In Vitro Fracture Resistance and Bond Strength of Self-Adhesively Luted Cast Metal and Fiber-Reinforced Composite Posts and Cores: Influence of Ferrule and Storage Time

Pomini, Marcos Cezar; Machado, Marina Molinari; Quadros, Giovanny de Paula; Gomes, Giovana Mongruel; Pinheiro, Lidia Olga Bach; Samra, Adriana Postiglione Bührer

doi:10.11607/ijp.5956

Cited by 3 publications

(1 citation statement)

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“…Each resin composite increment was photo activated for 20 s (Bluephase G2; Ivoclar Vivadent), and the crown delimitation was achieved with a #2135 drill (KG Sorensen). Based on previous work (12), the crowns were made with self-curing acrylic resin (Vipi Cril; Vipi, Pirassununga, SP, Brazil) in a silicone molds (Zetalabor; Zhermack, Rovigo, Italy) obtained from a premolar tooth. After finishing and polishing, the crowns were fixed with RelyX U200 self-adhesive resin cement (3M-ESPE) manipulated according to the manufacturer's recommendations.…”

Section: Tooth Crown Preparationmentioning

confidence: 99%

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

Piccolli¹,

Pfeifer²,

Fugolin³

et al. 2021

eor

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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 MethodsBovine roots were divided into six groups: RX-RU2 (RelyX CP + RelyX U200); PETMP-HDDI-RU2 (PETMP-HDDI + RelyX U200); PETMP-BDI-RU2 (PETMP-BDI + RelyX U200); RX-RU (RelyX CP + RelyX Ultimate); PETMP-HDDI-RU (PETMP-HDDI + RelyX Ultimate); PETMP-BDI-RU (PETMP-BDI + RelyX Ultimate). One slice from each root third (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. ResultsAmong 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. ConclusionExperimental 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 (MCDP) or adhesive (ADP) failure.

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Section: Tooth Crown Preparationmentioning

confidence: 99%

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

Piccolli¹,

Pfeifer²,

Fugolin³

et al. 2021

eor

Self Cite

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Fracture resistance and stress distribution of weakened teeth reinforced with a bundled glass fiber–reinforced resin post

et al. 2021

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In vitro fracture strength and modes of cast post and cores luted with self-adhesive resin-based cement

Pomini¹,

Machado

Quadros

et al. 2019

Braz. J. Oral Sci.

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Aim: Cast post and core (CPC) is the main used post type; however, the biomechanical behavior of CPCs adhesively luted to the dentin is still unclear. Therefore, we aimed to evaluate the fracture resistance (FR) and fracture modes of teeth restored with CPCs luted with zinc-phosphate (ZP) or resin-based self-adhesive (SA) cements, as well as the influence of the coronal remnant. Methods: For that, 24 human premolars were divided into four groups according to the cement (ZP or SA) and coronal remnant (with or without 2mm). FR was tested in a universal machine and data analyzed by two-way ANOVA and Tukey HSD (α=.05). Fracture modes were classified according to the degree of dental destruction. Results: The results showed that there was no difference in FR (p=.352); however, teeth without ferrule presented more irreparable fractures, specially in the ZP group. Conclusion: All in all, self-adhesion of CPCs does not enhance fracture resistance, however it reduces the number of irreparable fractures, compared to ZP cement.

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In Vitro Fracture Resistance and Bond Strength of Self-Adhesively Luted Cast Metal and Fiber-Reinforced Composite Posts and Cores: Influence of Ferrule and Storage Time

Cited by 3 publications

References 0 publications

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

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

Fracture resistance and stress distribution of weakened teeth reinforced with a bundled glass fiber–reinforced resin post

In vitro fracture strength and modes of cast post and cores luted with self-adhesive resin-based cement

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