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A polymethacrylate-silica composite material for dental implants.

M Hodosh, G Shklar

    Journal of Biomedical Materials Research
    |November 1, 1977
    PubMed
    Summary
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    This study explores a new dental implant material made of silica microspheres and poly(methyl methacrylate). The material offers improved aesthetics by avoiding the black color of previous composites, while maintaining structural integrity.

    Area of Science:

    • Materials Science
    • Biomaterials Engineering
    • Dental Materials

    Background:

    • A novel composite material for dental implants, utilizing silica microspheres (3 or 5 wt%) and poly(methyl methacrylate), was developed.
    • This material aims to overcome the aesthetic limitations of existing vitreous carbon-polymethacrylate composites, which exhibit a black color problematic at the gingival margin.

    Purpose of the Study:

    • To investigate the structure and surface texture of the new silica microsphere-poly(methyl methacrylate) dental implant material.
    • To assess the material's potential as an aesthetic alternative to existing dental composites.

    Main Methods:

    • Preparation of square wafer specimens (10 mm x 10 mm x 1 mm) from the composite material.
    • Surface treatment of half the specimens via sandblasting.

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  • Microscopic analysis using light microscopy and scanning electron microscopy (SEM).

    • Main Results:

    • Light microscopy confirmed an even distribution of spherical configurations within the material.
    • Scanning electron microscopy revealed a finely porous surface texture.
    • Sandblasted specimens exhibited a porous surface with numerous large craters, indicating surface modification.

    Conclusions:

    • The new silica microsphere-poly(methyl methacrylate) composite demonstrates a homogeneous internal structure.
    • Surface characterization reveals potential for tailored surface properties through treatments like sandblasting.
    • The material shows promise as an aesthetically improved dental implant composite.