Effect of metal primers on the bond strength of resin cement to Co-Cr alloy.

Autor:	Aranda Garcia de Souza EH; Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, Brazil., Berger SB; Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, Brazil., Carlesse Paloco EA; Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, Brazil., Caixeta RV; Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, Brazil., Moretto TS; Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, Brazil., Lopes MB; Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, Brazil., Gonini A Jr; Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, Brazil., Guiraldo RD; Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, Brazil - rdguiraldo@gmail.com.
Jazyk:	angličtina
Zdroj:	Minerva stomatologica [Minerva Stomatol] 2019 Oct; Vol. 68 (5), pp. 259-264.
DOI:	10.23736/S0026-4970.19.04210-9
Abstrakt:	Background: To evaluate the effects of adhesive systems and primer systems on microshear bond strength of chemically activated resin cemented to Co-Cr cast dental alloy. Methods: Seventy-two rectangular blocks of Co-Cr metal alloy were manufactured and air-abraded with 50-μm Al2O3 particles. Metal primers (alloy primer [AP] or Clearfil ceramic primer [CP]) and adhesives (Adper Scotchbond Multi-Purpose Adhesive activated by Adper Scotchbond Multi-Purpose Adhesive Catalyst [SASC], or Primer & Bond 2.1 activated by Self Cure Activator [PBCA]) were applied and subsequently divided into six groups (SASC; AP+SASC; CP+SASC; PBCA; AP+PBCA; CP+PBCA; N.=12). Then, resin cement (Enforce) was applied. Data about microshear bond strength values were statistically evaluated by analysis of variance and Tukey's test. Results: The bond strength was lower (P<0.001) in groups with adhesive system alone (SASC and PBCA) compared with groups with addition of primers alloy primer (AP+SASC and AP+PBCA) and ceramic primer (CP+SASC and CP+PBCA). Conclusions: The application of primers improves the bond strength of the cement resin to the Co-Cr metal alloy.
Databáze:	MEDLINE
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