Effect of Modified Bioceramic Mineral Trioxide Aggregate Cement with Mesoporous Nanoparticles on Human Gingival Fibroblasts

• Published in: Current Issues in Molecular Biology Vol. 46; no. 4; pp. 3005 - 3021
• Main Authors: Kalash, Alexandra, Tsamesidis, Ioannis, Pouroutzidou, Georgia K, Kontonasaki, Eleana, Gkiliopoulos, Dimitrios, Arhakis, Aristidis, Arapostathis, Konstantinos N, Theocharidou, Anna
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 01.04.2024
• Subjects: Antioxidants; calcium doping; Cerium; cerium doping; Human acts; Human behavior; human gingival fibroblasts; Instrument industry; mesoporous silica nanoparticles; MTA; Nanoparticles; Silica; Japan; cerium doping; calcium doping; mesoporous silica nanoparticles; human gingival fibroblasts; MTA
• ISSN: 1467-3045; 1467-3037; 1467-3045
• DOI: 10.3390/cimb46040188

The ion doping of mesoporous silica nanoparticles (MSNs) has played an important role in revolutionizing several materials applied in medicine and dentistry by enhancing their antibacterial and regenerative properties. Mineral trioxide aggregate (MTA) is a dental material widely used in vital pulp therapies with high success rates. The aim of this study was to investigate the effect of the modification of MTA with cerium (Ce)- or calcium (Ca)-doped MSNs on the biological behavior of human gingival fibroblasts (hGFs). MSNs were synthesized via sol-gel, doped with Ce and Ca ions, and mixed with MTA at three ratios each. Powder specimens were characterized using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). Biocompatibility was evaluated using a 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT) assay following hGFs' incubation in serial dilutions of material eluates. Antioxidant status was evaluated using Cayman's antioxidant assay after incubating hGFs with material disc specimens, and cell attachment following dehydration fixation was observed through SEM. Material characterization confirmed the presence of mesoporous structures. Biological behavior and antioxidant capacity were enhanced in all cases with a statistically significant increase in CeMTA 50.50. The application of modified MTA with cerium-doped MSNs offers a promising strategy for vital pulp therapies.