Results 321 to 330 of about 53,272 (379)
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Amalgamation mechanism in dental amalgam alloys
Journal of Materials Science, 1987Model experiments to explore the amalgation mechanism in conventional Ag3Sn and high copper single-composition dental alloys have been conducted by rotating alloy roda in liquid mercury at different speeds and for different durations. After removing the rod from the mercury, the vacuum volatilization technique was used to accelerate the supersaturation
K.H. Lee +2 more
openaire +2 more sources
International Journal of Technology Assessment in Health Care, 1990
Toxicity implies an adverse effect. It may be caused by an overdose of any substance or combination of substances, either by an initial high dose or by the accumulation of a toxic substance over a long period of time. Thus, toxicity is dose dependent. It is also a relative term in that therisk involved must be evaluated and the available alternatives ...
Ivar A. Mjör, Per-Olof Glantz
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Toxicity implies an adverse effect. It may be caused by an overdose of any substance or combination of substances, either by an initial high dose or by the accumulation of a toxic substance over a long period of time. Thus, toxicity is dose dependent. It is also a relative term in that therisk involved must be evaluated and the available alternatives ...
Ivar A. Mjör, Per-Olof Glantz
openaire +3 more sources
Dental Materials, 1993
Chevron-notch fracture toughness, diametrical tensile strength and fractography were evaluated for bulk amalgams and for bonds formed between new and 1-day-old amalgams of the same type. Three types of bonded specimens were prepared: 1) by mechanically roughening the 1-day-old amalgam with 600-grit paper; 2) using a new mercury-rich amalgam; and 3 ...
M.S. Bapna, H.J. Mueller
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Chevron-notch fracture toughness, diametrical tensile strength and fractography were evaluated for bulk amalgams and for bonds formed between new and 1-day-old amalgams of the same type. Three types of bonded specimens were prepared: 1) by mechanically roughening the 1-day-old amalgam with 600-grit paper; 2) using a new mercury-rich amalgam; and 3 ...
M.S. Bapna, H.J. Mueller
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Interface corrosion in amalgam-to-amalgam and amalgam-to-nonprecious metal crown couplings
The Journal of Prosthetic Dentistry, 1986This study examined the contact surface area in the coupling of a class II amalgam restoration with another class II amalgam restoration or with a stainless steel or nickel-chrome crown in 1% NaCl solution. The characterization of interfaces was carried out by using SEM and EDX microanalysis.
Indru Punwani +4 more
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ACS Applied Materials and Interfaces, 2016
Direct electrodeposition of mercury onto gold nanorods on an ITO substrate, without reducing agents, is reported. The growth of single gold amalgam nanoalloy particles and subsequent stripping was monitored in real-time monitoring by plasmonic effects ...
Jun-Gang Wang +4 more
semanticscholar +1 more source
Direct electrodeposition of mercury onto gold nanorods on an ITO substrate, without reducing agents, is reported. The growth of single gold amalgam nanoalloy particles and subsequent stripping was monitored in real-time monitoring by plasmonic effects ...
Jun-Gang Wang +4 more
semanticscholar +1 more source
Oral Surgery, Oral Medicine, Oral Pathology, 1963
Abstract The compatibility of amalgam with oral tissues other than those of the tooth itself has been well demonstrated and accepted by the dental profession. We have revised the more common uses of amalgam as an adjunct to endodontic therapy and suggested a few that are not commonly employed, namely (1) restoration of a tooth prior to institution of
Carlos E. del-Rio, Walter E. Benson
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Abstract The compatibility of amalgam with oral tissues other than those of the tooth itself has been well demonstrated and accepted by the dental profession. We have revised the more common uses of amalgam as an adjunct to endodontic therapy and suggested a few that are not commonly employed, namely (1) restoration of a tooth prior to institution of
Carlos E. del-Rio, Walter E. Benson
openaire +3 more sources
Colorimetric Signal Amplification Assay for Mercury Ions Based on the Catalysis of Gold Amalgam.
Analytical Chemistry, 2015Mercury is a major threat to the environment and to human health. It is highly desirable to develop a user-friendly kit for on-site mercury detection.
Zhengbo Chen +5 more
semanticscholar +1 more source
Journal of Dental Research, 1988
The purpose of this study was to compare the relative cytotoxicity of amalgams and to determine whether their toxicity depends upon composition and aging time, by means of a rapid and sensitive in vitro cell culture test. Zinc-containing amalgams showed higher cytotoxicity than did any other amalgams.
Takao Hanawa +4 more
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The purpose of this study was to compare the relative cytotoxicity of amalgams and to determine whether their toxicity depends upon composition and aging time, by means of a rapid and sensitive in vitro cell culture test. Zinc-containing amalgams showed higher cytotoxicity than did any other amalgams.
Takao Hanawa +4 more
openaire +3 more sources
Dental Amalgam Stabilization by Selective Interfacial Amalgamation
Biomaterials, Medical Devices, and Artificial Organs, 1976The purpose of this investigation was to explore the feasibility of enhancing the electrochemical stability of dental amalgam restorations by a process of "selective interfacial amalgamation." If dental amalgam restorations can be selectively alloyed at the tooth-amalgam interface, to a minor thickness as compared with the dimensions of the bulk ...
F. K. Smith +2 more
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Analytical Chemistry, 2013
Heavy metal ion pollution poses severe risks in human health and the environment. Driven by the need to detect trace amounts of mercury, this article demonstrates, for the first time, that silver/mercury amalgamation, combining with DNA-protected silver ...
Li Deng +9 more
semanticscholar +1 more source
Heavy metal ion pollution poses severe risks in human health and the environment. Driven by the need to detect trace amounts of mercury, this article demonstrates, for the first time, that silver/mercury amalgamation, combining with DNA-protected silver ...
Li Deng +9 more
semanticscholar +1 more source