Portal de Periódicos da CAPES

Artigo Produção Nacional Revisado por pares

BIBTEX RIS

Root canal flare: Effect on push-out strength of relined posts

2014; Elsevier BV; Volume: 55; Linguagem: Inglês

10.1016/j.ijadhadh.2014.09.003

1879-0127

Daniela Figueiredo Fonseca Schetini, Fernando Jose Rigolin Ferreira, Flávia Lucisano Botelho do Amaral, Milton Edson Miranda, Cecília Pedroso Turssi,

Dental Trauma and Treatments

Abstract Purpose The aim of this study was to investigate the push-out bond strength (PBS) of resin-relined and non-relined glass fiber posts (GFP) luted to flared root canals. Material and methods Root canals of 80 bovine incisors were enlarged to obtain 40 mildly flared and 40 over-flared post spaces. Half of the specimens from each group had the GFP resin-relined, whilst the remainders were not relined. A further 20 root canals were minimally flared and restored with a non-relined GFP (control group). Posts were luted into the root canal space using dual-cure resin cement. Three slices were sectioned from each specimen: one from the coronal third and the others from the middle and apical thirds. PBS test was performed in a universal testing machine at a speed of 0.5 mm/min. Results Two-way ANOVA for repeated measures and Tukey’s test showed that PBS was affected by the root canal flare and relining procedure (p Conclusions Depending on the extent of the root canal flare, relined fiber posts may outperform or at least perform as well as posts luted in minimally-flared canals.