10.25241/stomaeduj.2019.6(2).art.3-abstract

DENTAL MATERIALS

Effects of etching mode on bond strength of universal adhesives

DOI: https://doi.org/10.25241/stomaeduj.2019.6(2).art.3

Abstract

Introduction The aim of this study was to analyze the bond strength to dentin produced by new universal adhesive systems used in self-etch and etch-and rinse application modes.
Materials and Methods Sixty human teeth were divided in 6 groups according to the different universal adhesive systems: Scotchbond Universal (SBU – 3M ESPE), Clearfil Universal (CFU – Kuraray), Futurabond U (FBU – VOCO) Xeno Select (XS – Dentsply De Trey), Prime&Bond Elect (PBE – Dentsply Caulk) and All Bond Universal (ABU, Bisco). Then, the teeth were subdivided into 2 subgroups, according to the application mode: etch-and-rinse or self-etch. Composite crowns were built after application of the adhesive systems and the restored teeth were sectioned in both “X” and “Y” directions into sticks with a cross-sectional bonded area of approximately 1mm2. The microtensile test was carried on a universal testing machine operated at a crosshead speed of 1mm/min. Bond strength values were statistically evaluated using two-way ANOVA and the Tukey post-hoc test.
Results SBU, XS and ABU presented significantly higher bond strength values when applied on the etch-and-rinse mode (p<0.05). CFU, FBU and PBE presented no significant difference in bond strength values between etch-and-rinse and self-etching groups (p>0.05).
Conclusion The adhesive performance of Universal Adhesives was similar or higher when they were used in the etch-and-rinse mode in comparison with the self-etching mode.
Keywords Acid etching; Dental; Bond strength; Dental bonding; Universal adhesives

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STOMATOLOGY EDU JOURNAL (Stoma Edu J) is a new international dental journal whose main purpose is to inform researchers, educators, graduates, postgraduates and practitioners about the latest trends in the field, which followed, would bring immediate and lasting benefits to the patients; and about opinions of the most authorized specialists on what is best in current practice, for the good of both, patient and dentist.
STOMATOLOGY EDU JOURNAL (Stoma Edu J) is a peer-reviewed, open access international dental journal to be database indexed, meant to contribute to the development and completion of the medical training of practitioners as Dr. Greene Vardiman Black stated: “the professional man has no right to be other than a continual student”.
Open access journal, means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author.