Results 21 to 30 of about 801,241 (216)
In vitro cytotoxicity of different dental resin-cements on human cell lines
Adhesive resin-cements are increasingly used in modern dentistry. Nevertheless, released substances from resin materials have been shown to cause cellular toxic effects.
Freya Diemer+6 more
semanticscholar +1 more source
Segmentation of pores within concrete-epoxy interface using synchronous chemical composition mapping and backscattered electron imaging [PDF]
The method of assessing porosity using images from scanning electron microscopy is ineffective in situations where the substrate and the coating have a significantly different average atomic number, which results in a different contrast of backscattered electrons.
arxiv +1 more source
Objective The aim of this study was to review the selection criteria of resin cements for different types of partial coverage restorations (PCRs) and investigate if the type of restorations or restorative materials affect the type of selected resin ...
Safoura Ghodsi+4 more
doaj +1 more source
Introduction: The bioactivity property of pulp capping materials is determined by the hydroxyl ion release ability, which may alter the environmental pH to become alkaline.
Denny Nurdin+3 more
doaj +1 more source
Effect of Storage Time on Microtensile Bond Strength of Self-Adhesive and Multi-Step Resin Cements to Dentin [PDF]
The purpose of this study was to evaluate the effects of long-term storage on the microtensile bond strength (µTBS) to dentin of two self-adhesive and three multi-step resin cements.
Edilausson Moreno Carvalho+5 more
doaj +1 more source
Argon Broad Ion beam sectioning and high resolution scanning electron microscopy imaging of hydrated alite [PDF]
Scanning electron microscopy (SEM) imaging is able to visualize micro- to nano-structures of cement and concrete. A prerequisite is that the sample preparation preserves the native structure of the specimen. In this study, argon Broad Ion Beam (BIB) sectioning is compared to state-of-the-art sample preparation (resin embedding, polishing) for hydrated ...
arxiv +1 more source
The physics of cement cohesion [PDF]
Cement is one of the most produced materials in the world. A major player in greenhouse gas emissions, it is the main binding agent in concrete, to which it provides a cohesive strength that rapidly increases during setting. Understanding how such cohesion emerges has been a major obstacle to advances in cement science and technology.
arxiv +1 more source
The objective was to evaluate the color stability of ceramic veneers luted with resin cements and pre-heated composite resins (60oC) for 12 months, and determine the degree of conversion (DC) of the luting agents.
B. P. Gugelmin+5 more
semanticscholar +1 more source
Well Cement Degradation and Wellbore Integrity in Geological CO2 Storages: A Literature Review [PDF]
Carbon capture and storage (CCS) has emerged as the most effective method to curb the CO2 concentration in the atmosphere. It can store up to 5 billion tons of CO2 per year. To guarantee a safe and economical geological storage, the well cement degradation and wellbore integrity need to be studied thoroughly.
arxiv +1 more source