Abstract
Dentin bonding is a key in restorative dentistry. Here, we developed a self-etching two-bottle adhesive system containing 10-methacryloyloxidecyl dihydrogen phosphate monomer (MDP) and the physical, mechanical, and biocompatible properties were evaluated. The characteristics of MDP were analyzed using nuclear magnetic resonance (NMR). Tests for water sorption and solubility, the shear-bond strengths to dentin and enamel, and cytotoxicity were performed. The newly-blended experimental group showed the lowest thickness and water sorption and solubility values. The shear bond strength of enamel and dentin were comparable to control groups (the three other products were ClearfilTM, UniFil®, and AdheSE®). All test groups showed 60% of cell viability. In this study, the properties of the newly-synthesized adhesive are comparable with the others. The fundamental goal of this study is to get the MDP patent released, as it is intended for domestic production. For this purpose, this dentin adhesive was developed and compared with the commercial product.
Highlights
The dental adhesive market has been increasing over the last half century, with dentin adhesives being developed along with other restorative materials in dentistry
The monomer was dissolved in acetone and 1 H nuclear magnetic resonance (NMR) spectrum analysis was performed
Each hydrogen network was written in the chemical structure
Summary
The dental adhesive market has been increasing over the last half century, with dentin adhesives being developed along with other restorative materials in dentistry. Many new adhesives have been proposed in recent times. With better understanding of the smear layer and composition of dentin, the formulation of dentine adhesives has changed over time [1]. At the time of using the dental adhesive of the no-etch system, all adhesives were required to have total etching such as a phosphoric acid for improvement of bond strength. After that, when using the total-etch system, the wet bonding system was introduced, and enamel and dentin were treated differently [2]. The acidic functional self-etching monomer was introduced, and self-etching adhesives were developed. The etching system has shown various paradigms, and as a result, the etching system has been developed in various ways
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