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Schubert A, Griesmüller C, Gersdorff N, Bürgers R, Wiechens B, Wassmann T. Antibacterial coating of orthodontic elastomeric ligatures with silver and bismuth nanofilms by magnetron sputtering: A feasibility study. Clin Exp Dent Res 2024; 10:e864. [PMID: 38433291 PMCID: PMC10909824 DOI: 10.1002/cre2.864] [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: 05/26/2023] [Revised: 01/11/2024] [Accepted: 01/20/2024] [Indexed: 03/05/2024] Open
Abstract
OBJECTIVES Magnetron sputtering was evaluated to equip surfaces of orthodontic elastomeric ligatures with silver and bismuth nanofilms. MATERIAL AND METHODS Antibacterial properties were evaluated by the adhesion of Streptococcus mutans. Polyurethane-based elastomeric ligatures were coated with silver and bismuth nanofilms via direct current magnetron sputtering. Surface roughness (Ra ) and surface-free energy (SFE) were assessed. Coated specimens were incubated with S. mutans for 2 h. Adhering bacteria were visualized by Hoechst staining and quantified by an ATP-based luminescence assay. One-way analysis of variance with Tukey post hoc testing and Pearson correlation analysis were performed (p < .05) to relate bacterial adhesion to surface roughness and surface-free energy. RESULTS Elastomeric ligatures were successfully coated with silver and bismuth nanofilms. Ra was significantly reduced by silver coating. Silver and bismuth coatings showed significantly higher SFE than controls. Adhesion of S. mutans was significantly decreased by silver coating. No correlation between bacterial adhesion and SFE was found. Correlation between bacterial adhesion and Ra was positive but not statistically significant. CONCLUSIONS Magnetron sputtering proved to be a feasible method to equip orthodontic elastomeric ligatures with silver and bismuth nanofilms. Silver coatings of elastomeric ligatures may reduce white spots and carious lesions in orthodontic patients. Future research is required to stabilize coatings.
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Affiliation(s)
- Andrea Schubert
- Department of ProsthodonticsUniversity Medical Center GoettingenGoettingenGermany
| | - Carolin Griesmüller
- Department of ProsthodonticsUniversity Medical Center GoettingenGoettingenGermany
| | - Nikolaus Gersdorff
- Department of ProsthodonticsUniversity Medical Center GoettingenGoettingenGermany
| | - Ralf Bürgers
- Department of ProsthodonticsUniversity Medical Center GoettingenGoettingenGermany
| | - Bernhard Wiechens
- Department of OrthodonticsUniversity Medical Center GoettingenGoettingenGermany
| | - Torsten Wassmann
- Department of ProsthodonticsUniversity Medical Center GoettingenGoettingenGermany
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Kunrath MF, Gerhardt MDN. Trans-mucosal platforms for dental implants: Strategies to induce muco-integration and shield peri-implant diseases. Dent Mater 2023; 39:846-859. [PMID: 37537095 DOI: 10.1016/j.dental.2023.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 08/05/2023]
Abstract
OBJECTIVES Trans-mucosal platforms connecting the bone-anchored implants to the prosthetic teeth are essential for the success of oral rehabilitation in implant dentistry. This region promotes a challenging environment for the successfulness of dental components due to the transitional characteristics between soft and hard tissues, the presence of bacteria, and mechanical forces. This review explored the most current approaches to modify trans-mucosal components in terms of macro-design and surface properties. METHODS This critical review article revised intensely the literature until July 2023 to demonstrate, discuss, and summarize the current knowledge about marketable and innovative trans-mucosal components for dental implants. RESULTS A large number of dental implant brands have promoted the development of several implant-abutment designs in the clinical market. The progress of abutment designs shows an optimistic reduction of bacteria colonization underlying the implant-abutment gap, although, not completely inhibited. Fundamental and preclinical studies have demonstrated promising outcomes for altered-surface properties targeting antibacterial properties and soft tissue sealing. Nanotopographies, biomimetic coatings, and antibiotic-release properties have been shown to be able to modulate, align, orient soft tissue cells, and induce a reduction in biofilm formation, suggesting superior abilities compared to the current trans-mucosal platforms available on the market. SIGNIFICANCE Future clinical implant-abutments show the possibility to reduce peri-implant diseases and fortify soft tissue interaction with the implant-substrate, defending the implant system from bacteria invasion. However, the absence of technologies translated to commercial stages reveals the need for findings to "bridge the gap" between scientific evidences published and applied science in the industry.
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Affiliation(s)
- Marcel F Kunrath
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, P.O. Box 412, SE 405 30 Göteborg, Sweden; School of Health and Life Sciences, Post-Graduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil; School of Technology, Post-Graduate Program in Materials Technology and Engineering, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Maurício do N Gerhardt
- School of Health and Life Sciences, Post-Graduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
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Seo BY, Son K, Son YT, Dahal RH, Kim S, Kim J, Hwang J, Kwon SM, Lee JM, Lee KB, Kim JW. Influence of Dental Titanium Implants with Different Surface Treatments Using Femtosecond and Nanosecond Lasers on Biofilm Formation. J Funct Biomater 2023; 14:297. [PMID: 37367261 DOI: 10.3390/jfb14060297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/21/2023] [Accepted: 05/24/2023] [Indexed: 06/28/2023] Open
Abstract
This study aimed to evaluate the impact of different surface treatments (machined; sandblasted, large grit, and acid-etched (SLA); hydrophilic; and hydrophobic) on dental titanium (Ti) implant surface morphology, roughness, and biofilm formation. Four groups of Ti disks were prepared using distinct surface treatments, including femtosecond and nanosecond lasers for hydrophilic and hydrophobic treatments. Surface morphology, wettability, and roughness were assessed. Biofilm formation was evaluated by counting the colonies of Aggregatibacter actinomycetemcomitans (Aa), Porphyromonas gingivalis (Pg), and Prevotella intermedia (Pi) at 48 and 72 h. Statistical analysis was conducted to compare the groups using the Kruskal-Wallis H test and the Wilcoxon signed-rank test (α = 0.05). The analysis revealed that the hydrophobic group had the highest surface contact angle and roughness (p < 0.05), whereas the machined group had significantly higher bacterial counts across all biofilms (p < 0.05). At 48 h, the lowest bacterial counts were observed in the SLA group for Aa and the SLA and hydrophobic groups for Pg and Pi. At 72 h, low bacterial counts were observed in the SLA, hydrophilic, and hydrophobic groups. The results indicate that various surface treatments affect implant surface properties, with the hydrophobic surface using femtosecond laser treatment exerting a particularly inhibitory effect on initial biofilm growth (Pg and Pi).
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Affiliation(s)
- Bo Yun Seo
- Department of Oral & Maxillofacial Surgery, School of Dentistry, Kyungpook National University, Daegu 41940, Republic of Korea
| | - KeunBaDa Son
- Advanced Dental Device Development Institute (A3DI), Kyungpook National University, Daegu 41940, Republic of Korea
| | - Young-Tak Son
- Advanced Dental Device Development Institute (A3DI), Kyungpook National University, Daegu 41940, Republic of Korea
- Department of Dental Science, Graduate School, Kyungpook National University, Daegu 41940, Republic of Korea
| | - Ram Hari Dahal
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Shukho Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Jungmin Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
| | - JunHo Hwang
- Institute of Advanced Convergence Technology, Kyungpook National University, Daegu 41061, Republic of Korea
| | - Sung-Min Kwon
- Institute of Advanced Convergence Technology, Kyungpook National University, Daegu 41061, Republic of Korea
| | - Jae-Mok Lee
- Department of Periodontology, School of Dentistry, Kyungpook National University, Daegu 41940, Republic of Korea
| | - Kyu-Bok Lee
- Advanced Dental Device Development Institute (A3DI), Kyungpook National University, Daegu 41940, Republic of Korea
- Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu 41940, Republic of Korea
| | - Jin-Wook Kim
- Department of Oral & Maxillofacial Surgery, School of Dentistry, Kyungpook National University, Daegu 41940, Republic of Korea
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Chau Nguyen TT, Shin CM, Lee SJ, Koh ES, Kwon HH, Park H, Kim DH, Choi CH, Oh SH, Kim DW, Yang SY. Ultrathin Nanostructured Films of Hyaluronic Acid and Functionalized β-Cyclodextrin Polymer Suppress Bacterial Infection and Capsular Formation of Medical Silicone Implants. Biomacromolecules 2022; 23:4547-4561. [PMID: 36130109 PMCID: PMC9667880 DOI: 10.1021/acs.biomac.2c00687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 09/08/2022] [Indexed: 11/29/2022]
Abstract
A type of ultrathin films has been developed for suppressing capsule formation induced by medical silicone implants and hence reducing the inflammation response to such formation and the differentiation to myofibroblasts. The films were each fabricated from hyaluronic acid (HA) and modified β-cyclodextrin (Mod-β-CyD) polymer which was synthesized with a cyclodextrin with partially substituted quaternary amine. Ultrathin films comprising HA and Mod-β-CyD or poly(allylamine hydrochloride) (PAH) were fabricated by using a layer-by-layer dipping method. The electrostatic interactions produced from the functional groups of Mod-β-CyD and HA influenced the surface morphology, wettability, and bio-functional activity of the film. Notably, medical silicone implants coated with PAH/HA and Mod-β-CyD multilayers under a low pH condition exhibited excellent biocompatibility and antibiofilm and anti-inflammation properties. Implantation of these nanoscale film-coated silicones showed a reduced capsular thickness as well as reduced TGFβ-SMAD signaling, myofibroblast differentiation, biofilm formation, and inflammatory response levels. We expect our novel coating system to be considered a strong candidate for use in various medical implant applications in order to decrease implant-induced capsule formation.
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Affiliation(s)
- Thi Thuy Chau Nguyen
- Department
of Polymer Science and Engineering, Graduate
School of Chungnam National University, 99 Daehak-Ro, Yuseong-gu, Daejeon 34134, Republic
of Korea
| | - Chung Min Shin
- Department
of Plastic Surgery, Chungnam National University
School of Medicine, 266 Munhwa-Ro, Chung-Gu, Daejeon 35015, Republic of Korea
| | - Su Jin Lee
- Department
of Polymer Science and Engineering, Graduate
School of Chungnam National University, 99 Daehak-Ro, Yuseong-gu, Daejeon 34134, Republic
of Korea
| | - Eun Seo Koh
- Department
of Polymer Science and Engineering, Graduate
School of Chungnam National University, 99 Daehak-Ro, Yuseong-gu, Daejeon 34134, Republic
of Korea
| | - Hyeok Hee Kwon
- Department
of Medical Science, Chungnam National University
School of Medicine, 266
Munhwa-Ro, Chung-Gu, Daejeon 35015, Republic of Korea
| | - Hyewon Park
- Department
of Medical Science, Chungnam National University
School of Medicine, 266
Munhwa-Ro, Chung-Gu, Daejeon 35015, Republic of Korea
| | - Dong Ho Kim
- Department
of Microbiology, Chungnam National University
School of Medicine, 266
Munhwa-Ro, Chung-Gu, Daejeon 35015, Republic of Korea
- Department
of Medical Science, Chungnam National University
School of Medicine, 266
Munhwa-Ro, Chung-Gu, Daejeon 35015, Republic of Korea
| | - Chul Hee Choi
- Department
of Microbiology, Chungnam National University
School of Medicine, 266
Munhwa-Ro, Chung-Gu, Daejeon 35015, Republic of Korea
- Department
of Medical Science, Chungnam National University
School of Medicine, 266
Munhwa-Ro, Chung-Gu, Daejeon 35015, Republic of Korea
| | - Sang-Ha Oh
- Department
of Plastic Surgery, Chungnam National University
School of Medicine, 266 Munhwa-Ro, Chung-Gu, Daejeon 35015, Republic of Korea
| | - Dong Woon Kim
- Department
of Anatomy and Cell Biology, Chungnam National
University School of Medicine, 266 Munhwa-Ro, Chung-Gu, Daejeon 35015, Republic of Korea
| | - Sung Yun Yang
- Department
of Polymer Science and Engineering, Graduate
School of Chungnam National University, 99 Daehak-Ro, Yuseong-gu, Daejeon 34134, Republic
of Korea
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López-Píriz R, Goyos-Ball L, Cabal B, Martínez S, Moya JS, Bartolomé JF, Torrecillas R. New Ceramic Multi-Unit Dental Abutments with an Antimicrobial Glassy Coating. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5422. [PMID: 35955356 PMCID: PMC9369483 DOI: 10.3390/ma15155422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/24/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
The choice of suitable materials and new designs in oral implantology and the subsequent enhancement of the characteristics of the dental implant developed is an important research topic with wide scope. The present work aims to develop a new multifunctional zirconia-ceria/alumina (Ce-TZP/Al2O3) composite with an antimicrobial glass-based coating to be used in multi-unit abutments compatible with commercially available Ti implants for peri-implantitis prevention. An airbrush spraying technique was effectively applied to coat the sintered ceramic composite starting from a glass powder suspension. This deposition technique was appropriate for obtaining continuous antimicrobial glass-based coatings with homogenous thickness (~35 µm) on ceramic dental implant components. The dental implant systems with the antimicrobial glassy coating were subjected to a mechanical integrity test following ISO 14801 to determine their long-term stability. The tested implant-coating structure seems to be stable under in vitro conditions with ultimate applied forces exceeding the maximum physiological occlusal loading force. This paper also presents a pilot clinical case report that shows peri-implant tissue around the mechanically stable glass coating with no signs of inflammation 1 year after implant insertion. This result is a preliminary probe of the durability and biological tolerance of the glassy material by the gingiva, as well as the antimicrobial effect on the peri-implant microbiota displayed by the coating.
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Affiliation(s)
- Roberto López-Píriz
- Instituto de Cirugía Oral Avanzada-ICOA, Calle de Fray Luis de León, 14, 28012 Madrid, Spain
| | - Lidia Goyos-Ball
- Nanoker Research, Pol. Ind. Olloniego, Parcela 22A, Nave 5, 33660 Oviedo, Spain
| | - Belén Cabal
- Nanomaterials and Nanotechnology Research Centre (CINN), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Oviedo (UO), Principado de Asturias (PA), Avenida de la Vega 4-6, 33940 El Entrego, Spain
| | - Susana Martínez
- Nanoker Research, Pol. Ind. Olloniego, Parcela 22A, Nave 5, 33660 Oviedo, Spain
- Nanomaterials and Nanotechnology Research Centre (CINN), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Oviedo (UO), Principado de Asturias (PA), Avenida de la Vega 4-6, 33940 El Entrego, Spain
| | - José S. Moya
- Nanomaterials and Nanotechnology Research Centre (CINN), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Oviedo (UO), Principado de Asturias (PA), Avenida de la Vega 4-6, 33940 El Entrego, Spain
| | - José F. Bartolomé
- Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain
| | - Ramón Torrecillas
- Nanoker Research, Pol. Ind. Olloniego, Parcela 22A, Nave 5, 33660 Oviedo, Spain
- Nanomaterials and Nanotechnology Research Centre (CINN), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Oviedo (UO), Principado de Asturias (PA), Avenida de la Vega 4-6, 33940 El Entrego, Spain
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Li F, Liu F, Huang K, Yang S. Advancement of Gallium and Gallium-Based Compounds as Antimicrobial Agents. Front Bioeng Biotechnol 2022; 10:827960. [PMID: 35186906 PMCID: PMC8855063 DOI: 10.3389/fbioe.2022.827960] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/13/2022] [Indexed: 12/30/2022] Open
Abstract
With the abuse and misuse of antibiotics, antimicrobial resistance has become a challenging issue in the medical system. Iatrogenic and non-iatrogenic infections caused by multidrug-resistant (MDR) pathogens pose serious threats to global human life and health because the efficacy of traditional antibiotics has been greatly reduced and the resulting socio-economic burden has increased. It is important to find and develop non-antibiotic-dependent antibacterial strategies because the development of new antibiotics can hardly keep pace with the emergence of resistant bacteria. Gallium (III) is a multi-target antibacterial agent that has an excellent antibacterial activity, especially against MDR pathogens; thus, a gallium (III)-based treatment is expected to become a new antibacterial strategy. However, some limitations of gallium ions as antimicrobials still exist, including low bioavailability and explosive release. In recent years, with the development of nanomaterials and clathrates, the progress of manufacturing technology, and the emergence of synergistic antibacterial strategies, the antibacterial activities of gallium have greatly improved, and the scope of application in medical systems has expanded. This review summarizes the advancement of current optimization for these key factors. This review will enrich the knowledge about the efficiency and mechanism of various gallium-based antibacterial agents and provide strategies for the improvement of the antibacterial activity of gallium-based compounds.
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Affiliation(s)
| | - Fengxiang Liu
- *Correspondence: Fengxiang Liu, ; Kai Huang, ; Shengbing Yang,
| | - Kai Huang
- *Correspondence: Fengxiang Liu, ; Kai Huang, ; Shengbing Yang,
| | - Shengbing Yang
- *Correspondence: Fengxiang Liu, ; Kai Huang, ; Shengbing Yang,
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Antibacterial Effects of Modified Implant Abutment Surfaces for the Prevention of Peri-Implantitis-A Systematic Review. Antibiotics (Basel) 2021; 10:antibiotics10111350. [PMID: 34827288 PMCID: PMC8615005 DOI: 10.3390/antibiotics10111350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/28/2021] [Accepted: 10/31/2021] [Indexed: 12/27/2022] Open
Abstract
The aim of the present study was to systematically review studies investigating antibacterial implant abutment surfaces or coatings, which may suppress bacterial growth to prevent plaque-induced peri-implant inflammatory disease. Data were collected after identification of case, assay/laboratory procedure, predicate/reference standard and outcome (CAPO). Seven hundred and twenty (720) records were identified through data base searching. After screening nine publications fulfilled inclusion criteria and were included. The following surfaces/coatings showed antibacterial properties: Electrochemical surface modification of titanium by the anodic spark deposition technique; doxycycline coating by cathodic polarization; silver coating by DC plasma sputter; titanium nitride; zirconium nitride and microwave assistant nano silver coating. Since the current state of the literature is rather descriptive, a meta-analysis was not performed. While several abutment coatings showed to have antibacterial capacity, some of them also influenced the behavior of investigated human cells. None of the studies investigated the long-term effect of surface modifications. Since surface changes are the main contributing factor in the development of antibacterial effects, the biodegradation behavior must be characterized to understand its durability. To date there is no effective structure, material or strategy to avoid peri-implant inflammation used as clinical routine. Furthermore, clinical studies are scarce.
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