人工歯肉付模型を用いた支台歯形成実習の多変量解析による分析 : 一主成分分析による解析  [in Japanese] Multivariate Analysis of Results of Tooth Preparation Practice in Manikin Head with Artificial Gingiva : Applying Principal Component Analysis  [in Japanese]

Access this Article

Search this Article

Author(s)

    • 笠原 紳 KASAHARA Shin
    • 東北大学歯学部歯科補綴学第一講座 First Department of Prosthetic Dentistry, Tohoku University School of Dentistry
    • 奥山 弥生 OKUYAMA Yayoi
    • 東北大学歯学部歯科補綴学第一講座 First Department of Prosthetic Dentistry, Tohoku University School of Dentistry
    • 木村 幸平 KIMURA Kohei
    • 東北大学歯学部歯科補綴学第一講座 First Department of Prosthetic Dentistry, Tohoku University School of Dentistry

Abstract

In order to investigate the tendency of preparation results by dental students of the maxillary leftfirst molar in manikin head with artificial gingiva, 41 measurements (under 8 items) of each prepared artificialtooth were taken and these data were evaluated by the principal component analysis (PCA).<BR>The results were as follows:<BR>1. Cumulative contribution ratios of the first and second components of PCA were 0.19 and 0.11, respectively.<BR>2. The results of PCA showed that the first component depended on the factor of the preparation volume, and the second component on the factor of the preparation form, respectively.<BR>3. PCA revealed that in most cases of preparation by dental students, much tooth substance was lost andpreparation form was poor.<BR>4. It is useful to apply PCA for the evaluation of multivariate measurements in the dental field.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 41(5), 835-842, 1997-10-01

    Japan Prosthodontic Society

References:  7

Cited by:  4

Codes

  • NII Article ID (NAID)
    10008167778
  • NII NACSIS-CAT ID (NCID)
    AN00197911
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03895386
  • Data Source
    CJP  CJPref  J-STAGE 
Page Top