Push-out bond strength of quartz fibre posts to root canal dentinusing total-etch and self-adhesive resin cements
Med. oral patol. oral cir. bucal (Internet)
; 17(2): 337-344, mar. 2012. ilus, tab
Article
em En
| IBECS
| ID: ibc-98964
Biblioteca responsável:
ES1.1
Localização: BNCS
ABSTRACT
Objectives: Several adhesive systems are available for cementation of fibre posts into the root canal. The aim of the present study was to investigate the push-out bond strengths of quartz fibre posts to root dentin with the use of different total-etch and self-adhesive resin cements. Study Design: Ninety single-rooted human premolars were endodontically treated and standardized post-spaces were prepared. Fibre posts were cemented with different luting agents: total-etch (Nexus NX3, Duo-Link, and RelyX ARC) and self-adhesive resin cements (Maxcem Elite, BisCem, and RelyX Unicem). Three post/dentinsections (coronal, middle and apical) were obtained from each specimen, and push-out bond strength test was performed in each section at a cross-head speed of 0.5 mm/min. Data was analyzed with two-factor and one-way analysis of variance and a post-hoc Tukey test at a significance level of p < 0.05.Results: Cement type, canal region, and their interaction significantly influenced bond strength. Significantly higher bond strength values were observed in the apical region of self-adhesive cements. Only Duo-Link and RelyX ARC cements resulted in homogeneous bond strengths. Conclusions: Cementation of quartz fibre posts using self-adhesive cements provided higher push-out bond strengths especially in the apical region, while total-etch cements resulted in more uniform bond strengths indifferent regions of the root canal (AU)
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Coleções:
06-national
/
ES
Base de dados:
IBECS
Assunto principal:
Quartzo
/
Materiais Restauradores do Canal Radicular
/
Raiz Dentária
/
Preparo de Canal Radicular
/
Dentina
Limite:
Humans
Idioma:
En
Revista:
Med. oral patol. oral cir. bucal (Internet)
Ano de publicação:
2012
Tipo de documento:
Article