20.500.12556/RUL-142785 Antibacterial effect of polymethyl methacrylate resin base containing ▫$TiO_2$▫ nanoparticles Restorations in dentistry must reproduce the aspect of the patient’s natural teeth and require non-toxicity, biocompatibility, and good mechanical properties in order to last longer. Restorations are permanently in contact with microbes that can adhere to and form biofilms. The purpose of this study was to determine the adhesion extent of Streptococcus mutans to polymethyl methacrylate (PMMA) resin base containing TiO2 nanoparticles. To understand the adhesion of Streptococcus mutans on the modified resin-based surfaces, the following surface properties were measured: the roughness, contact angle, zeta potential and CIE color parameters. Evaluation of tensile stress performance in TiO2 modified PMMA showed that the maximum tensile stress of the modified PMMA resin decreases with an increasing amount of TiO2 nanoparticles. The increasing amount of TiO2 decreases the roughness and causes contact angles in the border between hydrophilic and hydrophobic surfaces. All the studied surfaces are negatively charged and added TiO2 tends to increase the zeta potential. The addition of TiO2 nanoparticles increases the lightness and decreases the intensity of the red and yellow color. The increasing addition of TiO2 nanoparticles into PMMA increases the morphological change of bacterial cells. bacterial adhesion Streptococcus mutans polymethyl methacrylate resin TiO2 surface properties bakterijska adhezija Streptococcus mutans polimetil metakrilatna smola TiO2 površinske lastnosti true false true Angleški jezik Ni določen Članek v reviji 2022-11-25 11:34:11 2022-11-25 11:34:16 2022-11-26 03:41:47 0000-00-00 00:00:00 2022 0 0 17 str. no. 11, art. 1757 Vol. 12 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-01-01 577:620-1/.2 2079-6412 10.3390/coatings12111757 129678851 Zore-2022-Antibacterial-effect-of-polymethyl-.pdf Zore-2022-Antibacterial-effect-of-polymethyl-.pdf 1 318AC51EA123C2C2F428D81EC178A0A7 db31a829eb098b590bdc9f1f2c93cee2e99aa62841fd5cdb602a95ad2a1f4ece eefbb44b-6cac-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=164264 https://www.mdpi.com/2079-6412/12/11/1757 0 ea27fc05-6cac-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=164263 Zdravstvena fakulteta Biotehniška fakulteta 0 0 0