Akademik Veri Yönetim Sistemi
Odontology, 2024 (SCI-Expanded)
This study aimed to investigate the surface hardness, monomer conversion, surface roughness, boron release, and water sorption-solubility properties of experimental resin composites (RC) containing hydroxyapatite nanocarriers (HAP) loaded with different boron compounds, in comparison to a conventional RC. In this study, boron nitride and 4-borono-l-phenylalanine were loaded into mesoporous and nonporous HAP. 1% boron-nanocarrier complexes were added to a conventional resin-composite content. The study groups were designated based on the boron compound and nanocarrier type: Group 1 (Control): (a conventional RC), Group 2: Experimental RC containing mesoporous HAP loaded with boron nitride (BN@MHAP), Group 3: Experimental RC containing nonporous HAP loaded with boron nitride (BN@HAP), Group 4: Experimental RC containing mesoporous HAP loaded with 4-borono-l-phenylalanine (BPA@MHAP), Group 5: Experimental RC containing nonporous HAP loaded with 4-borono-l-phenylalanine (BPA@HAP). Vickers microhardness, surface roughness, degree of monomer conversion, water sorption-solubility, and boron release analyses were conducted on the RC samples. The nanoparticles were characterized using the Energy Dispersive X-ray Spectroscopy (EDX) for elemental analysis and mapping, X-ray Diffraction (XRD) for examining crystal structure, Fourier-Transform Infrared Spectroscopy (FTIR) for evaluating molecular bond structure, and Scanning Electron Microscopy (SEM) for observing surface morphology of mesoporous and non-porous HAP. No statistically significant difference was found between the experimental RC materials containing boron-nanocarrier complexes and the control group in terms of monomer conversion, surface hardness, surface roughness, water sorption and solubility (p > 0.05). However, all experimental groups demonstrated significantly higher boron release rates over time (p < 0.05), with BN@HAP and BPA@MHAP groups exhibiting the highest release rates at all timepoints (p < 0.05). The addition of 1% BN@HAP/MHAP or BPA@HAP/MHAP to the RC is promising for developing an antibacterial RC capable of releasing boron without compromising the tested physico-chemical properties of the material.