重付加型シリコーンゴム印象材の流動性に関するレオロジー的研究 Rheological Study on Flow Properties of Polyaddition-type Silicone Impression Materials

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著者

    • 泉田 明男 IZUMIDA Akio
    • 東北大学大学院歯学研究科口腔機能再建・材料学講座咬合機能再建学分野 Division of Fixed Prosthodontics, Department of Oral Rehabilitation and Materials Science, Tohoku University Graduate School of Dentistry
    • 細谷 誠 HOSOTANI Makoto
    • 東北大学大学院歯学研究科口腔機能再建・材料学講座咬合機能再建学分野 Division of Fixed Prosthodontics, Department of Oral Rehabilitation and Materials Science, Tohoku University Graduate School of Dentistry
    • 木村 幸平 KIMURA Kohei
    • 東北大学大学院歯学研究科口腔機能再建・材料学講座咬合機能再建学分野 Division of Fixed Prosthodontics, Department of Oral Rehabilitation and Materials Science, Tohoku University Graduate School of Dentistry

抄録

The purpose of this study was to give polyaddition-type silicone impression materials (Regular Type) the characteristics that the pastes are easy to mix, and they are difficult to hang down from the tray. In a previous study, the inorganic filler significantly affected the flow characteristics of impression materials. As usual, polyaddition-type silicone impression materials (Regular Type) do not have a yield value in the flow characteristics. A material with a yield value has superior workability characteristics.<BR>We attempted to make pastes of mixtures having a yield value. The silicone prepolymers used were vinyl polydimethylsiloxanes with 56, 000 and 85, 000 molecular weights (Mw), and the inorganic fillers used were quartz and synthetic silica (micro filler). The flow properties of experimental pastes were investigated by using a cone-plate viscometer, from the rheological point of view. As a result, a little addition of synthetic silica in experimental pastes made a flow property having a yield value and was effective in working. This study suggests a direction in manufacturing impression materials toward including superior characteristics that had low viscosity and was easy to mix in working.

収録刊行物

  • 日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society

    日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society 44(6), 768-775, 2000-12-10

    Japan Prosthodontic Society

参考文献:  18件中 1-18件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10008156582
  • NII書誌ID(NCID)
    AN00197911
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03895386
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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