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Should oral implants be splinted in a mandibular implant-supported fixed complete denture? A 3-dimensional-model finite element analysis.
- Source :
-
The Journal of prosthetic dentistry [J Prosthet Dent] 2014 Sep; Vol. 112 (3), pp. 508-14. Date of Electronic Publication: 2014 Feb 21. - Publication Year :
- 2014
-
Abstract
- Statement of Problem: The design of a mandibular fixed complete denture can influence periimplant bone loss. However, the design that transfers the greatest stress to the periimplant bone is not well documented.<br />Purpose: The purpose of this study was to assess the stress distribution associated with splinted and nonsplinted implant-supported mandibular fixed complete denture designs.<br />Material and Methods: Three-dimensional finite element models simulating 6 osseointegrated implants were created in the mandible to support a cobalt-chromium alloy and feldspathic porcelain veneering framework. One model simulated a 1-piece framework, and the other models simulated 2-piece and 3-piece frameworks. Axial and oblique loads were applied to the frameworks.<br />Results: For all the models, the greatest stress values were recorded in the periimplant bone of posterior implants, with differences between the left and right sides. The axial load transferred greater stress values to the periimplant bone than did the oblique load. The lowest periimplant bone stress values were observed in the 3-piece framework model at all implant locations, with the exception of implants placed in the canine region.<br />Conclusions: A framework separated into 3 pieces transfers the least stress to the periimplant bone.<br /> (Copyright © 2014 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.)
- Subjects :
- Aluminum Silicates chemistry
Biomechanical Phenomena
Bite Force
Chromium Alloys chemistry
Computer Simulation
Cuspid
Dental Arch physiopathology
Dental Porcelain chemistry
Dental Veneers
Denture Design
Humans
Jaw, Edentulous physiopathology
Mandible physiopathology
Models, Biological
Osseointegration physiology
Potassium Compounds chemistry
Stress, Mechanical
Dental Implants
Dental Prosthesis Design
Dental Prosthesis, Implant-Supported
Denture, Complete, Lower
Finite Element Analysis
Imaging, Three-Dimensional methods
Subjects
Details
- Language :
- English
- ISSN :
- 1097-6841
- Volume :
- 112
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- The Journal of prosthetic dentistry
- Publication Type :
- Academic Journal
- Accession number :
- 24560983
- Full Text :
- https://doi.org/10.1016/j.prosdent.2013.12.004