Effect of fluoride mouthrinse and fluoride concentration on bonding of a one-step self-etch adhesive to bovine root dentin

This study investigated the effect of fluoride mouthrinses on bonding of a one-step self-etch adhesive to bovine root dentin. Application of a NaF solution (0, 450, 900, or 9,000 ppm) to bovine root dentin surfaces was performed for 30 s (immediate) or before bonding of an all-in-one adhesive. Micro...

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Bibliographic Details
Published in:Journal of Oral Science 2019, Vol.61(1), pp.125-132
Main Authors: Nakamoto, Ayako, Sato, Takaaki, Matsui, Naoko, Ikeda, Masaomi, Nikaido, Toru, Burrow, Michael F., Tagami, Junji
Format: Article
Language:English
Subjects:
ABRZ
Acid Etching, Dental
Animals
bovine root dentin
Cattle
Dental Cements - chemistry
Dental Stress Analysis
Dentin - chemistry
fluoride mouthrinse
Fluorides - administration & dosage
Microscopy, Electron, Scanning
Mouthwashes
one-step self-etching adhesive
Surface Properties
Tooth Fractures
Tooth Root
µTBS
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Summary:This study investigated the effect of fluoride mouthrinses on bonding of a one-step self-etch adhesive to bovine root dentin. Application of a NaF solution (0, 450, 900, or 9,000 ppm) to bovine root dentin surfaces was performed for 30 s (immediate) or before bonding of an all-in-one adhesive. Microtensile bond strength (µTBS) testing and scanning electron microscopic (SEM) observation of the acid-base resistance zone (ABRZ) were performed. µTBS values and calculated ABRZ areas were analyzed by using two-way ANOVA and the t-test with Bonferroni correction. The significance level was set at P = 0.05 (n = 30). Fracture mode was analyzed with the Mann-Whitney U test with Bonferroni correction. The significance level set at P = 0.00178 (n = 30). µTBS did not significantly differ between the control, 450 ppm F, and 900 ppm F specimens (P > 0.05) but was significantly lower in 9,000 ppm F specimens (P < 0.05). SEM showed a significant increase in acid resistance at the adhesive-dentin interface, including the ABRZ, after fluoride application.
ISSN:1343-4934
1880-4926
DOI:10.2334/josnusd.17-0466