Abstract |
The adhesion of fiber posts luted with simplified adhesive systems has been a matter of great interest over the past years. The aim of this study was to assess the post retentive potential of experimental self-adhesive resin cement (EXP) when used alone and in combination with a self-etch adhesive. Fiber posts were placed in endodontically treated teeth and divided into four groups (n = 6) according the luting material, as follows: group 1 (EXP alone); group 2 (EXP used with self-etch adhesive); group 3 (marketed dual-cured cement used with self-etch adhesive); and group 4 (marketed self- adhesive cement). The push-out test was used to assess the retentive strength of fiber posts (expressed in MPa), and specimens were analyzed under a stereomicroscope to determine failure mode. The adhesive interface between the cement and root canal dentin for each group was evaluated using scanning electron microscopy. The post retentive potential of group 1 (EXP) (7.48 ± 4.35 MPa) was comparable with that of marketed cements from group 4 (6.79 ± 3.68 MPa) and group 3 (8.77 ± 4.58 MPa). When EXP was used in combination with self-etch adhesive (group 2), significantly higher push-out bond-strength values were measured (15.87 ± 4.68 MPa) compared with the other groups.
|
Authors | Jelena Juloski, Giovanni M Fadda, Ivana Radovic, Nicoletta Chieffi, Zoran R Vulicevic, Juan M Aragoneses, Marco Ferrari |
Journal | European journal of oral sciences
(Eur J Oral Sci)
Vol. 121
Issue 1
Pg. 50-6
(Feb 2013)
ISSN: 1600-0722 [Electronic] England |
PMID | 23331424
(Publication Type: Comparative Study, Journal Article)
|
Copyright | © 2012 Eur J Oral Sci. |
Chemical References |
- Composite Resins
- Dentin-Bonding Agents
- Resin Cements
|
Topics |
- Analysis of Variance
- Composite Resins
(chemistry)
- Dental Stress Analysis
(methods)
- Dentin-Bonding Agents
(chemistry)
- Humans
- Linear Models
- Microscopy, Electron, Scanning
- Post and Core Technique
- Resin Cements
(chemistry)
- Tooth, Nonvital
|