objective: a clinical challenge of using zirconia frameworks is to achieve adequate bond with different substrates. this study aimed to evaluate the effect of bioglass and silica coating of zirconia substrates on microshear bond strength of resin cement to tetragonal zirconia. methods: this laboratory experimental study was conducted on zirconia discs. a total of 120 ytzp zirconia (zirkonzahn) ...

Effective improvement of the frost resistance concrete in cold regions is critical for durability airport pavement plateau. This paper intends to contribute a better knowledge effects combined air-entraining superplasticizer and surface treatments on against freezing-thawing salt freezing. First, an optimum mixing by considering w/c, cement content, sand ratio, was obtained comparing compressiv...

OBJECTIVES Encapsulated silane has been introduced in powders for tribochemical coating (SilJet Plus, SP), eliminating the need for a separate silane primer. The aim of the study was to comparatively evaluate the effect of SP on the surface properties and bond strength of a Co-Cr alloy with a resin composite. METHODS Co-Cr cast alloy disks were subjected to tribochemical treatments with CoJet...

This research presents new insights into the utilisation of waste glass powder in concrete pavements. Two different types were used as a partial replacement for sand: 10% neat (untreated) and silane-treated powder. The interfacial bonding properties, physical mechanical properties pavement assessed at 7 28 days. Results exposed reduction 5% 2% compressive flexural strengths, respectively, an in...

F) were purchased from Gelest Inc (Morrisville, PA). All chemicals were used as received without further purification. Paper (Gel Blot paper, Whatman#1, and Whatman#50) was purchased from GE Healthcare (NJ, USA) and used as received, without purification. The silanization reaction was conducted in a chamber with a volume of 0.01 m 3 at a temperature set at 95 °C. The silanizing reagent is trans...

With the increase in adult orthodontic treatment comes the need to find a reliable method for bonding orthodontic brackets onto metal or ceramic crowns and fixed partial dentures. In this study, shear bond strength and surface roughness tests were used to examine the effect of 4 different surface conditioning methods: fine diamond bur, sandblasting, 5% hydrofluoric acid, and silica coating for ...