Results 61 to 70 of about 93 (89)
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Glass, Ceramics and Enamelled Objects
2021Much like weapons, vessels made from glasses and ceramics have long been held as objects of very high technology. Ceramic technology mastery is even at the foundation of metallurgy. In producing glass, pottery and enamelled metals, three critical and energy intensive steps are needed: obtaining fine powder, firing, and building appropriate kilns ...
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Bioactive glass ceramic can improve the bond strength of sealant/enamel?
European Archives of Paediatric Dentistry, 2019Evaluate the influence of enamel pre-treatment using Biosilicate, associated or not to other treatments; on the bond strength (BS) of pit-and-fissure sealant, with or without saliva contamination.Ninety slices (4 mm × 4 mm) were obtained from 30 bovine incisors.
R E, Silveira +4 more
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Tensile bond strengths of dual-cured cements between a glass-ceramic and enamel
The Journal of Prosthetic Dentistry, 1998Dual-cured cements have been used with castable ceramic restorations, but the tensile bond strengths of these materials have not been thoroughly researched.This study compared the tensile bond strengths between Dicor castable ceramics and enamel of four dual-cure cements: Twinlook, Optec Dual-Cure Luting Cement, Clearfil CR Inlay, and Dual Cement ...
J C, Chang +3 more
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Reduced wear of enamel with novel fine and nano-scale leucite glass-ceramics
Journal of Dentistry, 2013Leucite glass-ceramics used to produce all-ceramic restorations can suffer from brittle fracture and wear the opposing teeth. High strength and fine crystal sized leucite glass-ceramics have recently been reported. The objective of this study is to investigate whether fine and nano-scale leucite glass-ceramics with minimal matrix microcracking are ...
Theocharopoulos, Antonios +3 more
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Glass ceramic enamels with increased conductivity
Glass and Ceramics, 2000Based on crystallizing alkaline boron-titanium-silicate glasses with oxide additives of the R2O type, ground and cover chemically stable enamels for steel have been developed, which exhibit high chemical resistance and high electrical conductivity.
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Mixed crystallisation modes in glass-ceramic enamel
Journal of Materials Science, 1972The crystallisation of a glass-ceramic enamel system in which two modes of crystallisation are observed is described in some detail. During the coating fusion, uncontrolled, spontaneous devitrification of kalsilite occurs throughout the glass. In a post heat treatment process a controlled, intentionally nucleated crystallisation of the matrix occurs ...
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Synthesis and investigation of white glass-ceramic enamel coatings for steel products
Glass Physics and Chemistry, 2017The results of the synthesis and study of white glass-ceramic enamel coatings for the protection of steel products based on R2O–RO–B2O3–Al2O3–SiO2–TiO2–P2O5–F–system are considered. A number of glass-enamel compositions is developed. The crystallization features are revealed for white covercoat glassceramic enamel coatings; and the conditions ...
A. V. Ryabova +4 more
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Wear behavior of human enamel against lithium disilicate glass ceramic and type III gold
The Journal of Prosthetic Dentistry, 2014The wear behavior of human enamel that opposes different prosthetic materials is still not clear.The purpose of this in vitro study was to investigate and compare the friction and wear behavior of human tooth enamel that opposes 2 indirect restorative materials: lithium disilicate glass ceramic and Type III gold.Friction-wear tests on human enamel (n=5)
Ahreum, Lee +3 more
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Wear quantification of human enamel and dental glass–ceramics using white light profilometry
Wear, 2010Abstract The aim of this study was to develop a protocol for quantifying wear using white light profilometry. Human molar cusps and glass–ceramic disc (Ceramco-3, Ceramco, USA) surfaces were digitised using a non-contact profilometer (Proscan-2000, Scantron, UK) with an S16/3.5 white light sensor (Stil-S.A., France), before and after in vitro wear ...
A. Theocharopoulos +3 more
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The Journal of Prosthetic Dentistry, 2014
Demand is increasing for ceramic and composite resin posterior restorations. However, ceramics are recognized for their high abrasiveness to opposing dental structure.The purpose of this study was to investigate the wear of enamel as opposed to dental ceramics and composite resin.Twenty-four test specimens (antagonists), 6 each of monolithic zirconia ...
Jeerapa, Sripetchdanond +1 more
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Demand is increasing for ceramic and composite resin posterior restorations. However, ceramics are recognized for their high abrasiveness to opposing dental structure.The purpose of this study was to investigate the wear of enamel as opposed to dental ceramics and composite resin.Twenty-four test specimens (antagonists), 6 each of monolithic zirconia ...
Jeerapa, Sripetchdanond +1 more
openaire +2 more sources