遊離端義歯における咬合力の配分 : 第2報連結強度の連続的変化の影響について  [in Japanese] In vivo Assessment of Occlusal Stress Distribution in Free-end Saddle Removable Partial Dentures : Part 2 Connecting Rigidity Affecting the Stress Distribution in Free-end Saddle Removable Partial Dentures  [in Japanese]

Access this Article

Search this Article

Author(s)

    • 緒方 彰 OGATA Akira
    • 鶴見大学歯学部歯科補綴学第1講座 The First Department of Prosthodontics Dentistry, Tsurumi University School of Dental Medicine

Abstract

Denture dynamics of the free-end saddle RPD (Removable Partial Dentures) should be made as low as possible in order to restore the stable occlusal contacts and protect both supporting tissues of abutments and residual ridges. Denture dynamics were directly affected by the connecting rigidity between the abutments and the denture saddles.<BR>In this study, the denture base supporting load ratio was analyzed in relation to the connecting rigidity in patients.<BR>Materials and Methods<BR>1. Layered leaf springs were utilized to measure displacement.<BR>2. Total occlusal load and denture sharing load were continuously measured when the connecting rigidity between the abutment and the denture saddle was changed.<BR>3. Denture sharing load to total occlusal force was calculated and analyzed.<BR>Results<BR>1. Continuous change of connecting rigidity was realized using layered leaf springs as connecting components of distal extension RPD.<BR>2. The more rigid the connection was, the less the denture base sharing load was.<BR>3. Denture base sharing load was associated with the increase in total occlusal load when the connecting rigidity was low.<BR>4. Denture base sharing load ratio to total occlusal load hardly showed any change when the connecting rigidity was over a certain level.<BR>Conclusion<BR>Connecting rigidity between abutments and denture saddle of distal extension RPD has a close relationship to the occlusal force distribution between abutments and residual ridges.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 42(3), 393-401, 1998-06-10

    Japan Prosthodontic Society

References:  23

Cited by:  9

Codes

  • NII Article ID (NAID)
    10008169620
  • NII NACSIS-CAT ID (NCID)
    AN00197911
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03895386
  • Data Source
    CJP  CJPref  J-STAGE 
Page Top