European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
September 2009
Print ISSN:
0965-7452
Vol:
17
Issue:
3

Three-Dimensional Finite Element Analysis of the Effect of Incomplete Seating of Cemented Fixed Dental Prostheses

Abstract - This study investigated the stress distribution patterns of two finite element models of a stylized fixed dental prosthesis-cement-abutment tooth system, one with the prosthesis completely seated and the other manipulated to be incompletely seated. Maximum equivalent von Mises stress varied according to direction and location of load, with vertical loading of the pontic of the completely-seated FDP (2.9 MPa) and oblique loading of the premolar of the incompletely-seated FDP (80.8 MPa) producing the least and the highest values, respectively. Total deformation of the restored system showed variations, although different cements had minimal effect on stress and on deformation. Under the conditions studied, a fixed dental prosthesis that had not been verified as fully seated on its abutments prior to cementation, could, with repeated loading cycles, be predicted to suffer a greater risk of fatigue, and thus clinical failure.

KEY WORDS: Prosthesis fit, finite element analysis, fixed dental prosthesis

Article Price
£15.00
Institution Article Price
£
Page Start
126
Page End
133
Authors
Graeme Oliver, Qasem AlOmari, Abdulaziz Al-Attar

Articles from this issue

  • Title
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  1. Mechanical Effects of Implant-tooth Rigid Connection by a Fixed Partial Denture: A 3d Finite Element Analysis.
  2. 98
  3. 104

  1. Effect of Ferrule Placement on the Fracture Strength of Cyclically Loaded Bovine Teeth Restored with Cemented Cast Post-Cores and Crowns
  2. 105
  3. 110

  1. Holographic Stress Analysis in a Distal Extension Removable Partial Denture
  2. 111
  3. 115

  1. Effects of Storage Media on Physical Properties of Selected Tooth Coloured Restorative Materials
  2. 116
  3. 120

  1. Evaluation of the Antimicrobial Activity and Dimensional Alterations of Alginate Impression Disinfectants
  2. 121
  3. 125

  1. Three-Dimensional Finite Element Analysis of the Effect of Incomplete Seating of Cemented Fixed Dental Prostheses
  2. 126
  3. 133

  1. Bonding Auto-Polymerising Acrylic Resin to Acrylic Denture Teeth
  2. 134
  3. 136

  1. BSSPD 56th Annual Conference
  2. 137
  3. 141