Akiyo Tsuchiya

Tokyo Medical and Dental University, Tokyo, Tokyo-to, Japan

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Publications (1)0 Total impact

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    ABSTRACT: It has become clear that foods crushing is performed in the circumscribed region between functional cusps, that is, at "the main occluding area". However, it is not established to evaluate this area objectively. The purpose of this study was to establish the positional evaluation of the main occluding area quantitatively and evaluate the positional change depending on the age with this method. The subjects were fifteen adults and ten adolescents who had no stomatognathic disorder. Temporary Stopping was used as test material in this study. In order to analyze the position of the main occluding area, the projected centroid coordinate of the test material was calculated and projected onto the reference axis. It was possible to quantitatively evaluate positional changes of the main occluding area depending on growth process. As a result, the main occluding areas of the adults were significantly posterior to those of the adolescents and tended to be more stable. There was a significant difference in the occlusal contant area between two groups. The occlusal contact area had great influence on the stability of the main occluding area. However, besides occlusal contact area, there might be other factors which stabilized the main occluding area.
    Journal of medical and dental sciences 03/2008; 55(1):81-90.

Publication Stats

2 Citations

Institutions

  • 2008
    • Tokyo Medical and Dental University
      • Department of Restorative Sciences
      Tokyo, Tokyo-to, Japan