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Crăciunescu I, Ispas GM, Ciorîța A, Leoștean C, Illés E, Turcu RP. Novel Magnetic Composite Materials for Dental Structure Restoration Application. Nanomaterials (Basel) 2023; 13:1215. [PMID: 37049307 PMCID: PMC10097343 DOI: 10.3390/nano13071215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
In general, magnetic nanoparticles are not often used in dental applications due to some limitations of these materials, such as aggregation problems and low mechanical and chemical resistance but also esthetic problems due to their black color. Our research presents the synthesis of novel magnetic dental composite materials based on magnetic nanoparticles, functionalized and properly coated to overcome the limitations of using magnetic nanoparticles in dental applications. The composites were prepared using a preparation flow containing several integrated reaction steps used previously sequentially. An adequate and deep characterization of dental magnetic composites has been carried out in order to demonstrate that each limitation has been successfully overcome. It was proved that each component brings particular benefits in dental interventions: Fe3O4 nanoparticles have biocompatible, non-toxic properties and also antimicrobial effects; the SiO2 layer significantly increases the mechanical strength of the material; and the Ca(OH)2 layer initiates local calcification and significantly improves the color of the dental composite material. Due to magnetic properties, an innovative application approach on the tooth surface can be achieved under an external magnetic field, which, compared to conventional methods, has a major impact on reducing the occurrence of dental caries under filling materials as well as on reducing microfractures.
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Affiliation(s)
- Izabell Crăciunescu
- National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania; (G.M.I.); (A.C.); (R.P.T.)
| | - George Marian Ispas
- National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania; (G.M.I.); (A.C.); (R.P.T.)
| | - Alexandra Ciorîța
- National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania; (G.M.I.); (A.C.); (R.P.T.)
- Faculty of Biology and Geology, Babes-Bolyai University, 400084 Cluj-Napoca, Romania
| | - Cristian Leoștean
- National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania; (G.M.I.); (A.C.); (R.P.T.)
| | - Erzsébet Illés
- Department of Food Engineering, University of Szeged, 6724 Szeged, Hungary;
| | - Rodica Paula Turcu
- National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania; (G.M.I.); (A.C.); (R.P.T.)
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2
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Luo C, Liu Y, Peng B, Chen M, Liu Z, Li Z, Kuang H, Gong B, Li Z, Sun H. PEEK for Oral Applications: Recent Advances in Mechanical and Adhesive Properties. Polymers (Basel) 2023; 15. [PMID: 36679266 DOI: 10.3390/polym15020386] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/06/2023] [Accepted: 01/07/2023] [Indexed: 01/15/2023] Open
Abstract
Polyetheretherketone (PEEK) is a thermoplastic material widely used in engineering applications due to its good biomechanical properties and high temperature stability. Compared to traditional metal and ceramic dental materials, PEEK dental implants exhibit less stress shielding, thus better matching the mechanical properties of bone. As a promising medical material, PEEK can be used as implant abutments, removable and fixed prostheses, and maxillofacial prostheses. It can be blended with materials such as fibers and ceramics to improve its mechanical strength for better clinical dental applications. Compared to conventional pressed and CAD/CAM milling fabrication, 3D-printed PEEK exhibits excellent flexural and tensile strength and parameters such as printing temperature and speed can affect its mechanical properties. However, the bioinert nature of PEEK can make adhesive bonding difficult. The bond strength can be improved by roughening or introducing functional groups on the PEEK surface by sandblasting, acid etching, plasma treatment, laser treatment, and adhesive systems. This paper provides a comprehensive overview of the research progress on the mechanical properties of PEEK for dental applications in the context of specific applications, composites, and their preparation processes. In addition, the research on the adhesive properties of PEEK over the past few years is highlighted. Thus, this review aims to build a conceptual and practical toolkit for the study of the mechanical and adhesive properties of PEEK materials. More importantly, it provides a rationale and a general new basis for the application of PEEK in the dental field.
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3
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Wang Q, Wellinghoff ST, Rawls HR. Investigation of Thermal-Induced Changes in Molecular Order on Photopolymerization and Performance Properties of a Nematic Liquid-Crystal Diacrylate. Materials (Basel) 2022; 15:4605. [PMID: 35806735 PMCID: PMC9267439 DOI: 10.3390/ma15134605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/25/2022] [Accepted: 06/28/2022] [Indexed: 02/05/2023]
Abstract
Polymerization shrinkage and associated stresses are the main reasons for dental restorative failure. We developed a series of liquid crystal diacrylates and dimethacrylates which have markedly low polymerization shrinkage. In order to fully understand the effects of temperature-induced changes of molecular order on the photopolymerization process and performance properties of the generated polymers, the photopolymerization of a difunctional acrylate, 2-t-butyl-1,4-phenylene bis (4-(6-(acryloyloxy)hexyloxy)benzoate), which exists in the nematic liquid crystalline phase at room temperature, was investigated as a function of photopolymerization temperature over the nematic to isotropic range. Morphological studies suggested that a mesogenic phase was immediately formed in the polymer even if polymerization in thin films occurred above the nematic-to-isotropic (N→I) transition temperature of the monomer (Tn-i = 45.8 °C). Dynamic mechanical analysis of 2 × 2 mm cross-section bar samples polymerized at 60 °C showed reduced elastic moduli, increased glass transition temperature and formation of a more crosslinked network, in comparison to polymers formed at lower polymerization temperatures. Fractography analysis showed that polymers generated from the nematic liquid crystalline phase underwent a different fracture pattern in comparison to those generated from the isotropic phase. Volumetric shrinkage (2.2%) found in polymer polymerized from the nematic liquid crystalline phase at room temperature was substantially less than the 6.0% observed in polymer polymerized from an initial isotropic phase at 60 °C, indicating that an organized monomer can greatly contribute to reducing cure shrinkage.
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Affiliation(s)
- Qian Wang
- Division of Research, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA;
- Core Facility Center for Life Sciences, University of Science and Technology of China, Hefei 230026, China
| | - Stephen T. Wellinghoff
- Chemistry and Chemical Engineering Division, Southwest Research Institute, San Antonio, TX 78238, USA;
| | - Henry Ralph Rawls
- Division of Research, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA;
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4
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Paczkowska-Walendowska M, Szymańska E, Winnicka K, Szwajgier D, Baranowska-Wójcik E, Ruchała MA, Simon M, Cielecka-Piontek J. Cyclodextrin as Functional Carrier in Development of Mucoadhesive Tablets Containing Polygoni cuspidati Extract with Potential for Dental Applications. Pharmaceutics 2021; 13:pharmaceutics13111916. [PMID: 34834331 PMCID: PMC8619530 DOI: 10.3390/pharmaceutics13111916] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/06/2021] [Accepted: 11/10/2021] [Indexed: 11/16/2022] Open
Abstract
Polygoni cuspidati root is a resveratrol-rich source with anti-inflammatory, angiogenic and neuroprotective effects. The raw material was standardized for the content of resveratrol, for which there is a special justification for administration within the oral mucosa. To improve the solubility of resveratrol and to assure its high content in plant material, an ultrasound-assisted extraction method was applied. The addition of cyclodextrin was found to increase the extraction efficiency of resveratrol (from 13 to 297 µg per 1 g of plant material in case of 50% ethanol extracts) and enhanced its antioxidant activity as compared to pure Polygoni cuspidati extract/resveratrol. Cyclodextrin plays the role of a functional extract regarding technological properties (increasing the extraction of resveratrol from the extract, improving mucoadhesive properties). Therefore, the aim of this study was to develop mucoadhesive tablets containing combinations of the Polygoni cuspidati extract with a cyclodextrin carrier for buccal delivery. The tests sequentially included extract preparation and characterization of its physical and biological properties and then formulation studies with a broad description of the prototype properties. The test results indicate that cyclodextrin increases the efficiency of resveratrol extraction from Polygoni cuspidati rhizome, which is a rich source of resveratrol, and its extract enclosed in a mucoadhesive tablet guarantees prolonged action at the site of administration.
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Affiliation(s)
| | - Emilia Szymańska
- Department of Pharmaceutical Technology, Medical University of Białystok, Mickiewicza 2c, 15-222 Białystok, Poland; (E.S.); (K.W.)
| | - Katarzyna Winnicka
- Department of Pharmaceutical Technology, Medical University of Białystok, Mickiewicza 2c, 15-222 Białystok, Poland; (E.S.); (K.W.)
| | - Dominik Szwajgier
- Department of Biotechnology, Microbiology and Human Nutrition, University of Life Sciences in Lublin, Skromna 8, 20-704 Lublin, Poland; (D.S.); (E.B.-W.)
| | - Ewa Baranowska-Wójcik
- Department of Biotechnology, Microbiology and Human Nutrition, University of Life Sciences in Lublin, Skromna 8, 20-704 Lublin, Poland; (D.S.); (E.B.-W.)
| | - Marek A. Ruchała
- Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, Bukowska 70, 60-812 Poznan, Poland;
| | - Marek Simon
- Department of Pathophysiology, Poznan University of Medical Sciences, Rokietnicka 8, 60-806 Poznan, Poland;
| | - Judyta Cielecka-Piontek
- Department of Pharmacognosy, Poznan University of Medical Sciences, Święcickiego 4, 60-781 Poznan, Poland;
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Edelmann A, Riedel L, Hellmann R. Realization of a Dental Framework by 3D Printing in Material Cobalt-Chromium with Superior Precision and Fitting Accuracy. Materials (Basel) 2020; 13:ma13235390. [PMID: 33260885 PMCID: PMC7730265 DOI: 10.3390/ma13235390] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/29/2020] [Accepted: 11/25/2020] [Indexed: 02/02/2023]
Abstract
We report on the generation of a cobalt-chromium dental framework with superior precision and fitting accuracy using selective laser melting. The objective of this study is the reduction of surface roughness and the possibility to manufacture a dental framework with high precision for passive fit with attachments, in particular a round tack. After selective laser melting, the dental framework is thermally post processed at 750 °C, shot-blasted with glass and highly polished. Nominal to actual 3D form deviation is analyzed by stripe light projection, revealing deviations being less than 250 μm, i.e., warpage is as low as to permit dental application and accurate passive fit. In particular, the critical area of the dental framework, the fixture to the implant (overdenture) shows negligible deviations. This superior fitting accuracy is confirmed by joining the bar with a testing stylus.
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Khaskhoussi A, Calabrese L, Currò M, Ientile R, Bouaziz J, Proverbio E. Effect of the Compositions on the Biocompatibility of New Alumina-Zirconia-Titania Dental Ceramic Composites. Materials (Basel) 2020; 13:ma13061374. [PMID: 32197510 PMCID: PMC7142750 DOI: 10.3390/ma13061374] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/04/2020] [Accepted: 03/16/2020] [Indexed: 11/16/2022]
Abstract
Dental implant biomaterials are expected to be in contact with living tissues, therefore their toxicity and osseointegration ability must be carefully assessed. In the current study, the wettability, cytotoxicity, and genotoxicity of different alumina-zirconia-titania composites were evaluated. The surface wettability determines the biological event cascade in the bioceramic/human living tissues interface. The measured water contact angle indicated that the wettability strongly depends on the ceramic composition. Notwithstanding the contact angle variability, the ceramic surfaces are hydrophilic. The cytotoxicity of human gingival fibroblast cells with materials, evaluated by an (3-(4,5 methylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) test, revealed an absence of any cytotoxic effect. A relationship was found between the cell viability and the wettability. It was subsequently deduced that the cell viability increases when the wettability increases. This effect is more pronounced when the titania content is higher. Finally, a comet test was applied as complementary biocompatibility test to detect any changes in fibroblast cell DNA. The results showed that the DNA damage is intimately related to the TiO2 content. Genotoxicity was mainly attributed to ceramic composites containing 10 wt.% TiO2. Our research revealed that the newly developed high performance alumina-zirconia-titania ceramic composites contain less than 10 wt.% TiO2, and display promising surface properties, making them suitable for dental implantology applications.
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Affiliation(s)
- Amani Khaskhoussi
- Department of Engineering, University of Messina, Contrada di Dio Sant’Agata, 98166 Messina, Italy;
- National Interuniversity Consortium of Materials Science and Technology, INSTM, Via Giuseppe Giusti 9, 50121 Firenze, Italy
- Correspondence: (A.K.); (L.C.)
| | - Luigi Calabrese
- Department of Engineering, University of Messina, Contrada di Dio Sant’Agata, 98166 Messina, Italy;
- Correspondence: (A.K.); (L.C.)
| | - Monica Currò
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Via Consolare Valeria, 98123 Messina, Italy; (M.C.); (R.I.)
| | - Riccardo Ientile
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Via Consolare Valeria, 98123 Messina, Italy; (M.C.); (R.I.)
| | - Jamel Bouaziz
- Laboratory of Industrial Chemistry, University of Sfax, National School of Engineering, Sfax 1173-3038, Tunisia;
| | - Edoardo Proverbio
- Department of Engineering, University of Messina, Contrada di Dio Sant’Agata, 98166 Messina, Italy;
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Kaushik NK, Ghimire B, Li Y, Adhikari M, Veerana M, Kaushik N, Jha N, Adhikari B, Lee SJ, Masur K, von Woedtke T, Weltmann KD, Choi EH. Biological and medical applications of plasma-activated media, water and solutions. Biol Chem 2019; 400:39-62. [PMID: 30044757 DOI: 10.1515/hsz-2018-0226] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/11/2018] [Indexed: 01/28/2023]
Abstract
Non-thermal atmospheric pressure plasma has been proposed as a new tool for various biological and medical applications. Plasma in close proximity to cell culture media or water creates reactive oxygen and nitrogen species containing solutions known as plasma-activated media (PAM) or plasma-activated water (PAW) - the latter even displays acidification. These plasma-treated solutions remain stable for several days with respect to the storage temperature. Recently, PAM and PAW have been widely studied for many biomedical applications. Here, we reviewed promising reports demonstrating plasma-liquid interaction chemistry and the application of PAM or PAW as an anti-cancer, anti-metastatic, antimicrobial, regenerative medicine for blood coagulation and even as a dental treatment agent. We also discuss the role of PAM on cancer initiation cells (spheroids or cancer stem cells), on the epithelial mesenchymal transition (EMT), and when used for metastasis inhibition considering its anticancer effects. The roles of PAW in controlling plant disease, seed decontamination, seed germination and plant growth are also considered in this review. Finally, we emphasize the future prospects of PAM, PAW or plasma-activated solutions in biomedical applications with a discussion of the mechanisms and the stability and safety issues in relation to humans.
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Affiliation(s)
- Nagendra Kumar Kaushik
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical and Biological Physics and Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Bhagirath Ghimire
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical and Biological Physics and Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Ying Li
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical and Biological Physics and Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Manish Adhikari
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical and Biological Physics and Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Mayura Veerana
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical and Biological Physics and Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Neha Kaushik
- Department of Life Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Nayansi Jha
- Graduate School of Clinical Dentistry, Korea University, Seoul 02841, Republic of Korea
| | - Bhawana Adhikari
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical and Biological Physics and Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Su-Jae Lee
- Department of Life Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Kai Masur
- Leibniz Institute for Plasma Science and Technology, D-17489 Greifswald, Germany
| | - Thomas von Woedtke
- Leibniz Institute for Plasma Science and Technology, D-17489 Greifswald, Germany
| | | | - Eun Ha Choi
- Plasma Bioscience Research Center, Applied Plasma Medicine Center, Department of Electrical and Biological Physics and Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Republic of Korea
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Sakagami H, Watanabe T, Hoshino T, Suda N, Mori K, Yasui T, Yamauchi N, Kashiwagi H, Gomi T, Oizumi T, Nagai J, Uesawa Y, Takao K, Sugita Y. Recent Progress of Basic Studies of Natural Products and Their Dental Application. Medicines (Basel) 2018; 6:medicines6010004. [PMID: 30585249 PMCID: PMC6473826 DOI: 10.3390/medicines6010004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/10/2018] [Accepted: 12/19/2018] [Indexed: 12/14/2022]
Abstract
The present article reviews the research progress of three major polyphenols (tannins, flavonoids and lignin carbohydrate complexes), chromone (backbone structure of flavonoids) and herbal extracts. Chemical modified chromone derivatives showed highly specific toxicity against human oral squamous cell carcinoma cell lines, with much lower toxicity against human oral keratinocytes, as compared with various anticancer drugs. QSAR analysis suggests the possible correlation between their tumor-specificity and three-dimensional molecular shape. Condensed tannins in the tea extracts inactivated the glucosyltransferase enzymes, involved in the biofilm formation. Lignin-carbohydrate complexes (prepared by alkaline extraction and acid-precipitation) and crude alkaline extract of the leaves of Sasa species (SE, available as an over-the-counter drug) showed much higher anti-HIV activity, than tannins, flavonoids and Japanese traditional medicine (Kampo). Long-term treatment with SE and several Kampo medicines showed an anti-inflammatory and anti-oxidant effects in small size of clinical trials. Although the anti-periodontitis activity of synthetic angiotensin II blockers has been suggested in many papers, natural angiotensin II blockers has not yet been tested for their possible anti-periodontitis activity. There should be still many unknown substances that are useful for treating the oral diseases in the natural kingdom.
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Affiliation(s)
- Hiroshi Sakagami
- Meikai University Research Institute of Odontology (M-RIO), 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan.
| | - Taihei Watanabe
- Division of Pediatric Dentistry, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan.
| | - Tomonori Hoshino
- Division of Pediatric Dentistry, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan.
| | - Naoto Suda
- Division of Orthodontics, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan.
| | - Kazumasa Mori
- Division of First Oral and Maxillofacial Surgery, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan.
| | - Toshikazu Yasui
- Division of Oral Health, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan.
| | - Naoki Yamauchi
- Masuko Memorial Hospital, 35-28 Takehashi-cho, Nakamura-ku, Nagoya 453-8566, Japan.
| | - Harutsugu Kashiwagi
- Ecopale Co., Ltd., 885 Minamiisshiki, Nagaizumi-cho, Suntou-gun, Shizuoka 411-0932, Japan.
| | - Tsuneaki Gomi
- Gomi clinic, 1-10-12 Hyakunin-cho, Shinjuku-ku, Tokyo 169-0073, Japan.
| | - Takaaki Oizumi
- Daiwa Biological Research Institute Co., Ltd., 3-2-1 Sakado, Takatsu-ku, Kawasaki, Kanagawa 213-0012, Japan.
| | - Junko Nagai
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan.
| | - Yoshihiro Uesawa
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan.
| | - Koichi Takao
- Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado, Saitama 350-0295, Japan.
| | - Yoshiaki Sugita
- Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado, Saitama 350-0295, Japan.
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Abstract
Nanoparticles are tiny materials with nanosized components less than 100 nm in at least one dimension with physicochemical properties, which make them very attractive for medical application. These compounds have been evaluated as potential medicines for several decades. Nanotechnology has provided advances in the various fields of health sciences such as diagnosis, prevention and treatment by application of the agents named nanomedicines, including proteins, polymers, micelles, dendrimers, liposomes, emulsions, nanocapsules and nanoparticles. These materials can act as a scaffold, gene/drug delivery, tumor suppressor, conjugated with surgical implant, etc. They can also use as a nanocomposite, artificial tooth and dental caries preventing agent in the dentistry science. This current review tries to summarize recent applications of nanomedicine in the medical and dental fields.
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Affiliation(s)
- Fraidoon Kavoosi
- Research Center for Non-communicable Diseases, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Farzan Modaresi
- Department of Microbiology, School of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran.,Department of Advanced Medical Sciences and Technology, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Masumeh Sanaei
- Research Center for Non-communicable Diseases, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Zahra Rezaei
- Student Research Committee, Jahrom University of Medical Sciences, Jahrom, Iran
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Liens A, Etiemble A, Rivory P, Balvay S, Pelletier JM, Cardinal S, Fabrègue D, Kato H, Steyer P, Munhoz T, Adrien J, Courtois N, Hartmann DJ, Chevalier J. On the Potential of Bulk Metallic Glasses for Dental Implantology: Case Study on Ti 40Zr 10Cu 36Pd 14. Materials (Basel) 2018; 11:E249. [PMID: 29415490 DOI: 10.3390/ma11020249] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 01/25/2018] [Accepted: 02/02/2018] [Indexed: 11/23/2022]
Abstract
Ti40Zr10Cu36Pd14 Bulk Metallic Glass (BMG) appears very attractive for future biomedical applications thanks to its high glass forming ability, the absence of toxic elements such as Ni, Al or Be and its good mechanical properties. For the first time, a complete and exhaustive characterization of a unique batch of this glassy alloy was performed, together with ISO standard mechanical tests on machined implant-abutment assemblies. The results were compared to the benchmark Ti-6Al-4V ELI (Extra-Low-Interstitial) to assess its potential in dental implantology. The thermal stability, corrosion and sterilization resistance, cytocompatibility and mechanical properties were measured on samples with a simple geometry, but also on implant-abutment assemblies’ prototypes. Results show that the glassy alloy exhibits a quite high thermal stability, with a temperature range of 38 °C between the glass transition and crystallization, a compressive strength of 2 GPa, a certain plastic deformation (0.7%), a hardness of 5.5 GPa and a toughness of 56 MPa.√m. Moreover, the alloy shows a relatively lower Young’s modulus (96 GPa) than the Ti-6Al-4V alloy (110–115 GPa), which is beneficial to limit bone stress shielding. The BMG shows a satisfactory cytocompatibility, a high resistance to sterilization and a good corrosion resistance (corrosion potential of −0.07 V/SCE and corrosion current density of 6.0 nA/cm2), which may ensure its use as a biomaterial. Tests on dental implants reveal a load to failure 1.5-times higher than that of Ti-6Al-4V and a comparable fatigue limit. Moreover, implants could be machined and sandblasted by methods usually conducted for titanium implants, without significant degradation of their amorphous nature. All these properties place this metallic glass among a promising class of materials for mechanically-challenging applications such as dental implants.
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11
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Halib N, Perrone F, Cemazar M, Dapas B, Farra R, Abrami M, Chiarappa G, Forte G, Zanconati F, Pozzato G, Murena L, Fiotti N, Lapasin R, Cansolino L, Grassi G, Grassi M. Potential Applications of Nanocellulose-Containing Materials in the Biomedical Field. Materials (Basel) 2017; 10:ma10080977. [PMID: 28825682 PMCID: PMC5578343 DOI: 10.3390/ma10080977] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/11/2017] [Accepted: 08/16/2017] [Indexed: 02/06/2023]
Abstract
Because of its high biocompatibility, bio-degradability, low-cost and easy availability, cellulose finds application in disparate areas of research. Here we focus our attention on the most recent and attractive potential applications of cellulose in the biomedical field. We first describe the chemical/structural composition of cellulose fibers, the cellulose sources/features and cellulose chemical modifications employed to improve its properties. We then move to the description of cellulose potential applications in biomedicine. In this field, cellulose is most considered in recent research in the form of nano-sized particle, i.e., nanofiber cellulose (NFC) or cellulose nanocrystal (CNC). NFC is obtained from cellulose via chemical and mechanical methods. CNC can be obtained from macroscopic or microscopic forms of cellulose following strong acid hydrolysis. NFC and CNC are used for several reasons including the mechanical properties, the extended surface area and the low toxicity. Here we present some potential applications of nano-sized cellulose in the fields of wound healing, bone-cartilage regeneration, dental application and different human diseases including cancer. To witness the close proximity of nano-sized cellulose to the practical biomedical use, examples of recent clinical trials are also reported. Altogether, the described examples strongly support the enormous application potential of nano-sized cellulose in the biomedical field.
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Affiliation(s)
- Nadia Halib
- Department of Basic Sciences & Oral Biology, Faculty of Dentistry, Universiti Sains Islam Malaysia, Level 15, Tower B, Persiaran MPAJ, Jalan Pandan Utama, Kuala Lumpur 55100, Malaysia;.
| | - Francesca Perrone
- Department of Life Sciences, Cattinara University Hospital, Trieste University, Strada di Fiume 447, I-34149 Trieste, Italy.
| | - Maja Cemazar
- Institute of Oncology Ljubljana, Zaloska 2, SI-1000 Ljubljana, Slovenia.
| | - Barbara Dapas
- Department of Life Sciences, Cattinara University Hospital, Trieste University, Strada di Fiume 447, I-34149 Trieste, Italy.
| | - Rossella Farra
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6/A, I-34127 Trieste, Italy.
| | - Michela Abrami
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6/A, I-34127 Trieste, Italy.
| | - Gianluca Chiarappa
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6/A, I-34127 Trieste, Italy.
| | - Giancarlo Forte
- Center for Translational Medicine, International Clinical Research Center, St. Anne's University Hospital, Pekarska 53, 656 91 Brno, Czech Republic.
| | - Fabrizio Zanconati
- Surgery and Health Sciences, Department of Medical, Cattinara Hospital, University of Trieste, I-34127 Trieste, Italy.
| | - Gabriele Pozzato
- Surgery and Health Sciences, Department of Medical, Cattinara Hospital, University of Trieste, I-34127 Trieste, Italy.
| | - Luigi Murena
- Surgery and Health Sciences, Department of Medical, Cattinara Hospital, University of Trieste, I-34127 Trieste, Italy.
| | - Nicola Fiotti
- Surgery and Health Sciences, Department of Medical, Cattinara Hospital, University of Trieste, I-34127 Trieste, Italy.
| | - Romano Lapasin
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6/A, I-34127 Trieste, Italy.
| | - Laura Cansolino
- Department of Clinico-Surgical Sciences, Experimental Surgery Laboratory, University of Pavia and IRCCS S, Matteo Hospital Pavia, 27100 Pavia, Italy.
| | - Gabriele Grassi
- Department of Life Sciences, Cattinara University Hospital, Trieste University, Strada di Fiume 447, I-34149 Trieste, Italy.
| | - Mario Grassi
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6/A, I-34127 Trieste, Italy.
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