Effects of hydrogen peroxide pretreatment and heat activation of silane on the shear bond strength of fiber-reinforced composite posts to resin cement
The Journal of Advanced Prosthodontics
;
: 94-100, 2016.
Artigo
em Inglês
| WPRIM
| ID: wpr-26930
ABSTRACT
PURPOSE:
To evaluate the effects of hydrogen peroxide pretreatment and heat activation of silane on the shear bond strength of fiber-reinforced composite posts to resin cement. MATERIALS ANDMETHODS:
The specimens were prepared to evaluate the bond strength of epoxy resin-based fiber posts (D.T. Light-Post) to dual-curing resin cement (RelyX U200). The specimens were divided into four groups (n=18) according to different surface treatments group 1, no treatment; group 2, silanization; group 3, silanization after hydrogen peroxide etching; group 4, silanization with warm drying at 80℃ after hydrogen peroxide etching. After storage of the specimens in distilled water at 37℃ for 24 hours, the shear bond strength (in MPa) between the fiber post and resin cement was measured using a universal testing machine. The fractured surface of the fiber post was examined using scanning electron microscopy. Data were analyzed using one-way ANOVA and post-hoc analysis with Tukey's HSD test (α=0.05).RESULTS:
Silanization of the fiber post (Group 2) significantly increased the bond strength in comparison with the non treated control (Group 1) (P.05).CONCLUSION:
Fiber post silanization and subsequent heat treatment (80℃) with warm air blower can be beneficial in clinical post cementation. However, hydrogen peroxide etching prior to silanization was not effective in this study.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Água
/
Microscopia Eletrônica de Varredura
/
Cimentação
/
Cimentos de Resina
/
Resistência ao Cisalhamento
/
Temperatura Alta
/
Hidrogênio
/
Peróxido de Hidrogênio
Idioma:
Inglês
Revista:
The Journal of Advanced Prosthodontics
Ano de publicação:
2016
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS