歯冠形態の三次元計測と復元(CAD/CAM)に関する研究  [in Japanese] A Study on Three-Dimensional Measurement and Restoration of Tooth Crown-Form (by CAD/CAM)  [in Japanese]

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Author(s)

    • 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

Abstract

The purpose of this study was to examine the technical possibility of fabricating crowns by using CAD/CAM. First, it was attempted to construct a crown-form model by NC milling, based on threedimensionalmeasurement data obtained by a touch probe. Next, it was attempted to fabricate the metal crownby NC milling and spark erosion, based on three-dimensional measurement data obtained by a touch probe orlaser scanning.<BR>The results were as follows:<BR>1. The crown-form model fabricated according to three-dimensional measurement data obtained by atouch probe was restored accurately, compared with the original crown-form model. The differences in thethree-dimensional data of occlusal surfaces between the two models were 20-100μm.<BR>2. The crown-form model fabricated according to three-dimensional measurement data obtained by laserwas not restored accurately, compared with the original crown-form.<BR>3. It was possible to fabricate a metal crown by NC milling and spark erosion. Therefore, it wasconfirmed that fabrication of crowns by CAD/CAM is technically possible.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 41(5), 804-813, 1997-10-01

    Japan Prosthodontic Society

References:  34

Cited by:  17

Codes

  • NII Article ID (NAID)
    10008167683
  • NII NACSIS-CAT ID (NCID)
    AN00197911
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03895386
  • Data Source
    CJP  CJPref  J-STAGE 
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