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Bond strength of cemented fiber posts to teeth with simulated internal root resorption

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Bond strength of cemented fiber posts to teeth with simulated internal root resorption

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dc.contributor.author Abreu, Ricardo-Toledo es
dc.contributor.author Monteiro, Jaiane-Bandoli es
dc.contributor.author Abu-Hasna, Amjad es
dc.contributor.author Santos, Thaís-da Silva-Alves es
dc.contributor.author Dal Piva, Amanda-Maria-de Oliveira es
dc.contributor.author Pucci, Cesar-Rogerio es
dc.contributor.author Torres, Carlos-Rocha-Gomes es
dc.contributor.author Carvalho, Cláudio-Antonio-Talge es
dc.date.accessioned 2020-10-22T11:50:34Z
dc.date.available 2020-10-22T11:50:34Z
dc.date.issued 2020 es
dc.identifier.citation Abreu, Ricardo-Toledo ; Monteiro, Jaiane-Bandoli ; Abu-Hasna, Amjad ; Santos, Thaís-da Silva-Alves ; Dal Piva, Amanda-Maria-de Oliveira ; Pucci, Cesar-Rogerio ; Torres, Carlos-Rocha-Gomes ; Carvalho, Cláudio-Antonio-Talge. Bond strength of cemented fiber posts to teeth with simulated internal root resorption. En: Journal of Clinical and Experimental Dentistry, 12 3 2020: 277-284 es
dc.identifier.uri https://hdl.handle.net/10550/76023
dc.description.abstract Teeth with internal root resorption (IRR) have guarded prognosis, considering that IRR defect could influence on the post bond strength. The aim of this study was to evaluate the bond strength and the bond interface between different glass fiber-reinforced posts (FRP) after cementation in teeth with simulated internal root resorption (IRR). Forty-five (45) human premolar roots with simulated IRR were embedded in acrylic resin blocks and cross-sectioned into two segments, enabling them to be re-approximated by screws. Intracanal medication was inserted for 15-days, removed by passive ultrasonic irrigation (PUI) and examined by stereomicroscopy. The push-out bond strength of two fiber reinforced composite posts (Rebilda Post - RP) and Rebilda Post GT ? GT, (VOCO) were evaluated at the cervical and IRR regions (n = 20). And, the bonded interface between resin cement and root dentine was analysed by scanning electron microscopy (SEM). 62.5% of IRR were not completely cleaned by PUI. Bond strength values at the cervical region (9.8 and 14.6 MPa) were higher than the IRR region (6.3 and 4.2 MPa). Micrographies showed bubbles in the cement and spaces in the bonded interface. RP post showed better bond strength at the cervical region while GT had better bond strength at the IRR region. es
dc.title Bond strength of cemented fiber posts to teeth with simulated internal root resorption es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.56568 es
dc.type.hasVersion VoR es_ES

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