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  • Title: Fatigue and tensile strength of dental gallium alloys after artificial saliva immersion.
    Author: Meiana S, Takahashi H.
    Journal: Dent Mater J; 1998 Dec; 17(4):239-52. PubMed ID: 10219138.
    Abstract:
    Fatigue strength using the stair-case method and tensile strength of dental gallium alloys after artificial saliva immersion were measured for evaluating the effects of corrosive environment storage on the mechanical properties of the gallium alloys. The fatigue and the tensile strengths of both gallium alloys stored in artificial saliva were significantly decreased after 12-month storage, while those stored in air increased with storage period. The fracture surfaces of the specimens in artificial saliva showed not only metallic luster but also dark areas. In the dark area, the matrix might have dissolved during immersion. These results suggested that the concern over corrosion resistance of gallium alloys still remained.
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