人工歯根の緩衝構造に関する研究  [in Japanese] The Study on Shock-absorbing Structure of Dental Implants  [in Japanese]

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Author(s)

    • 大塚 亨 Ohtsuka Tohru
    • 神奈川歯科大学口腔外科学第二講座 The second Department of Oral and Maxillofacial Surgery, Kanagawa Dental College

Abstract

The purpose of this study is to reveal the most practical, effective shock-absorbing structure for dental implants. First, I studied the mechanical properties, imperviousness to water and endurance of polyurethane used as absorbing materials.<br/> Next, I measured the displacement characteristic, the impact force response and the impact acceleration response of clinically applicable absorbing structures-the superstructure (hard resin), inside the superstructure (polyurethane), and in the tooth root (polyurethane, sillicone)- and their absorbing effects.<br/> As a result,<br/> 1. Polycarbonate type polyurethane was excellent in mechanical strength, elasticity, imperviousness to water, and endurance and proved to be an appropriate absorbing material.<br/> 2. The displacement of the absorbing structure in the tooth root using polycarbonate type polyurethane was approximate to that of a natural tooth, and its shock-absorbing effect was the highest.<br/> The above results suggested that the method of placing an absorbing structure in the root of dental implants was a practical as well as effective method, which provided displacement similar to that of a natural tooth and provided an efficient impact-absorbing effect.<br/>

Journal

  • Journal of Japanese Society of Oral Implantology

    Journal of Japanese Society of Oral Implantology 6(1), 61-74, 1993

    Japanese Society of Oral Implantology

Codes

  • NII Article ID (NAID)
    130007474358
  • Text Lang
    JPN
  • ISSN
    0914-6695
  • Data Source
    J-STAGE 
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