Intra-radicular dentin treatments and retention of fiber posts with self-adhesive resin cements
Braz. oral res
;
27(1): 14-19, Jan.-Feb. 2013. tab
Artículo
en Inglés
| LILACS
| ID: lil-660446
ABSTRACT
The aim of this study was to evaluate the effect of treating intraradicular dentin with irrigating solutions on the retention of glass-fiber posts luted with self-adhesive resin cement. Bovine incisors were endodontically treated, and 9-mm-deep postholes were prepared. Before inserting the cement, the root canals were irrigated with various solutions 11.5% polyacrylic acid for 30 s, 17% EDTA for 60 s, or 5% NaOCl for 60 s, respectively. Irrigation with distilled water was used in the control group. After all specimens had been rinsed with distilled water, the excess moisture was removed and the posts were luted using either BisCem (Bisco) or RelyX Unicem clicker (3M ESPE). Seven days after luting, the specimens were sectioned transversally into 1-mm-thick slices, which were submitted to push-out testing on a mechanical testing machine. Bond strength data (n = 6 per group) were analyzed by two-way ANOVA and Student-Newman-Keuls' test (α = 0.05). For Unicem, EDTA showed lower bond strength than the other solutions, which had similar results. For BisCem, EDTA showed higher bond strength than the other treatments, while application of NaOCl yielded higher bond strength than polyacrylic acid whereas the control group had intermediate results. In conclusion, irrigating root canals before insertion of self-adhesive resin cements, especially EDTA, might interfere with retention of the fiber posts.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Irrigantes del Conducto Radicular
/
Tratamiento del Conducto Radicular
/
Técnica de Perno Muñón
/
Recubrimiento Dental Adhesivo
/
Recubrimientos Dentinarios
/
Cementos de Resina
Tipo de estudio:
Estudios de evaluación
Límite:
Animales
Idioma:
Inglés
Revista:
Braz. oral res
Asunto de la revista:
Odontología
Año:
2013
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Brasil
Institución/País de afiliación:
Univ Federal de Sergipe/BR
Similares
MEDLINE
...
LILACS
LIS