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Šístková J, Fialová T, Svoboda E, Varmužová K, Uher M, Číhalová K, Přibyl J, Dlouhý A, Pávková Goldbergová M. Insight into antibacterial effect of titanium nanotubular surfaces with focus on Staphylococcus aureus and Pseudomonas aeruginosa. Sci Rep 2024; 14:17303. [PMID: 39068252 PMCID: PMC11283573 DOI: 10.1038/s41598-024-68266-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024] Open
Abstract
Materials used for orthopedic implants should not only have physical properties close to those of bones, durability and biocompatibility, but should also exhibit a sufficient degree of antibacterial functionality. Due to its excellent properties, titanium is still a widely used material for production of orthopedic implants, but the unmodified material exhibits poor antibacterial activity. In this work, the physicochemical characteristics, such as chemical composition, crystallinity, wettability, roughness, and release of Ti ions of the titanium surface modified with nanotubular layers were analyzed and its antibacterial activity against two biofilm-forming bacterial strains responsible for prosthetic joint infection (Staphylococcus aureus and Pseudomonas aeruginosa) was investigated. Electrochemical anodization (anodic oxidation) was used to prepare two types of nanotubular arrays with nanotubes differing in dimensions (with diameters of 73 and 118 nm and lengths of 572 and 343 nm, respectively). These two surface types showed similar chemistry, crystallinity, and surface energy. The surface with smaller nanotube diameter (TNT-73) but larger values of roughness parameters was more effective against S. aureus. For P. aeruginosa the sample with a larger nanotube diameter (TNT-118) had better antibacterial effect with proven cell lysis. Antibacterial properties of titanium nanotubular surfaces with potential in implantology, which in our previous work demonstrated a positive effect on the behavior of human gingival fibroblasts, were investigated in terms of surface parameters. The interplay between nanotube diameter and roughness appeared critical for the bacterial fate on nanotubular surfaces. The relationship of nanotube diameter, values of roughness parameters, and other surface properties to bacterial behavior is discussed in detail. The study is believed to shed more light on how nanotubular surface parameters and their interplay affect antibacterial activity.
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Affiliation(s)
- Jana Šístková
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Tatiana Fialová
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, Brno, 613 00, Czech Republic
| | - Emil Svoboda
- Department of Mechanical Engineering, Faculty of Military Technology, University of Defence, Kounicova 65, Brno, 662 10, Czech Republic
| | - Kateřina Varmužová
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Martin Uher
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Kristýna Číhalová
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, Brno, 613 00, Czech Republic
| | - Jan Přibyl
- Central European Institute for Technology, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Antonín Dlouhý
- Institute of Physics of Materials, Czech Academy of Sciences, v. v. i., Žižkova 513/22, Brno, 616 62, Czech Republic
| | - Monika Pávková Goldbergová
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.
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Special Issue on Materials and Technologies in Oral Research. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12147345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The introduction of novel materials and technologies in oral research has permitted the rapid evolution of dentistry, as confirmed by the increasing number of publications on this topic [...]
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D’Ercole S, Dotta TC, Farani MR, Etemadi N, Iezzi G, Comuzzi L, Piattelli A, Petrini M. Bacterial Microleakage at the Implant-Abutment Interface: An In Vitro Study. Bioengineering (Basel) 2022; 9:277. [PMID: 35877328 PMCID: PMC9311948 DOI: 10.3390/bioengineering9070277] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/18/2022] [Accepted: 06/22/2022] [Indexed: 11/28/2022] Open
Abstract
The objective of this study is to evaluate, in vitro, the microleakage of bacteria of 3 different implant connections for a period of 14 days. 60 dental implants (AoN) (n = 20) were distinguished into three groups, accordingly to the type of connection: External Hexagon (EH), Internal Hexagon (IH), and Cone Morse (CM) connection. All implants were inserted and fixed on sterile special vinyl support. Ten fixtures for each group were inoculated in the internal platform with 1.0 μL of Streptococcus oralis (SO) and the other ten with the same amount of Pseudomonas aeruginosa (PA). The penetration of bacterial suspension into the surrounding solution was determined by the observation of the turbidity of the broth. Five implants for each sub-group were randomly observed at SEM, to verify the correct fitting of the abutments. Considering the total of the samples analyzed, CM showed significantly lower bacterial contamination, with respect to IH. In particular, bacterial contamination was found in 45%, 55%, and 20% of EH, IH, and CM, respectively. Analyzing results for the type of inoculated bacteria, P. aeruginosa showed a higher ability to contaminate all the connections, with respect to S. oralis.
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Affiliation(s)
- Simonetta D’Ercole
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy; (S.D.); (G.I.)
| | - Tatiane Cristina Dotta
- Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo 05508-070, Brazil;
| | - Marzieh Ramezani Farani
- Toxicology and Diseases Group (TDG), Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran 1416634793, Iran;
| | - Niloofar Etemadi
- Department of Materials Engineering-Tissue Engineering Najafabad Branch, Islamic Azad University, Isfhan 6134937333, Iran;
| | - Giovanna Iezzi
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy; (S.D.); (G.I.)
| | - Luca Comuzzi
- Private Practice, San Vendemiano-Conegliano, 31020 Treviso, Italy;
| | - Adriano Piattelli
- School of Dentistry, Saint Camillus International University for Health Sciences (Unicamillus), 00131 Rome, Italy;
- Fondazione Villa Serena per la Ricerca, 65013 Città Sant’Angelo, Italy
- Casa di Cura Villa Serena, 65013 Città Saint’Angelo, Italy
| | - Morena Petrini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy; (S.D.); (G.I.)
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