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- Title
Fiber post adhesion to radicular dentin: The use of acid etching prior to a one-step self-etching adhesive.
- Authors
Scotti, Nicola; Rota, Riccardo; Scansetti, Marco; Migliaretti, Giuseppe; Pasqualini, Damiano; Berutti, Elio
- 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.
- Subjects
ADHESIVES; ANALYSIS of variance; BIOPHYSICS; DENTAL acid etching; DENTIN; ELECTRON microscopy; RESEARCH methodology; SAMPLE size (Statistics); STATISTICAL significance; DATA analysis software; DESCRIPTIVE statistics
- Publication
Quintessence International, 2012, Vol 43, Issue 7, p615
- ISSN
0033-6572
- Publication type
Article