Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/53483
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Effect of fluoride iontophoresis on the microtensile bond strength between dentin and two adhesive systems |
Author: | Chen, L. Meng, Q. Chen, Y. Smales, R. Yip, K. |
Citation: | Journal of Dentistry, 2008; 36(9):697-702 |
Publisher: | Elsevier Sci Ltd |
Issue Date: | 2008 |
ISSN: | 0300-5712 1879-176X |
Statement of Responsibility: | L.-J. Chen, Q.-F. Meng, Y.-M. Chen, R.J. Smales and K.H.-K. Yip |
Abstract: | <h4>Aim</h4>To evaluate the effect of fluoride iontophoresis on the microtensile bond strength (MTBS) between coronal dentin and two resin-based adhesive systems, and to measure quantitatively dentinal tubule occlusion.<h4>Methods</h4>Twelve freshly extracted intact human mandibular third molars were divided randomly into four groups. The superficial occlusal dentin of each tooth was exposed and treated. Group A1: One-Step Plus total-etch adhesive system; group A2: One-Step Plus total-etch adhesive system after fluoride iontophoresis; group B1: ACE BOND SE self-etching adhesive system; group B2: ACE BOND SE self-etching adhesive system after fluoride iontophoresis. A resin composite buildup was made for each tooth, which was then sectioned along its long axis to produce 10 beams (1.0 mm x 1.0 mm) for the microtensile bond strength (MTBS) test. Five dentin disks were cut in half and their occlusal surfaces etched with 6% citric acid. The test halves were treated with fluoride iontophoresis. Four SEM photomicrographs were taken from corresponding sites on each test and each non-treated control half-disk. Image-Pro Plus 4 software quantified the percentage of tubule occlusion. Data were analyzed using one-way ANOVA, chi(2)- and t-tests, with the probability level set at alpha=0.05.<h4>Results</h4>The mean MTBS (MPa) for each group was, A1: 30.86 (S.D. 6.84); A2: 25.04 (8.49); B1: 19.22 (6.88); B2: 19.40 (6.92). There were significant differences among all groups (P < or = 0.02), except between groups B1 and B2 (P=0.92). Fluoride iontophoresis resulted in significantly increased dentinal tubule occlusion (P<0.001).<h4>Conclusions</h4>Fluoride iontophoresis treatment reduced significantly the dentin bond strength of One-Step Plus total-etch adhesive, but not that of ACE BOND SE self-etching adhesive. However, the bond strength of the former remained significantly higher than that of the latter adhesive system. |
Keywords: | Molar Dentin Humans Dentin Sensitivity Fluorides Resin Cements Cariostatic Agents Dentin-Bonding Agents Microscopy, Electron, Scanning Iontophoresis Analysis of Variance Dental Bonding Acid Etching, Dental Dental Stress Analysis Surface Properties Tensile Strength |
Description: | Copyright © 2008 Elsevier Ltd All rights reserved. |
DOI: | 10.1016/j.jdent.2008.04.018 |
Description (link): | http://www.elsevier.com/wps/find/journaldescription.cws_home/30441/description#description |
Published version: | http://dx.doi.org/10.1016/j.jdent.2008.04.018 |
Appears in Collections: | Aurora harvest Dentistry publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.