Giachetti, L., Scaminaci Russo, D., Baldini, M., Bertini, F., Steier, L. and Ferrari, M.. (2012) Push-out strength of translucent fibre posts cemented using a dual-curing technique or a light-curing self-adhering material. International Endodontic Journal, Vol.45 (No.3). pp. 249-256. ISSN 0143-2885

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Abstract

Aim To compare by means of a push-out test the interfacial strength of a dual-curing resin cement and a light-curing self-adhering resin composite when used in translucent fibre post cementation. Methodology Thirty-four extracted human premolars with single canals were selected and root filled. Translucent fibre posts (RelyX Fiber Post) were luted into the root canal using two resinous luting systems (n = 17). Dual-Curing Technique (DC): the specimens were treated with Excite DSC and RelyX ARC, which were light-cured simultaneously through the post for 60 s. Light-Curing Self-Adhering Technique (LCSA): the specimens were treated with Vertise Flow, which was light-cured through the post for 60 s. The specimens were sectioned transversally into six slices to perform the push-out test at the coronal, middle and apical regions of the root canals. Data were analysed by two-way anova. All specimens were analysed by stereomicroscopy and SEM to determine fracture patterns. Results There were no significant differences between the DC and LCSA techniques (P = 0.703) in any of the canal regions. Root region was not a significant factor for push-out values (P = 0.255) and groupregion interactions were not significant (P = 0.740). For the DC technique, the majority of the fracture patterns (73.3%) were adhesive at the interface between dual-curing resin cement and adhesive. For the LCSA technique, the majority of the fracture patterns (71.7%) were adhesive at the interface between light-curing self-adhering resin composite and dentine. Conclusions The interfacial strength between light-curing self-adhering resin composite and root canal walls is equivalent to the interfacial strength between dual-curing cement and root canal walls.

Item Type:	Journal Article
Subjects:	R Medicine > R Medicine (General)
Divisions:	Faculty of Medicine > Warwick Medical School
Journal or Publication Title:	International Endodontic Journal
Publisher:	Wiley-Blackwell Publishing Ltd.
ISSN:	0143-2885
Official Date:	March 2012
Volume:	Vol.45
Number:	No.3
Number of Pages:	8
Page Range:	pp. 249-256
Identification Number:	10.1111/j.1365-2591.2011.01969.x
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/42151

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