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Bond strengths of various resin cements to different ceramics
Farias, David Cardoso Sandes; Gonçalves, Letícia Machado; Walter, Ricardo; Chung, Yunro; Blatz, Markus Bernhard.
  • Farias, David Cardoso Sandes; Universidade CEUMA. Department of Dentistry. São Luís. BR
  • Gonçalves, Letícia Machado; Universidade CEUMA. Postgraduate Program in Dentistry. São Luís. BR
  • Walter, Ricardo; University of North Carolina. Department of Operative Dentistry. Chapel Hill. US
  • Chung, Yunro; Arizona State University. Department of Biomedical Informatics. Arizona Tempe. US
  • Blatz, Markus Bernhard; University of Pennsylvania. School of Dental Medicine. Department of Preventive and Restorative Sciences. Philadelphia. US
Braz. oral res. (Online) ; 33: e095, 2019. tab, graf
Article in English | LILACS | ID: biblio-1039305
ABSTRACT
Abstract This study evaluates the shear bond strength (SBS) of various resin cements to different ceramics. Composite resin cylinders of Z100 were fabricated and cemented to disks of feldspathic ceramic (Creation), leucite-reinforced feldspathic ceramic (Empress I), and densely sintered aluminum oxide ceramic (Procera AllCeram) using five resin cements Panavia F (PAN), RelyX ARC (ARC), RelyX Unicem (RXU), RelyX Veneer, and Variolink II. SBS was measured after three days of water storage (baseline) and after artificial aging (180 days of water storage along with 12,000 thermal cycles). Failure mode of fractured specimens also was evaluated. Data were analyzed with Kruskal-Wallis and Mann-Whitney tests (α=0.05). RXU showed 1) the lowest baseline median SBS to feldspathic ceramic, which was not statistically different from PAN; 2) the lowest median baseline SBS to leucite-reinforced feldspathic and densely sintered aluminum-oxide ceramics. All cements performed similarly after aging, except for ARC (median 0.0 MPa) and PAN (median 16.2 MPa) in the densely sintered aluminum-oxide ceramic group. Resin cements perform differently when bonded to different ceramic substrates. While all test resin cements worked similarly in the long-term to feldspathic and leucite-reinforced feldspathic ceramics, only the MDP-containing resin cement provided durable bonds to densely sintered aluminum-oxide ceramic.
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Full text: Available Index: LILACS (Americas) Main subject: Ceramics / Dental Bonding / Resin Cements Language: English Journal: Braz. oral res. (Online) Journal subject: Dentistry Year: 2019 Type: Article Affiliation country: Brazil / United States Institution/Affiliation country: Arizona State University/US / Universidade CEUMA/BR / University of North Carolina/US / University of Pennsylvania/US

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Full text: Available Index: LILACS (Americas) Main subject: Ceramics / Dental Bonding / Resin Cements Language: English Journal: Braz. oral res. (Online) Journal subject: Dentistry Year: 2019 Type: Article Affiliation country: Brazil / United States Institution/Affiliation country: Arizona State University/US / Universidade CEUMA/BR / University of North Carolina/US / University of Pennsylvania/US