Bond strength and adhesive interface analysis using EDTA as a dentin conditioner

Micro‐shear bond strength of adhesives with different degrees of acidity: Effect on sound and artificially hypermineralized dentin

“…In this study, one and two-step self-etching adhesive systems with mild and moderate pH were used, and no significant statistical difference was observed between the normal dentin substrate and the artificially hypermineralized dentin substrate, except for the Bond, promote a more superficial and uniform hybrid layer, with a submicron thickness (Sebold et al, 2017), wherein the smear layer is F I G U R E 2 Scanning electron microscopy for the self-etching adhesive systems used in normal and artificially hypermineralized dentine, with 1,000 times magnification retained in the hybridized complex (Perdigão, 2010) and the hydroxyapatite crystal residues remain available to interact with the monomer that infiltrate the region Van Meerbeek et al, 2011). This is possible because of the presence of the phosphatebased monomer called 10 MDP (10-Methacryloyloxydecyl dihydrogen phosphate), present in these materials.…”

“…In this context, total‐etch adhesive systems are considered the gold standard (Florescu, Efrem, Haidoiu, Hertzog, & Bîcleşanu, ). Although acid conditioning provides acceptable adhesion strength (Sebold, André, Ambrosano, Nascimento, & Giannini, ), errors in the clinical stages of this system, especially when performed on the dentin substrate, can result in adhesive failure, as it induces structural changes in collagen and proteoglycans, promoting a modified organic content (Breschi et al, ). Thus, it is important to observe that dentin hybridization can be influenced by different factors such as the composition and the application protocols of the adhesive systems, in addition to the inherent characteristics of the substrate (Leite et al, ).…”

“…The mild pH adhesive systems, Clearfil S 3 Bond and Clearfil SE Bond, promote a more superficial and uniform hybrid layer, with a submicron thickness (Sebold et al, ), wherein the smear layer is retained in the hybridized complex (Perdigão, ) and the hydroxyapatite crystal residues remain available to interact with the monomer that infiltrate the region (Cardoso et al, ; Van Meerbeek et al, ). This is possible because of the presence of the phosphate‐based monomer called 10 MDP (10‐Methacryloyloxydecyl dihydrogen phosphate), present in these materials.…”

“…The 10 MDP monomer can initiate a chemical interaction, reacting with the calcium present in the residual hydroxyapatite crystals and creating calcium salts (Kwong et al, ; Leite et al, ; Sebold et al, ; R. Wang et al, ), which is considered effective and stable in aqueous solution (Cardoso et al, ; Van Meerbeek et al, ). Its chemical structure with high adhesion and stability contribute to the bonding durability and improve the initial performance of these adhesives (R. Wang et al, ), which was observed in the present study.…”

“…The 10 MDP monomer can initiate a chemical interaction, reacting with the calcium present in the residual hydroxyapatite crystals and creating calcium salts (Kwong et al, 2002;Leite et al, 2018;Sebold et al, 2017;R. Wang et al, 2017), which is considered effective and stable in aqueous solution Van Meerbeek et al, 2011).…”