Results 71 to 80 of about 801,241 (216)
Frontiers in Bioengineering and BiotechnologyBackgroundTo evaluate the effects of curing modes on the micro-tensile bond strength and durability of 6 different dual curing resin cements to dentin.Methods84 human molars were divided into 7 groups (n = 12), and were further distributed into two ...
Zimeng Li +4 more
doaj +1 more source
Numerical and experimental analyses of resin infusion manufacturing processes of composite materials [PDF]
Journal of Composites Materials 46, 13 (2012) 1617-1631, 2012 Liquid resin infusion (LRI) processes are promising manufacturing routes to produce large, thick, or complex structural parts. They are based on the resin flow induced, across its thickness, by a pressure applied onto a preform/resin stacking. However, both thickness and fiber volume fraction of the final piece are not well controlled since they result
arxiv +1 more source
Contraction gradient induced microcracking in hardened cement paste [PDF]
Cement and Concrete Composites 33/4 (2011) p. 466-473, 2015 Drying induced cracking of concrete surfaces and repair layers is a common problem. A principal cause for this type of cracking is the moisture and resulting contraction gradient that develops in the cement paste matrix upon drying. This phenomenon has been experimentally quantified in unconfined hardened cement paste samples using a fluorescent resin ...
arxiv
Journal of Applied Oral Science, 2015 Resin-based cements have been frequently employed in clinical practice to lute indirect restorations. However, there are numerous factors that may compromise the clinical performance of those cements.
Grace DE SOUZA +3 more
doaj +1 more source
Modelling and simulation of acrylic bone cement injection and curing within the framework of vertebroplasty [PDF]
, 2013 The minimal invasive procedure of vertebroplasty is a surgical technique to treat compression fractures of vertebral bodies. During the treatment, liquid bone cement gets injected into the affected vertebral body and therein cures to a solid. In order to investigate the treatment and the impact of injected bone cement, an integrated modelling and ...
arxiv +1 more source
Thermal Conductivities and Mechanical Properties of Epoxy Resin as a Function of the Degree of Cross-linking [PDF]
arXiv, 2021 Epoxy resins are widely used polymer matrices for numerous applications. Despite substantial advances, the molecular-level knowledge-base required to exploit these materials to their full potential remains limited. A deeper comprehension of structure/property relationships in epoxy resins at the molecular level is critical to progressing these efforts.
arxiv
Liquid-Solid Phase Transition Alloy as Reversible and Rapid Molding Bone Cement [PDF]
arXiv, 2013 Bone cement has been demonstrated as an essential restorative material in the orthopedic surgery. However current materials often imply unavoidable drawbacks, such as tissue-cement reaction induced thermal injuries and troublesome revision procedure.
arxiv
Journal of Applied Oral Science, 2016 Objective: To evaluate the influence of an application technique of a glass-fiber post using self-adhesive resin cements on the push-out bond strength and the presence of bubbles in the root thirds.
A. P. R. V. Pedreira +6 more
semanticscholar +1 more source
Curing and post-curing luminescence in an epoxy resin [PDF]
arXiv, 2006 A spontaneous luminescence is reported when epoxy resin samples are heated in air. This phenomenon is very sensitive to the nature of the atmosphere. The same treatment in nitrogen leads to an extinction of the luminescence. The emission process is restored when samples are kept for a sufficient time in air.
arxiv
Influence of Resin Cements on Color Stability of Different Ceramic Systems.
Brazilian Dental Journal, 2017 The purpose of this study was to evaluate color stability of two dental ceramics cemented with two resin cements, assessing the color difference (ΔE00) by the measurement of L*, a*, b*, c* and h* of transmittance.
R. B. Rodrigues +5 more
semanticscholar +1 more source