Adhesive strength of fiberglass posts treated with thio-urethane-based experimental silanes

Authors : Vitoria Massoneto PİCCOLLİ, Carmem Silvia PFEİFER, Ana Paula PİOVEZAN FUGOLİN, Marcos Cezar POMİNİ, Roberta Araujo DE PAULA RAMOS, Rafael Leonardo XEDİEK CONSANİ

Pages : 60-66

Doi:10.26650/eor.20210114

View : 18 | Download : 8

Publication Date : 2021-06-28

Article Type : Research Paper

Abstract :Purpose The aim of this study was to evaluate the adhesive bond strength of fiberglass posts treated with experimental silanes based on thio-urethane and submitted to thermo and mechanical cycles. Materials and Methods Bovine roots were divided into six groups: RX-RU2 insert ignore into journalissuearticles values(RelyX CP + RelyX U200);; PETMP-HDDI-RU2 insert ignore into journalissuearticles values(PETMP-HDDI + RelyX U200);; PETMP-BDI-RU2 insert ignore into journalissuearticles values(PETMP-BDI + RelyX U200);; RX-RU insert ignore into journalissuearticles values(RelyX CP + RelyX Ultimate);; PETMP-HDDI-RU insert ignore into journalissuearticles values(PETMP-HDDI + RelyX Ultimate);; PETMP-BDI-RU insert ignore into journalissuearticles values(PETMP-BDI + RelyX Ultimate);. One slice from each root third insert ignore into journalissuearticles values(n=10); was submitted to the push-out test and the values evaluated with R Program statistical analysis, while the failure pattern assessed in percentage. Results Among root thirds, RX-RU2 promoted greater strength at the cervical and apical thirds; PETMP-HDDI-RU2 showed highest values at the three thirds; and PETMP-BDI-RU2 was strongest at the apical third. RX-RU presented higher strength at the apical third, and PETMP-HDDI-RU and PETMP-BDI-RU had similar values at the three thirds. In each root third, PETMP-HDDI-RU2 showed similar strength at all thirds, and similar strength at the apical third was observed for other associations. Mixed and adhesive failures predominated. Conclusion Experimental silanes promoted different bond strength values in the adhesion of fiberglass posts to the root thirds, with better results for PETMP-HDDI silane. The root region did not influence the failure pattern and most slices showed mixed insert ignore into journalissuearticles values(MCDP); or adhesive insert ignore into journalissuearticles values(ADP); failure.
Keywords : Fiberglass post, Experimental silane, Resin cement, Adhesive strength, Failure pattern