Produção Nacional
Effect of active application of self-etching ceramic primer on the long-term bond strength of different dental CAD/CAM materials
2021; Medicina Oral S.L.; Linguagem: Inglês
10.4317/jced.58723
ISSN1989-5488
AutoresJoão Paulo Mendes Tribst, Pedro Jacy Santos Diamantino, M. Freitas, I. Tanaka, Laís Regiane Silva-Concílio, Renata Marques de Melo, G.F.S.A. Saavedra,
Tópico(s)Dental Implant Techniques and Outcomes
ResumoThe 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.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).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.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.
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