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
Artigo
em Inglês
| 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:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Titânio
/
Ligas Metalo-Cerâmicas
/
Adaptação Marginal Dentária
/
Prótese Dentária Fixada por Implante
/
Porcelana Dentária
Tipo de estudo:
Guia de Prática Clínica
Idioma:
Inglês
Revista:
Braz. j. oral sci
Assunto da revista:
Odontologia
Ano de publicação:
2010
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
State University of Campinas/BR
/
São Lucas College/BR
Similares
MEDLINE
...
LILACS
LIS