歯冠補綴物のCADシステムに用いる標準歯冠モデルの作成 : 第2報前歯部の標準歯冠モデルの作成 A Study on Creating the Tooth Crown Basic Models Used in CAD System for Crown Restorations : Part 2 The Creation of the Tooth Crown Basic Models of Anterior Teeth

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著者

    • 会田 英紀 AITA Hideki
    • 北海道大学歯学部歯科補綴学第二講座 Department of Crown and Bridge Prosthodontics, School of Dentistry, Hokkaido University
    • 上田 康夫 UEDA Yasuo
    • 北海道大学歯学部歯科補綴学第二講座 Department of Crown and Bridge Prosthodontics, School of Dentistry, Hokkaido University
    • 依本 卓見 YORIMOTO Takumi
    • 北海道大学歯学部歯科補綴学第二講座 Department of Crown and Bridge Prosthodontics, School of Dentistry, Hokkaido University
    • 疋田 一洋 HIKITA Kazuhiro
    • 北海道大学歯学部歯科補綴学第二講座 Department of Crown and Bridge Prosthodontics, School of Dentistry, Hokkaido University
    • 大畑 昇 OHATA Noboru
    • 北海道大学歯学部歯科補綴学第二講座 Department of Crown and Bridge Prosthodontics, School of Dentistry, Hokkaido University

抄録

For the past 10 years, we have been engaged in research on development of CAD/CAM system for prosthetic restoration such as crown and bridge in molar teeth. In order to apply this system to anterior teeth, it is necessary to create the crown basic model data of the anterior teeth. The purpose of this study was to complete a library of basic crown model data of all teeth for the CAD system.<BR>The results were as follows:<BR>1. By dividing the incisal edge or the cuspid into a grid pattern, solid models of anterior teeth represented by bicubic Bezier surfaces were made from three-dimensional coordinate data of four-fold enlarged plaster models measured from five directions.<BR>2. In order to represent the coronal anatomical features of the anterior teeth, it was necessary to divide the four-fold enlarged models into more than 104 Bezier surfaces, and the real size models into more than 43 Bezier surfaces.<BR>3. The results suggested that consideration of the functional crown forms of the natural teeth may be necessary to decide the most suitable surface for basic crown models.

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 42(5), 832-838, 1998-10-10

    Japan Prosthodontic Society

参考文献:  13件中 1-13件 を表示

被引用文献:  11件中 1-11件 を表示

各種コード

  • NII論文ID(NAID)
    10008171041
  • 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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