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- Title
Three-dimensional finite element analysis of Aramany Class IV obturator prosthesis with different clasp designs.
- Authors
Hideaki HASE; Akikazu SHINYA; Daiichiro YOKOYAMA; Akiyoshi SHINYA; Yutaka TAKAHASHI
- Abstract
The purpose of this study was to evaluate the stress distribution on the alveolar bone surrounding abutment teeth and thedisplacement of the Aramany Class IV obturator prosthesis with two different clasp designs. Three-dimensional finite elementmodels of an Aramany Class IV maxillary defect were constructed. Two different clasp designs on an obturator prosthesis (doubleAkers clasps and multiple Roach clasps) and two different load conditions (vertical and horizontal) were compared. Finite elementanalysis was used to calculate the equivalent stress. The difference in the clasp design of the Aramany Class IV obturator prosthesisaffected the stress distribution of the alveolar bone surrounding the abutment teeth and the displacement of the obturator prosthesis.Multiple Roach clasps reduced the stress distribution on the alveolar bone surrounding the abutment teeth and the displacement ofthe Aramany Class IV obturator prosthesis compared to double Akers clasps.
- Subjects
ARTIFICIAL palates; FINITE element method; STRESS concentration; DENTAL abutments; THREE-dimensional imaging; COMPARATIVE studies
- Publication
Dental Materials Journal, 2014, Vol 33, Issue 3, p383
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2014-015