Student Number : 8701355N -
MDent research report -
School of Oral Health Sciences -
Faculty of Health Sciences / Purpose: The aim of this research project was to determine the fracture resistance to
linear vertical compressive forces of acrylic and metal-reinforced acrylic fixed
implant supported prosthesis cantilever arms. Methods: Ten non-reinforced and 10
reinforced acrylic superstructures were secured on five evenly distributed implants
and subjected to linear axial compressive forces utilising an Instron® materials testing
machine. The reinforcement consisted of commercially available preformed titanium
metal strengthener bars. Force was applied to the cantilever arms 15mm distal to the
distal most implant and two tests were conducted on each sample. The first drop in
load recorded was noted as a fracture of the sample. Results: Fracture of the acrylic
was noted at the distal most implant in both non-reinforced and the reinforced
samples. The mean fracture value for the non-reinforced samples was 679N and for
the reinforced samples, 628N. Conclusion: No significant difference between the
fracture resistance of the two designs was noted.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:wits/oai:wiredspace.wits.ac.za:10539/1580 |
| Date | 01 November 2006 |
| Creators | Osswald, Martin Alexander |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 7442 bytes, 619680 bytes, application/pdf, application/pdf, application/pdf, application/pdf |
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