Fit analysis of different framework fabrication techniques for implant-supported partial prostheses
- Autores: Aloísio Oro Spazzin, Atais Bacchi, Alexandre Trevisani, Ana Paula Farina
- Localización: The International Journal of Prosthodontics, ISSN-e 1942-4426, Vol. 29, Nº. 4, 2016, págs. 351-353
- Idioma: inglés
- Enlaces
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Resumen
Purpose: This study evaluated the vertical misfit of implant-supported frameworks made using different techniques to obtain passive fit.
Materials and Methods: Thirty threeunit fixed partial dentures were fabricated in cobalt-chromium alloy (n = 10) using three fabrication methods: one-piece casting, framework cemented on prepared abutments, and laser welding. The vertical misfit between the frameworks and the abutments was evaluated with an optical microscope using the single-screw test. Data were analyzed using one-way analysis of variance and Tukey test (α = .05).
Results: The one-piece casted frameworks presented significantly higher vertical misfit values than those found for framework cemented on prepared abutments and laser welding techniques (P < .001 and P < .003, respectively).
Conclusion: Laser welding and framework cemented on prepared abutments are effective techniques to improve the adaptation of three-unit implant-supported prostheses. These techniques presented similar fit.
