Dental Implant Superstructures by Superplastic Forming
| Autor: | S Soo, Andrzej S Juszczyk, Richard Curtis, D. Pagliaria, J.D. Walter, D Garriga-Majo |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Materials science
business.product_category Mechanical Engineering medicine.medical_treatment Metallurgy Titanium alloy Superplasticity Condensed Matter Physics Osseointegration Mechanics of Materials Residual stress Soldering visual_art visual_art.visual_art_medium medicine Die (manufacturing) General Materials Science Ceramic Dental implant business |
| Zdroj: | Materials Science Forum. :47-52 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.357-359.47 |
| Popis: | A novel application of superplastic forming is described for the production of fixed-bridge dental implant superstructures. Finite element analysis (FEA) has shown that Ti-6Al-4V sheet would be a suitable candidate material for the design of a fixed-bridge dental implant superstucture. Traditionally superstructures are cast in gold alloy onto pre-machined gold alloy cylinders but castings are often quite bulky and 25% of castings do not fit accurately (1) which means that sectioning and soldering is required to obtain a fit that is clinically acceptable and will not prejudice the integrity of the commercially pure cp-titanium implants osseointegrated with the bone. Superplastic forming is shown to be a forming technique that would allow the production of strong, light-weight components of thin section with low residual stress that could be suitable for such applications. Considerable cost savings over traditional dental techniques can be achieved using a low-cost ceramic die material. The properties of these die materials are optimised so that suitable components can be produced. Satisfactory hot strength is demonstrated and thermal properties are matched to those of the titanium alloy for accurate fit of the prosthesis. |
| Databáze: | OpenAIRE |
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