (n = 24) were evaluated: conventional Tribochemical silica-coating (TSC) and high-silica PVD with high ionization sputtering processing. Experimental silane primer (MPS) was brushed over the surface treated Y-TZP blocks, then a polyethylene mold was placed over the coated Y-TZP blocks and filled with the adhesive resin cement, then light-cured for 40 s. The shear bond strength (SBS) was then evaluated in dry condition and after thermo-cycling for 6000 cycles. Surface roughness, mode of failure, surface topography and elemental analysis were also evaluated. Results: In dry condition, PVD-coated zirconia specimens showed significantly higher mean SBS values (11.7 ± 1.3 MPa) compared to TSC (10.2 ± 1.1 MPa) (p = 0.027). The SBS values of TSC and PVD-coated samples after thermo-cycling were higher than in dry condition, but with no statistical significant difference (p > 0.05). Tetragonal-to-monoclinic phase transformation was detected in TSC, but not in PVD-coated zirconia. Significant decrease in surface roughness of PVD samples compared to TSC samples (p < 0.001). The silica content in PVD coating was 51% as detected by EDX. Conclusions: High-silica PVD coating on zirconia can give a reliable resin-zirconia chemical bond without any phase transformation and surface destruction by conventional grit-blasting-
dc.languageeng-
dc.publisherMDPI AG. The Journal's web site is located at http://www.mdpi.com/journal/coatings-
dc.relation.ispartofCoatings-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectphysical vapor deposition (PVD)-
dc.subjectzirconia-
dc.subjecttribochemical silica coating (TSC)-
dc.subjectshear bond strength (SBS)-
dc.subjectthermo-cycling-
dc.titleDental Resin-Zirconia Bonding Promotion Using High-Silica PVD Coating with High Ionization Sputtering Processing-
dc.typeArticle-
dc.identifier.emailLung, CYK: cyklung@hku.hk-
dc.identifier.emailTsoi, JKH: jkhtsoi@hku.hk-
dc.identifier.emailMatinlinna, JP: jpmat@hku.hk-
dc.identifier.authorityTsoi, JKH=rp01609-
dc.identifier.authorityMatinlinna, JP=rp00052-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3390/coatings9030182-
dc.identifier.scopuseid_2-s2.0-85069767642-
dc.identifier.hkuros306323-
dc.identifier.volume9-
dc.identifier.issue3-
dc.identifier.spagearticle no. 182-
dc.identifier.epagearticle no. 182-
dc.identifier.isiWOS:000464283600002-
dc.publisher.placeSwitzerland-
dc.identifier.issnl2079-6412-

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