Influence of different surface treatments on bond strength of novel CAD/CAM restorative materials to resin cement
The Journal of Advanced Prosthodontics
;
: 439-446, 2017.
Artículo
en Inglés
| WPRIM
| ID: wpr-159616
ABSTRACT
PURPOSE:
To evaluate the effects of different surface treatments on the bond strength of novel CAD/CAM restorative materials to resin cement by four point bending test. MATERIALS ANDMETHODS:
The CAD/CAM materials under investigation were e.max CAD, Mark II, Lava Ultimate, and Enamic. A total of 400 bar specimens (4×1.2×12 mm) (n=10) milled from the CAD/CAM blocks underwent various pretreatments (no pretreatment (C), hydrofluoric acid (A), hydrofluoric acid + universal adhesive (Scotchbond) (AS), sandblasting (Sb), and sandblasting + universal adhesive (SbS)). The bars were luted end-to-end on the prepared surfaces with a dual curing adhesive resin cement (Variolink N, Ivoclar Vivadent) on the custom-made stainless steel mold. Ten test specimens for each treatment and material combination were performed with four point bending test method. Data were analyzed using ANOVA and Tukey's test.RESULTS:
The surface treatment and type of CAD/CAM restorative material showed a significant effect on the four point bending strength (FPBS) (P < .001). For LDC, AS surface treatment showed the highest FPBS results (100.31 ± 10.7 MPa) and the lowest values were obtained in RNC (23.63 ± 9.0 MPa) for control group. SEM analyses showed that the surface topography of CAD/CAM restorative materials was modified after treatments.CONCLUSION:
The surface treatment of sandblasting or HF acid etching in combination with a universal adhesive containing MDP can be suggested for the adhesive cementation of the novel CAD/CAM restorative materials.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Acero Inoxidable
/
Adhesivos
/
Cementación
/
Cementos de Resina
/
Hongos
/
Ácido Fluorhídrico
/
Métodos
Idioma:
Inglés
Revista:
The Journal of Advanced Prosthodontics
Año:
2017
Tipo del documento:
Artículo
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