Effects of occlusal force loading on tooth movement in six degrees of freedom—development of an analysis system

DOI 被引用文献3件 参考文献18件 オープンアクセス
  • Satsuma Toyoko
    <I>Department of Fixed Prosthodontics, School of Dentistry, The University of Tokushima</I>
  • Bando Eiichi
    <I>Department of Fixed Prosthodontics, School of Dentistry, The University of Tokushima</I>
  • Shigemoto Shuji
    <I>Department of Fixed Prosthodontics, School of Dentistry, The University of Tokushima</I>
  • Kori Motoharu
    <I>Department of Fixed Prosthodontics, School of Dentistry, The University of Tokushima</I>
  • Nakano Masanori
    <I>Department of Fixed Prosthodontics, School of Dentistry, The University of Tokushima</I>
  • Nishigawa Keisuke
    <I>Department of Fixed Prosthodontics, School of Dentistry, The University of Tokushima</I>
  • Yamauchi Eiji
    <I>Department of Fixed Prosthodontics, School of Dentistry, The University of Tokushima</I>
  • Kawaguchi Takaho
    <I>Department of Fixed Prosthodontics, School of Dentistry, The University of Tokushima</I>

書誌事項

タイトル別名
  • Effects of occlusal force loading on tooth movement in six degrees of freedom. Development of an analysis system.
  • —Development of an analysis system—

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説明

The purpose of this research was to evaluate tooth movement in six degrees of freedom under occlusal force loading. The right side upper first premolar movement of an adult volunteer without any signs or symptoms of periodontal disease was studied. A small occlusal table mounted on a force transducer was clipped between the upper and lower dentition. Occlusal force was applied to the buccal cusp, palatal cusp or central fossa of the first premolar and also to the right side canine aspect by clenching this occlusal table.<BR>The right side first premolar movement relative to the left side first premolar was measured by means of a high-resolution six degrees of freedom motion detector. The three-dimensional shape of the first premolar was measured with following methods. A 3-D digitizer with a touch sensor probe was used to measure the coronal part of a cast stone model of the tooth. Computerized tomography data were used to obtain the root shape of the tooth. These movement and configuration data were combined to perform computer graphics analysis of the three-dimensional tooth movements. The range and direction of tooth movement were varied by altering the position and amplitude of occlusal force loading. Since the magnitude of the tooth movements was relatively small, we adapted the screw axis (helical axis) concept to emphasize tooth movement on the computer graphics representations.

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