Effects of Disinfecting Alginate Impressions on the Scratch Hardness of Stone Models

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  • HIRAGUCHI Hisako
    Department of Dental Materials, Nihon University School of Dentistry Division of Biomaterials Science, Dental Research Center, Nihon University School of Dentistry
  • NAKAGAWA Hisami
    Dental Research Center, Nihon University School of Dentistry
  • WAKASHIMA Mitsuru
    Department of Dental Materials, Nihon University School of Dentistry
  • MIYANAGA Kohichi
    Department of Dental Materials, Nihon University School of Dentistry
  • SAIGO Masataka
    Department of Dental Materials, Nihon University School of Dentistry
  • NISHIYAMA Minoru
    Department of Dental Materials, Nihon University School of Dentistry Division of Biomaterials Science, Dental Research Center, Nihon University School of Dentistry

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Description

This study investigated the effects of disinfecting alginate impressions on the scratch depth of resultant stone models. Eleven brands of alginate impression material and two disinfectants, 1% sodium hypochlorite and 2% glutaraldehyde, were used. Impressions were immersed in disinfectant solutions or stored in sealed bags after spraying with disinfectants, and then poured with a type V dental stone. The scratch depth of the stone model obtained from disinfected impression was measured. The storage of alginate impressions after spraying with disinfectants did not increase the scratch depth of resultant stone models. However, the effect of immersion in disinfectants on scratch depth varied with the brand of the alginate impression material.

Journal

  • Dental Materials Journal

    Dental Materials Journal 25 (1), 172-176, 2006

    The Japanese Society for Dental Materials and Devices

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