Results 21 to 30 of about 521,402 (361)
The Journal of Advanced Prosthodontics, 2019 PURPOSE To evaluate the effect of surface treatments and repair materials on the shear bond strength and to measure the fracture toughness of CAD/CAM provisional restoration materials. MATERIALS AND METHODS Four CAD/CAM (3D printing: Nextdent C&B and ZMD-
Ki-Won Jeong, Sunghuen Kim
semanticscholar +1 more source
口腔疾病防治, 2021 Objective To explore the effects of two hemostatic agents on the bonding strength of different bonding systems in primary tooth dentin. Methods Seventy-two retained deciduous teeth were randomly selected.
GAO Ye +4 more
doaj +1 more source
The effect of mechanical strain on properties of lubricated tablets compacted at different pressures [PDF]
Powder Tech. 301 (2016) 657-664, 2016 A full factorial design of experiments was used to study the effect of blend shear strain on the compaction process, relative density and strength of pharmaceutical tablets. The powder blends were subjected to different shear strain levels (integral of shear rate with respect to time) using an ad hoc Couette shear cell.
arxiv +1 more source
Shear-induced memory effects in boehmite gels [PDF]
J. Rheol. 66, 91-104 (2022), 2021 Colloidal gels are formed by the aggregation of Brownian particles into clusters that are, in turn, part of a space-spanning percolated network. In practice, the microstructure of colloidal gels, which dictates their mechanical properties, strongly depends on the particle concentration and on the nature of their interactions.
arxiv +1 more source
Journal of Clinical and Experimental Dentistry, 2019 Background Recently patients need faster treatments, and delaying restoration is not possible following bleaching treatment. The purpose of this study was to determine the effect of antioxidants, namely 10% sodium ascorbate, 10% alpha-tocopherol, 10 ...
Diatri Nari-Ratih, Andina Widyastuti
semanticscholar +1 more source
Effect of nematic ordering on the elasticity and yielding in disordered polymeric solids [PDF]
Journal of Polymer Science Part B: Polymer Physics 55 (23),
1760-1769, 2017, 2018 The relation between elasticity and yielding is investigated in a model polymer solid by Molecular-Dynamics simulations. By changing the bending stiffness of the chain and the bond length, semicrystalline and disordered glassy polymers - both with bond disorder - as well as nematic glassy polymers with bond ordering are obtained.
arxiv +1 more source
Dental Press Journal of Orthodontics, 2017 Introduction: Plaque accumulation and bond failure are drawbacks of orthodontic treatment, which requires composite for bonding of brackets. As the antimicrobial properties of TiO2 nanoparticles (NPs) have been proven, the aim of this study was to ...
A. Sodagar +6 more
semanticscholar +1 more source
Concrete-to-concrete bond strength. Influence of the roughness of the substrate surface [PDF]
, 2004 An experimental study was performed to evaluate the bond strength between two concrete layers, for different techniques for increasing the roughness of the substrate surface.
Branco, Fernando A. B. +2 more
core +1 more source
Elastic modulus and yield strength of semicrystalline polymers with bond disorder are higher than in atomic crystals [PDF]
Journal of Physics and Chemistry of Solids 118, 40-46, 2018, 2018 We perform thorough molecular-dynamics simulations to compare elasticity and yielding of atomic crystals and model semicrystalline polymers, the latter characterized by very similar positional ordering with respect to atomic crystals and considerable bond disorder. We find that the elastic modulus, the shear yield strength and the critical yield strain
arxiv +1 more source
Dental journal, 2019 These days, new prosthodontic materials are appearing with the development of digitalization. Among these, the use of polyetheretherketone (PEEK) as the clasp of removable partial dentures has been proposed.
Kosuke Kurahashi +3 more
semanticscholar +1 more source