Bis[2-(Methacryloyloxy) Ethyl] Phosphate as a Primer for Enamel and Dentine
| Autor: | Subir Banerji, Garrit Koller, Sanjukta Deb, R. Alkattan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
dental etching
02 engineering and technology Dental bonding Degree of polymerization phosphoric acid esters Phosphates 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine stomatognathic system Tensile Strength Materials Testing Dental Enamel General Dentistry Phosphoric acid Enamel paint Biomaterials & Bioengineering dental bonding matrix metalloproteinases Research Reports 030206 dentistry 021001 nanoscience & nanotechnology Phosphate Resin Cements Demineralization chemistry Polymerization visual_art polymerization Dentin-Bonding Agents Dentin visual_art.visual_art_medium Microscopy Electron Scanning Methacrylates Adhesive adhesives 0210 nano-technology Nuclear chemistry |
| Zdroj: | Journal of Dental Research |
| ISSN: | 1544-0591 0022-0345 |
| Popis: | Dental resin composites are commonly used in the restorative management of teeth via adhesive bonding, which has evolved significantly over the past few decades. Although current self-etch bonding systems decrease the number of clinical steps, the acidic functional monomers employed exhibit a limited extent of demineralization of enamel in comparison to phosphoric acid etchants, and the resultant superficial ionic interactions are prone to hydrolysis. This study evaluates the etching of primers constituted with bis[2-(methacryloyloxy) ethyl] phosphate (BMEP) of dental hard tissue, interfacial characteristics, and inhibition of endogenous enzymes. We examine the incorporation of 2 concentrations of BMEP in the formulation of experimental primers used with a hydrophobic adhesive to constitute a 2-step self-etching bonding system and compare to a commercial 10–methacryloyloxydecyl dihydrogen phosphate (10-MDP)–containing system. The interaction of the primer with enamel and dentine was characterized using scanning electron, confocal laser scanning, and Raman microscopy while the polymerization reaction between the BMEP primers and hydroxyapatite was evaluated by Fourier-transform infrared spectroscopy. The inhibitory effect against matrix metalloproteinase (MMP) enzymes of these primers was studied and percentage of inhibition analyzed using 1-way analysis of variance and Tukey’s post hoc test ( P < 0.05). Results of the scanning electron microscopy micrographs demonstrated potent etching of both enamel and dentine with the formation of longer resin tags with BMEP primers compared to the 10-MDP–based system. The BMEP polymerized on interaction with pure hydroxyapatite in the dark, while the 10-MDP primer exhibited the formation of salts. Furthermore, BMEP primers were able to inhibit MMP activity in a dose-dependent manner. BMEP could be used as a self-etching primer on enamel and dentine, and the high degree of polymerization in the presence of hydroxyapatite can contribute to an increased quality of the resin polymer network, prompting resistance to gelatinolytic and collagenolytic degradation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|