Evaluation of occlusal stability in each occlusal developmental stage using the sequential occlusal force of the T-Scan system

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  • MATSUZAKI Satoshi
    Graduate School of Dentistry (Department of Fixed Prosthodontics and Occlusion), Osaka Dental University
  • SATO Masaki
    Department of Fixed Prosthodontics and Occlusion, Osaka Dental University
  • FUKUMOTO Takahiro
    Department of Fixed Prosthodontics and Occlusion, Osaka Dental University
  • TSURUMI Akiko
    Department of Fixed Prosthodontics and Occlusion, Osaka Dental University
  • TATSUTA Mitsuhiro
    Department of Fixed Prosthodontics and Occlusion, Osaka Dental University
  • TANAKA Junko
    Department of Fixed Prosthodontics and Occlusion, Osaka Dental University
  • TANAKA Masahiro
    Department of Fixed Prosthodontics and Occlusion, Osaka Dental University

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Other Title
  • 咬合発育各期における咬合安定性のT-Scanを用いた時系列咬合力測定による評価
  • コウゴウハツイク カク キ ニ オケル コウゴウアンテイセイ ノ T-Scan オ モチイタ ジケイレツコウゴウリョク ソクテイ ニ ヨル ヒョウカ

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Abstract

<p>In the prior report that analyzed the distribution of the occlusal contact area and contact position at centric occlusion in each Hellman dental developmental stage, occlusal contact showed an unstable aspect in IIIB. T-Scan can measure the duration of intercuspation from initial occlusal contact to maximum intercuspal position. We evaluated the stability of occlusion in each developmental stage from the distribution of occlusal force, duration, and movement trace from initial occlusal contact to intercuspal position using the T-Scan. Eight healthy subjects in each Hellman dental developmental stage (IIIB,IIIC and IVA) participated in this study. Outcome parameters were the absolute value of the bilateral difference and the anteroposterior difference in occlusal force in intercuspal position. The time and displaced distance of the center of occlusal force from initial occlusal contact to intercuspal position were calculated. Only the bilateral difference in occlusal force of IIIB showed a significantly greater value than IIIC and IVA. Our results showed that the bias was observed in the occlusal force distribution at intercuspal position in IIIB, but that the occlusal stability was maintained through the Hellman dental developmental stages of IIIB, IIIC and IVA. Shika Igaku (J Osaka Odontol Soc) 2019; Mar; 82(1):1‐5.</p>

Journal

  • Shikaigaku

    Shikaigaku 82 (1), 1-5, 2019-03-25

    Osaka Odontological Society

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