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Finite element analysis on dental implant-supported prostheses without passive fit.

Publication ,  Journal Article
Kunavisarut, C; Lang, LA; Stoner, BR; Felton, DA
Published in: Journal of prosthodontics : official journal of the American College of Prosthodontists
March 2002

The purpose of this study is to use finite element analysis to investigate the effect of misfit prostheses, cantilever prostheses, and various occlusal forces on the stress distribution in the prostheses, implant components, and surrounding bone.Two 3-dimensional finite element models were constructed: (1) a 2-implant-supported, 2-unit fixed partial denture and (2) a 2-implant-supported, 2-unit fixed partial denture with a distal cantilever. Variations of the standard finite element models were made by placing a 111-microm gap between the gold cylinder on either the mesial or distal implant. The effects of load of 100 N were tested on all models. Subsequently, loads of 50 N, 200 N, and 300 N were evaluated on the cantilever model.When the gap was positioned near to the applied force, the stress in both models increased significantly in the implant components and surrounding bone. The stress increase in each component ranged from 8% to 64% in the non-cantilever models and 43% to 85% in the cantilever models. The greatest stress was found in the distal gold screw. The effect of the gap was clearly shown by the pattern of stress distribution in both models. Additionally, the presence of a cantilever and excessive occlusal force amplified the effect of prosthesis misfit.Prosthesis misfit influenced the pattern and magnitude of stress distribution in the prosthesis, implant components, and surrounding bone, and the presence of the cantilever or greater occlusal force amplified the effect of misfit.

Duke Scholars

Published In

Journal of prosthodontics : official journal of the American College of Prosthodontists

DOI

EISSN

1532-849X

ISSN

1059-941X

Publication Date

March 2002

Volume

11

Issue

1

Start / End Page

30 / 40

Related Subject Headings

  • Surface Properties
  • Stress, Mechanical
  • Models, Biological
  • Mandible
  • Humans
  • Gold Alloys
  • Finite Element Analysis
  • Denture, Partial, Fixed
  • Denture Design
  • Dentistry
 

Citation

APA
Chicago
ICMJE
MLA
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Kunavisarut, C., Lang, L. A., Stoner, B. R., & Felton, D. A. (2002). Finite element analysis on dental implant-supported prostheses without passive fit. Journal of Prosthodontics : Official Journal of the American College of Prosthodontists, 11(1), 30–40. https://doi.org/10.1111/j.1532-849x.2002.00030.x
Kunavisarut, Chatchai, Lisa A. Lang, Brian R. Stoner, and David A. Felton. “Finite element analysis on dental implant-supported prostheses without passive fit.Journal of Prosthodontics : Official Journal of the American College of Prosthodontists 11, no. 1 (March 2002): 30–40. https://doi.org/10.1111/j.1532-849x.2002.00030.x.
Kunavisarut C, Lang LA, Stoner BR, Felton DA. Finite element analysis on dental implant-supported prostheses without passive fit. Journal of prosthodontics : official journal of the American College of Prosthodontists. 2002 Mar;11(1):30–40.
Kunavisarut, Chatchai, et al. “Finite element analysis on dental implant-supported prostheses without passive fit.Journal of Prosthodontics : Official Journal of the American College of Prosthodontists, vol. 11, no. 1, Mar. 2002, pp. 30–40. Epmc, doi:10.1111/j.1532-849x.2002.00030.x.
Kunavisarut C, Lang LA, Stoner BR, Felton DA. Finite element analysis on dental implant-supported prostheses without passive fit. Journal of prosthodontics : official journal of the American College of Prosthodontists. 2002 Mar;11(1):30–40.
Journal cover image

Published In

Journal of prosthodontics : official journal of the American College of Prosthodontists

DOI

EISSN

1532-849X

ISSN

1059-941X

Publication Date

March 2002

Volume

11

Issue

1

Start / End Page

30 / 40

Related Subject Headings

  • Surface Properties
  • Stress, Mechanical
  • Models, Biological
  • Mandible
  • Humans
  • Gold Alloys
  • Finite Element Analysis
  • Denture, Partial, Fixed
  • Denture Design
  • Dentistry