Results 131 to 140 of about 1,688 (181)
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Assembly of dental units by soldering
Journal of Prosthetic Dentistry, 1967T echniques for assembling dental splints and bridges require that the individual units be maintained in exact relationships during the manipulations necessary for joining them with solder. Some elements in these techniques can cause crown misalignment.
exaly +3 more sources
Distortion in dental soldering as affected by gap distance
Journal of Prosthetic Dentistry, 1980In identifying the criteria which influence soldering distortion, the results of this study indicate the following: 1. Linear distortion identified at the investment phase (a net increase in gap distance) is due to setting expansion of the plaster and soldering investment. 2.
Jack I Nicholls
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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.
T, Carlberg, 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 ...
K Hisatsune
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The Effect of Preceramic Soldering on Fracture Resistance of 4‐Unit Zirconia Fixed Dental Prostheses
Journal of Prosthodontics, 2022 Purpose Preceramic soldering of zirconia may deliver better fitting restorations. However, there is not sufficient evidence regarding the influence of preceramic soldering of zirconia restorations on mechanical strength.
Sabire Isler Deger +1 more
exaly +3 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
openaire +2 more sources