Shear bond strength of self-adhesive resin cements to base metal alloy

The Journal of Prosthetic Dentistry
Susan HattarMohammad Al-Rabab'ah

Abstract

Many self-adhesive cements have been introduced in the past few years, with little or no data regarding their clinical performance. This study investigated the shear bond strength of some recently introduced self-adhesive resin cements. The purpose of this study was to evaluate the shear bond strength of self-adhesive and conventional resin-based cements to a base metal alloy. Four groups (10-12 each) that comprised 3 self-adhesive cements (SmartCem2; RelyX Unicem; seT SDI) and a conventional resin-based cement (RelyX ARC) were tested. Cylindrical cement specimens (diameter, 3 mm; height, 3 mm) were applied to nickel-free base metal alloy (Sheradent) disks with a diameter of 12 mm, and the surface was treated with airborne-particle abrasion of 50 μm aluminum oxide. The metal disks were fixed in brass molds specifically designed for the shear bond test device. Test specimens were incubated at 37°C for 24 hours and then the shear bond was tested with a Zwick Roll testing machine at a 0.8 mm/min cross-head speed. In addition, bond failures were investigated and categorized as adhesive, cohesive, or mixed. Shear bond strengths were calculated by dividing the maximum debonding force over the cross-sectional area of each specimen. On...Continue Reading

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Citations

Feb 15, 2015·The Journal of Prosthetic Dentistry·Du-Hyeong LeeKyu-Bok Lee
Dec 17, 2016·Brazilian Dental Journal·Hilmo Barreto Leite FalcãoRossana Pereira de Almeida
Oct 30, 2018·The Journal of Advanced Prosthodontics·Fusun OzerMarkus Bernhard Blatz
Jun 20, 2020·Clinical Oral Investigations·Felicitas WiedenmannBogna Stawarczyk

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