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Push‐out bond strength of an experimental self‐adhesive resin cement
Author(s) -
Juloski Jelena,
Fadda Giovanni M.,
Radovic Ivana,
Chieffi Nicoletta,
Vulicevic Zoran R.,
Aragoneses Juan M.,
Ferrari Marco
Publication year - 2013
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/eos.12005
Subject(s) - adhesive , bond strength , self adhesive , materials science , dentistry , dentin , stereo microscope , composite material , cement , dental cement , root canal , medicine , layer (electronics)
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 MP a), 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 MP a) was comparable with that of marketed cements from group 4 (6.79 ± 3.68 MP a) and group 3 (8.77 ± 4.58 MP a). 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 MP a) compared with the other groups.