Effect of active application of self-etching ceramic primer on the long-term bond strength of different dental CAD/CAM materials.

Autor:	Tribst JP; DDS, MSc, PhD, Department of Dentistry, University of Taubaté (UNITAU), Taubaté 12020-270, SP, Brazil., Diamantino PJ; DDs, MSc, PhD student, Department of Dental Materials and Prosthodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos, São Paulo, Brazil., de Freitas MR; DDS, MSc, PhD student, Department of Dentistry, University of Taubaté (UNITAU), Taubaté 12020-270, SP, Brazil., Tanaka IV; DDs, MSc, PhD student, Department of Dental Materials and Prosthodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos, São Paulo, Brazil., Silva-Concílio LR; DDS, MSc, PhD, Department of Dentistry, University of Taubaté (UNITAU), Taubaté 12020-270, SP, Brazil., de Melo RM; DDs, MSc, PhD, Department of Dental Materials and Prosthodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos, São Paulo, Brazil., Saavedra GS; DDs, MSc, PhD, Department of Dental Materials and Prosthodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos, São Paulo, Brazil.
Jazyk:	angličtina
Zdroj:	Journal of clinical and experimental dentistry [J Clin Exp Dent] 2021 Nov 01; Vol. 13 (11), pp. e1089-e1095. Date of Electronic Publication: 2021 Nov 01 (Print Publication: 2021).
DOI:	10.4317/jced.58723
Abstrakt:	Background: The objective of this in vitro study was to evaluate the effect of the active application of self-etching ceramic primer (ME&P) on the bond strength of different dental CAD/CAM materials (Lithium Disilicate ceramic (LD), Leucite ceramic (LE), Zirconia reinforced lithium silicate ceramic (ZLS), and Hybrid ceramic (HC)) with thermocycling aging. Material and Methods: The samples were randomly divided into 16 groups (n = 20). Dual resin cement cylinders were made and light cured for 10 s (1.200 mW/cm2) for the shear bond strength test. 3-way ANOVA revealed that the factors were statistically significant ( P < 0.05). Results: The aging process had a negative impact on the bond strength for all groups except for Lithium Disilicate, with active application. ZLS and LE showed promising results with high bond strength values for the ME&P active application; however, after aging the bond strength value was significantly reduced. HC showed reduced bond strength values regardless the ME&P application. Conclusions: In order to obtain a durable bond strength, the recommended protocol of 20 s of active application followed by 40 s of sitting time in the self-etching ceramic primer should be followed when using reinforced-glass ceramics as restorative materials. Key words: Dentistry, dental materials, silane, shear strength, computer-aided design. Competing Interests: Conflicts of interest None declared. (Copyright: © 2021 Medicina Oral S.L.)
Databáze:	MEDLINE
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