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.
Artículo
en Inglés
| 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:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Agua
/
Microscopía Electrónica de Rastreo
/
Cementación
/
Cementos de Resina
/
Resistencia al Corte
/
Calor
/
Hidrógeno
/
Peróxido de Hidrógeno
Idioma:
Inglés
Revista:
The Journal of Advanced Prosthodontics
Año:
2016
Tipo del documento:
Artículo
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