Results 121 to 130 of about 604,923 (170)
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Warpage produced by soldering with dental solders and gold alloys
Journal of Prosthetic Dentistry, 1954Abstract To summarize the results of all of these trials, it can be said that the more precise the fit of the parts to be soldered, the less they will be distorted.This is true whether the joints considered are of wires or of bars. The amount of solder used to produce the joint is important.The less solder used to produce the union, the less the ...
exaly +3 more sources
Soldering of dental alloys under vacuum by IR-heating
Dental Materials, 1986Abstract Voids in dental gold soldered connectors act as initiation points for cracks, which lead to fatigue fracture and decreased strength of dental prostheses. The formation of voids frequently can be linked to such improper soldering techniques as the use of flux, wrong type of solder or a gas-flame as heat source.
L Wictorin
exaly +3 more sources
Phase transformation in a dental gold alloy for soldering
Journal of Alloys and Compounds, 1997Abstract The phase transformation behaviour during continuous heating in a dental gold alloy for soldering was investigated by resistivity measurements, hardness tests, SEM and TEM observations. Three stages were recognized. The first two stages correspond to the formation of an L1 os phase by the migration of the quenched in excess vacancies and ...
Kunihiro Hisatsune
exaly +2 more sources
Journal of Dental Research, 1949
IF published data are taken as a basis for judgment, gold solders for dental use have apparently been given less attention than any other type of gold alloy used in dentistry. In all probability this class of materials has received far more consideration than a survey of the literature would indicate, since there have been many changes in the types of ...
N O, TAYLOR, C K, TEAMER
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IF published data are taken as a basis for judgment, gold solders for dental use have apparently been given less attention than any other type of gold alloy used in dentistry. In all probability this class of materials has received far more consideration than a survey of the literature would indicate, since there have been many changes in the types of ...
N O, TAYLOR, C K, TEAMER
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Strength Mechanisms of Dental Solder Joints
Journal of Dental Research, 1974Derivations of the triaxial state of stress and relative strain rate within the solder agree with the types of strengthening found in soft lead-tin solder butt joints. But for the dental gold casting alloys and hard gold solders tested, joint strengths were only influenced by porosity and not by size or rate of testing.
E P, Lautenschlager +3 more
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An investigation of tensile strength of dental solder joints
The Journal of Prosthetic Dentistry, 1979Tensile specimens of dental solder joints were tested to determine the effect of gap distance on the strength of solder joints. Two dental alloys were used; a Type III gold alloy and a gold-palladium (Au-Pd) alloy. The Type III alloy was joined with the recommended gold solder.
E J, Rasmussen +2 more
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The Journal of Prosthetic Dentistry, 1991
Six nickel-chromium (Ni-Cr) alloys joined with two solders were evaluated for degree of corrosion after they were immersed in corrosive solution for 100 days. The corroded surface of the Ni-Cr alloy and the cross section of the soldered joint were observed and the solution of nickel and copper (Cu) ions in each combination was measured.
N, Shigeto +3 more
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Six nickel-chromium (Ni-Cr) alloys joined with two solders were evaluated for degree of corrosion after they were immersed in corrosive solution for 100 days. The corroded surface of the Ni-Cr alloy and the cross section of the soldered joint were observed and the solution of nickel and copper (Cu) ions in each combination was measured.
N, Shigeto +3 more
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The Journal of Prosthetic Dentistry, 1989
The corrosion properties of contact between six Ni-Cr alloys and two dental solders were evaluated. Ni-Cr alloys with low Cr content coupled with silver solder induced continuous galvanic current, whereas Ni-Cr alloys with high Cr and some Mo content coupled with silver or gold solder induced galvanic current for a short time.
N, Shigeto +3 more
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The corrosion properties of contact between six Ni-Cr alloys and two dental solders were evaluated. Ni-Cr alloys with low Cr content coupled with silver solder induced continuous galvanic current, whereas Ni-Cr alloys with high Cr and some Mo content coupled with silver or gold solder induced galvanic current for a short time.
N, Shigeto +3 more
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Comparative tensile strengths of nonnoble dental alloy solders
The Journal of Prosthetic Dentistry, 1985M ost casting and soldering techniques currently used in dentistry were developed specifically for dental gold alloys. The newer base metal or nonnoble alloys have higher melting ranges and other characteristics that differ from those of gold alloys. Practical application and routine use of these alloys have drawn varied and often conflicting reports ...
W G, Kaylakie, C E, Brukl
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