Effect of Thermocycling, Degree of Conversion, and Cavity Configuration on the Bonding Effectiveness of All-in-One Adhesives

Operative Dentistry
H M El-Damanhoury, M Gaintantzopoulou

Abstract

The aim of this study was to compare five all-in-one bonding agents with respect to microleakage, microtensile bond strength (μTBS), degree of conversion (DC) and the impact of cavity configuration. The materials tested were Adper Easy Bond, Clearfil S3 Bond, iBond, Optibond All-in-One, Xeno IV, and Adper Single Bond Plus as a control. The DC of each adhesive was measured on the surfaces of dentin discs (n=5) by attenuated total reflectance Fourier transform infrared spectroscopy. One hundred and forty-four extracted human molars were randomly divided and assigned to one of the five tested adhesives and the control group. The μTBS to dentin was measured on flat occlusal dentin with and without thermocycling and to the gingival floor dentin of class II cavities (n=8). All specimens were restored with Filtek Z250 resin composite. Class II samples were immersed in a 5% methylene blue dye solution for 24 hours, and microleakage was examined under a stereomicroscope. Micromorphological analysis of demineralized/deproteinized specimens was done using scanning electron microscopy. The DC and microleakage data were statistically analyzed by one-way analysis of variance (ANOVA) and μTBS data by two-way ANOVA followed by a Bonferroni mul...Continue Reading

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Citations

Nov 1, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·Aline Aredes BicalhoCarlos José Soares
Nov 26, 2015·Journal of Oral Biology and Craniofacial Research·Vijay Kumar ShakyaRakesh Kumar Yadav
Sep 11, 2016·Materials Science & Engineering. C, Materials for Biological Applications·Carlos Alberto Kenji ShimokawaRichard Bengt Price
Apr 6, 2016·Operative Dentistry·C O NavarraL Breschi

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