The flexural strength and flexural modulus of an experimental metal-resin composite, which used Ag-In alloy particle as the filler, were evaluated. The effect of acid treatment and heat treatment on the Ag-In alloy particle was investigated. The flexural strength of the experimental metal-resin composites ranged from 65.5 MPa to 91.0 MPa. The flexural strength of the metal-resin composite increased with the temperature of the heat treatment until 350 degrees C, but its effect varied with the concentrations of HCl of the acid treatment. A metal-resin composite, which used acid-treated and 350 degrees C heat-treated Ag-In alloy fillers, matched the requirement of strength of ISO 4049. The average of flexural modulus of the experimental metal-resin composite was 9.1 GPa. The flexural modulus of the metal-resin composite did not vary with the treatment conditions of the metal filler. The flexural modulus of a metal-resin composite, which used Ag-In alloy particle as the filler, was lower than that of Ag-Sn alloy metal-resin composite, which was reported previously. However, the flexural strength of the Ag-In alloy metal-resin composite was similar to that of Ag-Sn alloy metal-resin composite. We can control a flexural modulus of a metal-resin composite without decreasing flexural strength by choosing filler materials.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.4012/dmj.21.181 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Assessing the Aesthetic Performance of CAD/CAM Provisional Restorative Materials: A Spectrophotometric Analysis.
Polymers (Basel)
September 2024
Health Sciences PhD Program, Universidad Católica de Murcia UCAM, Campus de los Jerónimos n°135, Guadalupe, 30107 Murcia, Spain.
Achieving color match between natural teeth and restorative materials is crucial in dentistry. Factors such as the light source, brightness, and opacity influence tooth color, determined by light absorption and scattering within the material. Advances in CAD/CAM systems have enhanced prosthodontic treatments, particularly with new temporary materials, but data on their color stability and masking ability remains limited.
View Article and Find Full Text PDFAnisotropic frontal polymerization in a model resin-copper composite.
Chaos
January 2022
Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, Illinois 61801, USA.
This work investigates experimentally and numerically frontal polymerization in a thermally anisotropic system with parallel copper strips embedded in 1,6-hexanediol diacrylate resin. Both experiments and multiphysics finite element analyses reveal that the front propagation in the thermally anisotropic system is orientation-dependent, leading to variations in the front shape and the front velocity due to the different front-metal strip interaction mechanisms along and across the metal strips. The parameters entering the cure kinetics model used in this work are chosen to capture the key characteristics of the polymerization front, i.
View Article and Find Full Text PDFWear and marginal quality of aesthetic crowns for primary molars.
Int J Paediatr Dent
March 2022
Department of Pediatric Dentistry, Medical Center for Dentistry, Justus-Liebig-University Giessen and University Medical Center Giessen and Marburg (Campus Giessen), Giessen, Germany.
Background: Due to limited aesthetics of stainless-steel crowns, the demand for tooth-coloured crowns has recently risen. Few studies have investigated the marginal integrity and wear behaviour of tooth-coloured primary molar crowns under subcritical load in vitro.
Aim: This in vitro study evaluated the marginal quality and wear of newly introduced resin composite and hybrid ceramic crowns compared with metal and zirconia crowns.
Characterization of three-point bending properties of metal-resin interpenetrating phase composites.
RSC Adv
April 2018
Department of Mechanical Engineering, University of Alberta Edmonton AB T6G1H9 Canada.
Metal-resin composites provide improved combinations of mechanical properties of raw materials. A novel metal-resin interpenetrating phase composite (IPCs) has been fabricated by spontaneously infiltrating unsaturated polyester resin into porous short-fiber preforms under vacuum conditions. In this study, three-point bending experiments are performed to characterize the bending properties of the IPCs.
View Article and Find Full Text PDFImmunogenicity and protective efficacy of a dual subunit vaccine against respiratory syncytial virus and influenza virus.
Immune Netw
December 2012
Division of Life & Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Korea.
Respiratory syncytial virus (RSV) and influenza virus are the most significant pathogens causing respiratory tract diseases. Composite vaccines are useful in reducing the number of vaccination and confer protection against multiple infectious agents. In this study, we generated fusion of RSV G protein core fragment (amino acid residues 131 to 230) and influenza HA1 globular head domain (amino acid residues 62 to 284) as a dual vaccine candidate.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!