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Fiber post adhesion to radicular dentin: The use of acid etching prior to a one-step self-etching adhesive.
- Source :
- Quintessence International; Jul/Aug2012, Vol. 43 Issue 7, p615-623, 9p, 9 Black and White Photographs, 1 Chart
- Publication Year :
- 2012
-
Abstract
- The aim of this study was to evaluate the bond strength of fiber posts luted with a one-step self-etching adhesive with the push-out test after phosphoric acid conditioning of the root dentin. Thirty-six single-rooted teeth were endodontically treated. Teeth were sectioned perpendicularly to the cementoenamel junction, and a 10-mm post space was prepared with a calibrated bur. Specimens were then divided into three groups according to the adhesive protocol: A, total-etch three steps; B, self-etch one step; and C, 32% phosphoric acid conditioning and self-etch one step. Fiber posts were luted with self-curing resin- based cement. Teeth were cut in 1-mm slices and pushed until failure with an Instron machine. Results were statistically analyzed with the ANOVA and Bonferroni tests (P < .05). Two additional specimens from each group were examined under the scanning electron microscope (SEM). The 32% phosphoric acid significantly intiuenced the push-out bond strength of fiber posts luted with self-etch adhesives (P < .05). SEM analysis showed a continuous hybrid iayer with resin tags and iaterai branches in groups A and C, while group B showed smear iayer dissolution with poor intiitration of the tubules. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00336572
- Volume :
- 43
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Quintessence International
- Publication Type :
- Academic Journal
- Accession number :
- 76247577