20.500.12556/DKUM-92855 Comparative evaluation of corrosion resistance of AISI 316L and Ti6Al4V dental materials under simulated inflammatory conditions Titanium and its alloys, as well as stainless steel, are commonly used materials for implants in the human body due to their excellent biocompatibility, corrosion resistance, and mechanical properties. However, the long-term performance of these materials in the oral cavity can be affected by the complex oral environment, including the ingestion of food, beverages, and oral hygiene products, leading to the presence of various ions, pH fluctuations, and inflammatory processes. In this study, the corrosion properties of two biocompatible materials, Ti6Al4V and AISI 316L stainless steel, are investigated under varying oral inflammatory conditions. Using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), SEM, and EDS analysis, the corrosion behaviour of both materials was analysed in environments simulating mild and severe inflammation. Results indicate that Ti6Al4V exhibits superior corrosion resistance at low H2O2 concentrations mimicking mild inflammation, with significantly lower corrosion rates compared to AISI 316L. However, at higher H2O2 concentrations, which correspond to severe inflammation, AISI 316L shows better resistance despite its susceptibility to pitting corrosion. Both alloys show reduced passivation after 72 h, with corrosion products accumulating on the surface after 96 h, contributing to repassivation. These results emphasise the need for individualized material selection in dental applications based on a patient’s susceptibility to oral inflammation. corrosion EIS inflammatory conditions titanium stainless steel dental materials korozija titanij zobni materiali true true false MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/1996-1944/18/10/2243 © 2025 by the author Članek v reviji 2025-05-19 15:51:00 2025-05-19 15:51:00 2025-05-20 03:15:23 0000-00-00 00:00:00 2025 0 0 14 str. issue 10, ǂ[article no.] ǂ2243 Vol. 18 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2025-04-10 2025-04-26 2025-05-12 620.1/.2 235992579 10.3390/ma18102243 1996-1944 materials-18-02243.pdf materials-18-02243.pdf 1 A1686B3F93BC5E4D02BF4A3BBAC1D221 cd636ebbe8bc610e9e205ccb30848ead62efb50f3899662a88a4779a0fce048f 80005c61-34b8-11f0-ad3e-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=191114 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0