Corrosion behavior of surface modifications on titanium dental implant. In situ bacteria monitoring by electrochemical techniques

Abstract

The effects of surface modifications and bacteria on the corrosion behavior of titanium have been studied. Five surface modifications were analyzed: two acid etchings (op V, op N), acid etching + anodic oxidation (op NT), sandblasting + acid etching (SLA), and machined surfaces (mach). The corrosion behavior of the surface modifications was evaluated by following the standard ANSI/AAMI/ISO 10993-15:2000. Cyclic potentiodynamic and potentiostatic anodic polarization tests and ion release by ICP-OES after immersion for 7 days in 0.9% NaCl were carried out. Microbiologically induced corrosion (MIC) of low and high roughness (mach, op V) was assessed in situ by electrochemical techniques. Streptococcus mutans bacteria were resuspended in PBS at a concentration of 3 × 10 bacteria mL and maintained at 37°C. MIC was measured through the open circuit potential, E , and electrochemical impedance spectroscopy from 2 to 28 days. Potentiodynamic curves showed the typical passive behavior for all the surface modifications. The titanium ion release after immersion was below 3 ppb. In situ bacteria monitoring showed the decrease in E from -0.065 (SD 0.067) V in mach and -0.115 (SD 0.084) V in op V, to -0.333 (SD 0.147) V in mach and -0.263 (SD 0.005) V in op V, after 2 and 28 days, respectively. A reduction of the oxide film resistance, especially in op V (54 MΩ cm and 6 MΩ cm , after 2 and 28 days, respectively) could be seen. Streptococcus mutans negatively affected the corrosion resistance of titanium. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 997-1009, 2018.

Effect of Alloying Mn by Selective Laser Melting on the Microstructure and Biodegradation Properties of Pure Mg

“…The biodegradation rate, P i (mm year −1 ), was evaluated from the corrosion current density, i corr (current density) (mA cm −2 ), using the conversion P i = 22.85 i corr [17]. Immersion tests were conducted for 168 h. The ratio of surface area/solution volume was 1.25 cm 2 /mL according to ISO10993 [18]. After immersion tests, the samples were cleaned by chromic acid solution (300 g/L Cr 2 O 3 + 10 g/L AgNO 3 ) to remove the surface corrosion products, and then were weighed.…”

Effect of Autoclaving Time on Corrosion Resistance of Sandblasted Ti G4 in Artificial Saliva

“…No peaks originating from Al were detected that would indicate that Al 2 O 3 particles stuck into the titanium surface during the sandblasting process. Such an unfavorable phenomenon was previously observed in the literature when corundum 90 µm was used for sandblasting titanium dental implants [ 58 ]. Alumina particles were identified by energy dispersive X-ray spectroscopy on the sandblasted surface of titanium and attributed to sandblasting residues that could not be removed even after acid etching.…”

Assessing the Potential Association Between Microbes and Corrosion of Intra-Oral Metallic Alloy-Based Dental Appliances Through a Systematic Review of the Literature

“…Of the 25 articles selected 5 were from the USA (Vaidyanathan et al, 1991;Chang et al, 2003;Oshida et al, 2003;Pozhitkov et al, 2015;Sridhar et al, 2016), 3 each were from Japan (Fukushima et al, 2014;Kameda et al, 2014Kameda et al, , 2019, Portugal (Souza et al, 2010;Proença et al, 2015;Figueiredo-Pina et al, 2019), France (Laurent et al, 2001;Mabilleau et al, 2006;Jorand et al, 2015), Poland (Mystkowska, 2016;Cwalina et al, 2017;Mystkowska et al, 2017), 2 each from Brazil (Heggendorn et al, 2015;Zavanelli et al, 2015) and China (Zhang et al, 2013;Lu et al, 2017), 1 each from Croatia (Pavlic et al, 2019), Spain (Díaz et al, 2018), Italy (Lucchetti et al, 2015), and India (Maruthamuthu et al, 2005).…”

“…Vital data including the assessed metallic alloy, the microorganisms, the methodology employed for detecting the microbe, and for assessing the corrosion, the statistical data, and the inferences drawn were extracted from all the included studies (Table 1). Titanium (Ti) was assessed in 16 studies (Oshida et al, 2003;Maruthamuthu et al, 2005;Mabilleau et al, 2006;Souza et al, 2010;Fukushima et al, 2014;Kameda et al, 2014;Jorand et al, 2015;Pozhitkov et al, 2015;Mystkowska, 2016;Sridhar et al, 2016;Díaz et al, 2018;Figueiredo-Pina et al, 2019), stainless steel (SUS) in five studies (Chang et al, 2003;Oshida et al, 2003;Maruthamuthu et al, 2005;Kameda et al, 2014;Heggendorn et al, 2015;Mystkowska et al, 2017), nickel (NiCr) and cobalt-chromium (CoCr) alloys in seven studies (Laurent et al, 2001;Chang et al, 2003;Oshida et al, 2003;Lucchetti et al, 2015;Proença et al, 2015;Mystkowska, 2016;Lu et al, 2017), neodymium-iron, zirconia (Figueiredo-Pina et al, 2019, amalgam and copper aluminum alloy (Zavanelli et al, 2015) and precious metal alloys (Vaidyanathan et al, 1991) were each assessed on one study. The bacteria that were studied include probiotic bacteria Lactobacillus reuteri (Pavlic et al, 2019), Streptococcus (S.) mutans (Chang et al, 2003;Oshida et al, 2003;Souza et al, 2010;Fukushima et al, 2014;…”