Abstract
Hybridization process for dentin is well known, but remains a difficult challenge as it is dependent on many factors related to dentin substrate, adhesive nature including its solvent. The development of universal adhesives followed the all-in-one concept of existing one-step self-etch adhesives, thus requiring water in their formulation to ionize hydrophilic acid monomers. Most often, carboxylate and/or phosphate groups are their primary functional monomers [1]. Jee, et al. published in 2016 that ethanol molecules penetrate via increasing solvent accessible surfaces induced by the rearrangement of collagen monomers in the gap region [2]. The aim of this study is to evaluate the discrepancy in dentin permeability after application of a universal adhesive used in self-etching (SE) mode or etch and rinse (E&R) mode, by means of hydraulic conductance measurement.
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