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Hassan N, Krieg T, Kopp A, Bach AD, Kröger N. Challenges and Pitfalls of Research Designs Involving Magnesium-Based Biomaterials: An Overview. Int J Mol Sci 2024; 25:6242. [PMID: 38892430 PMCID: PMC11172609 DOI: 10.3390/ijms25116242] [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: 04/17/2024] [Revised: 05/31/2024] [Accepted: 06/01/2024] [Indexed: 06/21/2024] Open
Abstract
Magnesium-based biomaterials hold remarkable promise for various clinical applications, offering advantages such as reduced stress-shielding and enhanced bone strengthening and vascular remodeling compared to traditional materials. However, ensuring the quality of preclinical research is crucial for the development of these implants. To achieve implant success, an understanding of the cellular responses post-implantation, proper model selection, and good study design are crucial. There are several challenges to reaching a safe and effective translation of laboratory findings into clinical practice. The utilization of Mg-based biomedical devices eliminates the need for biomaterial removal surgery post-healing and mitigates adverse effects associated with permanent biomaterial implantation. However, the high corrosion rate of Mg-based implants poses challenges such as unexpected degradation, structural failure, hydrogen evolution, alkalization, and cytotoxicity. The biocompatibility and degradability of materials based on magnesium have been studied by many researchers in vitro; however, evaluations addressing the impact of the material in vivo still need to be improved. Several animal models, including rats, rabbits, dogs, and pigs, have been explored to assess the potential of magnesium-based materials. Moreover, strategies such as alloying and coating have been identified to enhance the degradation rate of magnesium-based materials in vivo to transform these challenges into opportunities. This review aims to explore the utilization of Mg implants across various biomedical applications within cellular (in vitro) and animal (in vivo) models.
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Affiliation(s)
- Nourhan Hassan
- Department of Plastic, Reconstructive and Aesthetic Surgery, University Hospital Cologne, 50937 Cologne, Germany
- Institute for Laboratory Animal Science and Experimental Surgery, University of Aachen Medical Center, Faculty of Medicine, RWTH-Aachen University, 52074 Aachen, Germany
- Biotechnology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Thomas Krieg
- Translational Matrix Biology, Medical Faculty, University of Cologne, 50937 Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50937 Cologne, Germany
- Center for Molecular Medicine (CMMC), University of Cologne, 50937 Cologne, Germany
| | | | - Alexander D. Bach
- Department of Plastic, Aesthetic and Hand Surgery, St. Antonius Hospital Eschweiler, 52249 Eschweiler, Germany
| | - Nadja Kröger
- Institute for Laboratory Animal Science and Experimental Surgery, University of Aachen Medical Center, Faculty of Medicine, RWTH-Aachen University, 52074 Aachen, Germany
- Department of Plastic, Aesthetic and Hand Surgery, St. Antonius Hospital Eschweiler, 52249 Eschweiler, Germany
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2
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Fan L, Chen S, Yang M, Liu Y, Liu J. Metallic Materials for Bone Repair. Adv Healthc Mater 2024; 13:e2302132. [PMID: 37883735 DOI: 10.1002/adhm.202302132] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/16/2023] [Indexed: 10/28/2023]
Abstract
Repair of large bone defects caused by trauma or disease poses significant clinical challenges. Extensive research has focused on metallic materials for bone repair because of their favorable mechanical properties, biocompatibility, and manufacturing processes. Traditional metallic materials, such as stainless steel and titanium alloys, are widely used in clinics. Biodegradable metallic materials, such as iron, magnesium, and zinc alloys, are promising candidates for bone repair because of their ability to degrade over time. Emerging metallic materials, such as porous tantalum and bismuth alloys, have gained attention as bone implants owing to their bone affinity and multifunctionality. However, these metallic materials encounter many practical difficulties that require urgent improvement. This article systematically reviews and analyzes the metallic materials used for bone repair, providing a comprehensive overview of their morphology, mechanical properties, biocompatibility, and in vivo implantation. Furthermore, the strategies and efforts made to address the short-comings of metallic materials are summarized. Finally, the perspectives for the development of metallic materials to guide future research and advancements in clinical practice are identified.
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Affiliation(s)
- Linlin Fan
- Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China
| | - Sen Chen
- Institute for Frontier Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Minghui Yang
- Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China
| | - Yajun Liu
- Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China
- Department of Spine Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China
| | - Jing Liu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
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3
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Hassan HW, Mota-Silva E, Grasso V, Riehakainen L, Jose J, Menichetti L, Mirtaheri P. Near-Infrared Spectroscopy for the In Vivo Monitoring of Biodegradable Implants in Rats. SENSORS (BASEL, SWITZERLAND) 2023; 23:2297. [PMID: 36850894 PMCID: PMC9964707 DOI: 10.3390/s23042297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/08/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Magnesium (Mg) alloys possess unique properties that make them ideal for use as biodegradable implants in clinical applications. However, reports on the in vivo assessment of these alloys are insufficient. Thus, monitoring the degradation of Mg and its alloys in vivo is challenging due to the dynamic process of implant degradation and tissue regeneration. Most current works focus on structural remodeling, but functional assessment is crucial in providing information about physiological changes in tissues, which can be used as an early indicator of healing. Here, we report continuous wave near-infrared spectroscopy (CW NIRS), a non-invasive technique that is potentially helpful in assessing the implant-tissue dynamic interface in a rodent model. The purpose of this study was to investigate the effects on hemoglobin changes and tissue oxygen saturation (StO2) after the implantation of Mg-alloy (WE43) and titanium (Ti) implants in rats' femurs using a multiwavelength optical probe. Additionally, the effect of changes in the skin on these parameters was evaluated. Lastly, combining NIRS with photoacoustic (PA) imaging provides a more reliable assessment of tissue parameters, which is further correlated with principal component analysis.
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Affiliation(s)
- Hafiz Wajahat Hassan
- Faculty of Technology, Art and Design, Department of Mechanical, Electronic and Chemical Engineering, Oslo Metropolitan University, 0130 Oslo, Norway
| | - Eduarda Mota-Silva
- Institute of Clinical Physiology, National Research Council (IFC-CNR), 56124 Pisa, Italy
- Institute of Life Sciences, Sant’Anna School of Advanced Studies, 56127 Pisa, Italy
| | - Valeria Grasso
- FUJIFILM VisualSonics, 1114 AB Amsterdam, The Netherlands
- Faculty of Engineering, Institute for Materials Science, Christian-Albrecht University of Kiel, D-24143 Kiel, Germany
| | - Leon Riehakainen
- Institute of Clinical Physiology, National Research Council (IFC-CNR), 56124 Pisa, Italy
- Institute of Life Sciences, Sant’Anna School of Advanced Studies, 56127 Pisa, Italy
| | - Jithin Jose
- FUJIFILM VisualSonics, 1114 AB Amsterdam, The Netherlands
| | - Luca Menichetti
- Institute of Clinical Physiology, National Research Council (IFC-CNR), 56124 Pisa, Italy
| | - Peyman Mirtaheri
- Faculty of Technology, Art and Design, Department of Mechanical, Electronic and Chemical Engineering, Oslo Metropolitan University, 0130 Oslo, Norway
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4
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Popa M, Anastasescu M, Stefan LM, Prelipcean AM, Calderon Moreno J. Antibacterial Activity and Cell Viability of Biomimetic Magnesian Calcite Coatings on Biodegradable Mg. J Funct Biomater 2023; 14:jfb14020098. [PMID: 36826897 PMCID: PMC9963250 DOI: 10.3390/jfb14020098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023] Open
Abstract
Mg is a material of choice for biodegradable implants. The main challenge for using Mg in temporary implants is to provide protective surfaces that mitigate its rapid degradation in biological fluids and also confer sufficient cytocompatibility and bacterial resistance to Mg-coated surfaces. Even though carbonate mineralization is the most important source of biominerals, such as the skeletons and shells of many marine organisms, there has been little success in the controlled growth of carbonate layers by synthetic processes. We present here the formation mechanism, antibacterial activity, and cell viability of magnesian calcite biomimetic coatings grown on biodegradable Mg via a green, one-step route. Cell compatibility assessment showed cell viability higher than 80% after 72 h using fibroblast cells (NCTC, clone L929) and higher than 60% after 72 h using human osteoblast-like cells (SaOS-2); the cells displayed a normal appearance and a density similar to the control sample. Antimicrobial potential evaluation against both Gram-positive (Staphylococcus aureus (ATCC 25923)) and Gram-negative (Pseudomonas aeruginosa (ATCC 27853)) strains demonstrated that the coated samples significantly inhibited bacterial adhesion and biofilm formation compared to the untreated control. Calcite coatings grown on biodegradable Mg by a single coating process showed the necessary properties of cell compatibility and bacterial resistance for application in surface-modified Mg biomaterials for temporary implants.
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Affiliation(s)
- Monica Popa
- Oxide Compounds and Materials Science Laboratory, “Ilie Murgulescu” Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Mihai Anastasescu
- Surface Chemistry and Catalysis Laboratory, “Ilie Murgulescu” Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Laura M. Stefan
- Department of Cellular and Molecular Biology, National Institute of R&D for Biological Sciences, 296 Splaiul Independentei, 060031 Bucharest, Romania
| | - Ana-Maria Prelipcean
- Department of Cellular and Molecular Biology, National Institute of R&D for Biological Sciences, 296 Splaiul Independentei, 060031 Bucharest, Romania
| | - Jose Calderon Moreno
- Surface Chemistry and Catalysis Laboratory, “Ilie Murgulescu” Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania
- Correspondence:
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Vujović S, Desnica J, Stanišić D, Ognjanović I, Stevanovic M, Rosic G. Applications of Biodegradable Magnesium-Based Materials in Reconstructive Oral and Maxillofacial Surgery: A Review. Molecules 2022; 27:molecules27175529. [PMID: 36080296 PMCID: PMC9457564 DOI: 10.3390/molecules27175529] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/19/2022] [Accepted: 08/25/2022] [Indexed: 11/17/2022] Open
Abstract
Reconstruction of defects in the maxillofacial region following traumatic injuries, craniofacial deformities, defects from tumor removal, or infections in the maxillofacial area represents a major challenge for surgeons. Various materials have been studied for the reconstruction of defects in the maxillofacial area. Biodegradable metals have been widely researched due to their excellent biological properties. Magnesium (Mg) and Mg-based materials have been extensively studied for tissue regeneration procedures due to biodegradability, mechanical characteristics, osteogenic capacity, biocompatibility, and antibacterial properties. The aim of this review was to analyze and discuss the applications of Mg and Mg-based materials in reconstructive oral and maxillofacial surgery in the fields of guided bone regeneration, dental implantology, fixation of facial bone fractures and soft tissue regeneration.
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Affiliation(s)
- Sanja Vujović
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Jana Desnica
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Dragana Stanišić
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Irena Ognjanović
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Momir Stevanovic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
- Correspondence: (M.S.); (G.R.); Tel.: +381-641-327752 (M.S.); +381-633-92812 (G.R.)
| | - Gvozden Rosic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
- Correspondence: (M.S.); (G.R.); Tel.: +381-641-327752 (M.S.); +381-633-92812 (G.R.)
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6
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Evaluation of Microstructure and Mechanical Properties of a Ti10Mo8Nb Alloy for Biomedical Applications. METALS 2022. [DOI: 10.3390/met12071065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The growth of the elderly population is urging for more suitable biomaterials to allow the performance of better surgical and implant procedures and accelerate the patient’s healing because the elderly are more vulnerable to orthopedic and dental problems. β-phase Ti alloys can improve the mechanical properties of implants by reducing their elastic modulus and, consequently, the effects of stress shielding within bones. Therefore, the objective of this article is to study a novel ternary β-phase alloy of Ti10Mo8Nb produced by an electric arc furnace and rotary forge. The microstructure and mechanical properties of the Ti10Mo8Nb alloy were investigated in order to evaluate its suitability for biomedical applications and compare its characteristics with those present in Ti-alloys commerced or widely researched for prosthetic purposes. A tensile test, Vickers microhardness test, use of microstructure of optical microscopy for examination of microstructure, X-ray diffraction and hemolysis analysis were carried out. Thus, the Ti10Mo8Nb alloy showed suitable properties for biomedical applications, as well as having the potential to reduce the possibility to occur stress shielding after prosthetic implantations, especially for orthopedics and dentistry.
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7
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Song MS, Li RW, Qiu Y, Man SM, Tuipulotu DE, Birbilis N, Smith PN, Cole I, Kaplan DL, Chen XB. Gallium-Strontium Phosphate Conversion Coatings for Promoting Infection Prevention and Biocompatibility of Magnesium for Orthopedic Applications. ACS Biomater Sci Eng 2022; 8:2709-2723. [PMID: 35574832 DOI: 10.1021/acsbiomaterials.2c00099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Device-associated infections remain a clinical challenge. The common strategies to prevent bacterial infection are either toxic to healthy mammalian cells and tissue or involve high doses of antibiotics that can prompt long-term negative consequences. An antibiotic-free coating strategy to suppress bacterial growth is presented herein, which concurrently promotes bone cell growth and moderates the dissolution kinetics of resorbable magnesium (Mg) biomaterials. Pure Mg as a model biodegradable material was coated with gallium-doped strontium-phosphate through a chemical conversion process. Gallium was distributed in a gradual manner throughout the strontium-phosphate coating, with a compact structure and a gallium-rich surface. It was demonstrated that the coating protected the underlying Mg parts from significant degradation in minimal essential media at physiological conditions over 9 days. In terms of bacteria culture, the liberated gallium ions from the coatings upon Mg specimens, even though in minute quantities, inhibited the growth of Gram-positiveStaphylococcus aureus, Gram-negative Escherichia coli, andPseudomonas aeruginosa ─ key pathogens causing infection and early failure of the surgical implantations in orthopedics and trauma. More importantly, the gallium dopants displayed minimal interferences with the strontium-phosphate-based coating which boosted osteoblasts and undermined osteoclasts in in vitro co-cultures. This work provides a new strategy to prevent bacterial infection and control the degradation behavior of Mg-based orthopedic implants, while preserving osteogenic features of the devices.
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Affiliation(s)
- Ming-Shi Song
- School of Engineering, RMIT University, Carlton, Victoria 3053, Australia
| | - Rachel W Li
- Trauma and Orthopaedic Research Laboratory, Department of Surgery, The Medical School, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
| | - Yao Qiu
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Si Ming Man
- Department of Immunology and Infectious Disease, College of Health & Medicine, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
| | - Daniel E Tuipulotu
- Department of Immunology and Infectious Disease, College of Health & Medicine, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
| | - Nick Birbilis
- School of Engineering, College of Engineering and Computer Science, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
| | - Paul N Smith
- Department of Surgery, The Canberra Hospital, Garran, Australian Capital Territory 2605, Australia
| | - Ivan Cole
- School of Engineering, RMIT University, Carlton, Victoria 3053, Australia
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Xiao-Bo Chen
- School of Engineering, RMIT University, Carlton, Victoria 3053, Australia
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8
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Amukarimi S, Mozafari M. Biodegradable Magnesium Biomaterials—Road to the Clinic. Bioengineering (Basel) 2022; 9:bioengineering9030107. [PMID: 35324796 PMCID: PMC8945684 DOI: 10.3390/bioengineering9030107] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 02/24/2022] [Indexed: 01/09/2023] Open
Abstract
In recent decades, we have witnessed radical changes in the use of permanent biomaterials. The intrinsic ability of magnesium (Mg) and its alloys to degrade without releasing toxic degradation products has led to a vast range of applications in the biomedical field, including cardiovascular stents, musculoskeletal, and orthopedic applications. With the use of biodegradable Mg biomaterials, patients would not suffer second surgery and surgical pain anymore. Be that as it may, the main drawbacks of these biomaterials are the high corrosion rate and unexpected degradation in physiological environments. Since biodegradable Mg-based implants are expected to show controllable degradation and match the requirements of specific applications, various techniques, such as designing a magnesium alloy and modifying the surface characteristics, are employed to tailor the degradation rate. In this paper, some fundamentals and particular aspects of magnesium degradation in physiological environments are summarized, and approaches to control the degradation behavior of Mg-based biomaterials are presented.
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9
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Hegedus T, Kreuter P, Kismarczi-Antalffy AA, Demeter T, Banyai D, Vegh A, Geczi Z, Hermann P, Payer M, Zsembery A, Al-Hassiny A, Mukaddam K, Herber V, Jakse N, Vegh D. User Experience and Sustainability of 3D Printing in Dentistry. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19041921. [PMID: 35206116 PMCID: PMC8872260 DOI: 10.3390/ijerph19041921] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/30/2022] [Accepted: 02/03/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND 3D printing is a rapidly developing technology in the healthcare industry and in dentistry. Its application clearly shows that this area of digital dentistry has potential for everyday usage across all fields, including prosthodontics, orthodontics, maxillofacial surgery, and oral implantology. However, despite gaining ground, there is a lack of information about how specialists (dentists and dental technicians) use additive technology. Our research group aimed to investigate the impact of social media on additive manufacturing technology among dental specialists and their everyday usage of 3D printing. METHODS This paper investigated specialists' everyday usage of 3D printers via an online survey (Google Forms). The survey questions aimed to discover the number of 3D printers used, the accessibility of the devices, the annual cost, and the design programs. Since specialists tend to build online communities on social media, we circulated our study questionnaire using our profiles on LinkedIn, Facebook, and Instagram platforms during our research. RESULTS A total of 120 responses were received from 20 countries, with the most significant numbers being from Hungary 23.7% (n = 27), the United States 18.4% (n = 21), and the United Kingdom 7.9% (n = 9). Most of the participants were dentists (n = 68) or dental technicians (n = 29), but some CAD/CAM specialists (n = 23) also completed our survey. The participants had an average of 3.8 years (±0.7) of experience in the 3D printing field, and owned a total of 405 printing devices (3.6 on average/person). CONCLUSIONS The impact of social media on this research field is growing increasingly. Hence, we support specialists in joining virtual communities on professional platforms. This article intended to provide a practical overview, feedback, and direction for dentists interested in 3D printing technology. From our survey, we can conclude that additive technology is broadening dental applications and the services that we can provide for our patients.
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Affiliation(s)
- Tamas Hegedus
- Department of Prosthodontics, Semmelweis University, Szentkiralyi utca 47., 1088 Budapest, Hungary; (T.H.); (Z.G.); (P.H.)
| | - Patrik Kreuter
- Faculty of Dentistry, Semmelweis University, Szentkiralyi utca 47., 1088 Budapest, Hungary; (P.K.); (A.A.K.-A.)
| | | | - Tamas Demeter
- Department of General Dental Preclinical Practice, Semmelweis University, Szentkiralyi utca 47., 1088 Budapest, Hungary;
| | - Dorottya Banyai
- Department of Pediatric Dentistry and Orthodontics, Semmelweis University, Szentkiralyi utca 47., 1088 Budapest, Hungary;
| | - Adam Vegh
- Department of Maxillofacial Surgery and Dentistry, Semmelweis University, Maria utca 52., 1088 Budapest, Hungary;
| | - Zoltan Geczi
- Department of Prosthodontics, Semmelweis University, Szentkiralyi utca 47., 1088 Budapest, Hungary; (T.H.); (Z.G.); (P.H.)
| | - Peter Hermann
- Department of Prosthodontics, Semmelweis University, Szentkiralyi utca 47., 1088 Budapest, Hungary; (T.H.); (Z.G.); (P.H.)
| | - Michael Payer
- Division of Oral Surgery and Orthodontics, Department of Dental Medicine and Oral Health, School of Dentistry, Medical University Graz, Billrothgasse 4, 8010 Graz, Austria; (M.P.); (V.H.); (N.J.)
| | - Akos Zsembery
- Department of Oral Biology, Semmelweis University, Nagyvárad tér 4., 1089 Budapest, Hungary;
| | - Ahmad Al-Hassiny
- Institute of Digital Dentistry, 9 Hillary Court, Lower Hutt, Wellington 5010, New Zealand;
| | - Khaled Mukaddam
- Department of Oral Surgery, University Center for Dental Medicine Basel (UZB), University of Basel, Mattenstrasse 40, 4058 Basel, Switzerland;
| | - Valentin Herber
- Division of Oral Surgery and Orthodontics, Department of Dental Medicine and Oral Health, School of Dentistry, Medical University Graz, Billrothgasse 4, 8010 Graz, Austria; (M.P.); (V.H.); (N.J.)
| | - Norbert Jakse
- Division of Oral Surgery and Orthodontics, Department of Dental Medicine and Oral Health, School of Dentistry, Medical University Graz, Billrothgasse 4, 8010 Graz, Austria; (M.P.); (V.H.); (N.J.)
| | - Daniel Vegh
- Department of Prosthodontics, Semmelweis University, Szentkiralyi utca 47., 1088 Budapest, Hungary; (T.H.); (Z.G.); (P.H.)
- Division of Oral Surgery and Orthodontics, Department of Dental Medicine and Oral Health, School of Dentistry, Medical University Graz, Billrothgasse 4, 8010 Graz, Austria; (M.P.); (V.H.); (N.J.)
- Correspondence: ; Tel.: +36-30-7405164
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10
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Monitoring Dynamic Recrystallisation in Bioresorbable Alloy Mg-1Zn-0.2Ca by Means of an In Situ Acoustic Emission Technique. MATERIALS 2022; 15:ma15010328. [PMID: 35009474 PMCID: PMC8746214 DOI: 10.3390/ma15010328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 12/28/2021] [Accepted: 12/30/2021] [Indexed: 01/13/2023]
Abstract
The tensile behaviour of the biocompatible alloy Mg-1Zn-0.2Ca (in wt.%) in the fine-grained state, obtained by severe plastic deformation via multiaxial isothermal forging, has been investigated in a wide range of temperatures (20 ÷ 300) °C and strain rates (5 × 10−4 ÷ 2 × 10−2) s−1 with the measurements of acoustic emission (AE). The dependences of mechanical properties, including the yield stress, ultimate strength, ductility, and the strain-hardening rate, on the test temperature and strain rate, were obtained and discussed. It is shown for the first time that an acoustic emission method is an effective tool for in situ monitoring of the dynamic recrystallisation (DRX) process. The specific behaviour of the acoustic emission spectral density reflected by its median frequency as a function of strain at various temperatures can serve as an indicator of the DRX process’s completeness.
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11
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Wei X, Tang Z, Wu H, Zuo X, Dong H, Tan L, Wang W, Liu Y, Wu Z, Shi L, Wang N, Li X, Xiao X, Guo Z. Biofunctional magnesium-coated Ti6Al4V scaffolds promote autophagy-dependent apoptosis in osteosarcoma by activating the AMPK/mTOR/ULK1 signaling pathway. Mater Today Bio 2021; 12:100147. [PMID: 34704011 PMCID: PMC8523865 DOI: 10.1016/j.mtbio.2021.100147] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 11/24/2022] Open
Abstract
The recurrence of osteosarcoma (OS) after reconstruction using Ti6Al4V prostheses remains a major problem in the surgical treatment of OS. Modification of the surfaces of Ti6Al4V prostheses with antitumor functions is an important strategy for improving therapeutic outcomes. Magnesium (Mg) coating has been shown to be multifunctional: it exhibits osteogenic and angiogenic properties and the potential to inhibit OS. In this study, we determined the proper concentration of released Mg2+ with respect to OS inhibition and biosafety and evaluated the anti-OS effects of Mg-coated Ti6Al4V scaffolds. We found that the release of Mg2+ during short-term and long-term degradation could significantly inhibit the proliferation and migration of HOS and 143B cells. Increased cell apoptosis and excessive autophagy were also observed, and further evidence of AMPK/mTOR/ULK1 signaling pathway activation was obtained both in vitro and in vivo, which suggested that the biofunctional scaffolds induce OS inhibition. Our study demonstrates the ability of an Mg coating to inhibit OS and may contribute to the further application of Mg-coated Ti6Al4V prostheses. Multifunctional Mg coating is considerable surface modification for Ti6Al4V prostheses. Mg2+ releasing by the scaffolds could significantly inhibit the proliferation and migration of OS cells. The biofunctional scaffolds could inhibit OS by activating autophagy-dependent apoptosis. The AMPK/mTOR/ULK-1 pathway was involved in autophagy-depended apoptosis induced by the scaffolds.
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Affiliation(s)
- X Wei
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Z Tang
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - H Wu
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - X Zuo
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - H Dong
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - L Tan
- Institute of Metal Research, Chinese Academy of Science, Shenyang, 110016, PR China
| | - W Wang
- Department of Immunology, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Y Liu
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Z Wu
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - L Shi
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - N Wang
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - X Li
- Department of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710038, PR China
| | - X Xiao
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Z Guo
- Department of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710038, PR China
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The Influence of Hydroxyapatite and Alumina Particles on the Mechanical Properties and Corrosion Behavior of Mg-Zn Hybrid Composites for Implants. MATERIALS 2021; 14:ma14216246. [PMID: 34771772 PMCID: PMC8584422 DOI: 10.3390/ma14216246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/10/2021] [Accepted: 09/23/2021] [Indexed: 11/22/2022]
Abstract
Considering the necessity for a biodegradable implant alloy with good biocompatibility and mechanical strength, dual ceramic particles of HAP and Al2O3 were added to Mg-Zn alloy to produce a new hybrid composite using powder metallurgy. The paper reports the mechanical and corrosion behaviour of Mg-Zn/HAP/Al2O3 hybrid composites containing variable wt.% HAP and Al2O3 with 15 wt.% total ceramic content. The powders of Mg, Zn, Al2O3 and HAP were milled in a high-energy ball mill, and then compacted under 400 MPa and sintered at 300 °C. Density and compression strength increased with increasing Al2O3 content. HAP facilitated weight gain in Hanks balanced salt solution due to deposition of an apatite layer which promoted anodic behaviour with higher corrosion resistance. A hybrid composite of Mg alloy with 5 wt.% Al2O3 and 10 wt.% HAP displayed 153 MPa compressive strength, 1.37 mm/year corrosion resistance and bioactivity with a CA:P ratio of 1:1.55 and appears to be the most promising biodegradable implant material tested.
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Abstract
Magnesium is a promising material. It has a remarkable mix of mechanical and biomedical properties that has made it suitable for a vast range of applications. Moreover, with alloying, many of these inherent properties can be further improved. Today, it is primarily used in the automotive, aerospace, and medical industries. However, magnesium has its own set of drawbacks that the industry and research communities are actively addressing. Magnesium’s rapid corrosion is its most significant drawback, and it dramatically impeded magnesium’s growth and expansion into other applications. This article reviews both the engineering and biomedical aspects and applications for magnesium and its alloys. It will also elaborate on the challenges that the material faces and how they can be overcome and discuss its outlook.
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