Porcelain application and simulation of firing cycle: effect on marginal misfit of implant-supported frameworks
Braz. j. oral sci
;
9(3): 376-379, July-Sept. 2010. ilus, tab
Artículo
en Inglés
| LILACS, BBO
| ID: lil-578059
ABSTRACT
Aim: Success of implant-supported prostheses is related to the frameworks passive fit, henceinaccuracies can generate stress, leading to bone resorption and rehabilitation failure. This study evaluated misfit levels of implant-supported frameworks after different coverage treatments.Methods: Twenty commercially pure titanium (CP Ti) frameworks were manufactured with 5Branemark type multi-unit abutments. Frameworks were distributed in two groups as follows: G1- porcelain application (n=10); G2 - porcelain firing cycle simulation (n=10). Using a traveling microscope, marginal misfit was measured before and after undertaking the techniques, following the single-screw test protocol. All data were submitted to ANOVA and Tukeys test (p<0.05).Results: Initial marginal misfit values were not significantly different, but both groups presented significantly higher misfit values after treatment: G1: 233.99 ìm (p=0.0003); G2: 119.75 ìm(p<0.0001). In addition, G1 presented higher misfit than G2 (p<0.0001). Conclusions: Porcelain application promoted significantly higher increase of misfit, which indicates that such procedure should be considered on misfit analysis of implant-supported prostheses.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Titanio
/
Aleaciones de Cerámica y Metal
/
Adaptación Marginal Dental
/
Prótesis Dental de Soporte Implantado
/
Porcelana Dental
Tipo de estudio:
Guía de Práctica Clínica
Idioma:
Inglés
Revista:
Braz. j. oral sci
Asunto de la revista:
Odontología
Año:
2010
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
State University of Campinas/BR
/
São Lucas College/BR
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