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The Journal of the American Dental Association, 1968 The purpose of this study was to devise a method for measuring the adaptation of amalgam restorations to the cavity margin and to evaluate the influence of three factors on this adaptation.
David B. Mahler, John C. Mitchem
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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
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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
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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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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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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
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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
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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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European Journal of Oral Sciences, 1981
Abstract – The release of coppoer, mercury, silver, tin or zinc from conventional, dispersed phase and spherical high copper content amalgams immersed in artifucial saliva solutions for periods up to 30 d has been measured using nuclear tracer techniques. During initial corrosion, i.e.
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Abstract – The release of coppoer, mercury, silver, tin or zinc from conventional, dispersed phase and spherical high copper content amalgams immersed in artifucial saliva solutions for periods up to 30 d has been measured using nuclear tracer techniques. During initial corrosion, i.e.
openaire +3 more sources