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Ciobanu CS, Predoi D, Iconaru SL, Predoi MV, Rokosz K, Raaen S, Negrila CC, Buton N, Ghegoiu L, Badea ML. Physico-Chemical and Biological Features of Fluorine-Substituted Hydroxyapatite Suspensions. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3404. [PMID: 39063697 PMCID: PMC11277939 DOI: 10.3390/ma17143404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 06/28/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024]
Abstract
Infections related to orthopedic/stomatology surgery are widely recognized as a significant health concern. Therefore, the development of new materials with superior biological properties and good stability could represent a valuable alternative to the classical treatments. In this paper, the fluorine-substituted hydroxyapatite (FHAp) suspension, with the chemical formula Ca10(PO4)6(OH)2-2xF2x (where x = 0.05), was prepared using a modified coprecipitation technique. Stability studies were conducted by zeta potential and ultrasound measurements for the first time. The X-ray diffraction (XRD) patterns of FHAp powders displayed a hexagonal structure akin to that of pure hydroxyapatite (HAp). The XPS general spectrum revealed peaks corresponding to the constituent elements of fluorine-substituted hydroxyapatite such as calcium, phosphorus, oxygen, and fluorine. The purity of the obtained FHAp samples was confirmed by energy-dispersive X-ray spectroscopy (EDS) studies. The FHAp morphology was evaluated by scanning electron microscopy (SEM) measurements. Fourier-transform infrared spectroscopy (FTIR) studies were performed in order to study the vibrational properties of the FHAp samples. The FHAp suspensions were tested for antibacterial activity against reference strains such as Staphylococcus aureus 25923 ATCC, Escherichia coli ATCC 25922, and Candida albicans ATCC 10231. Additionally, the biocompatibility of the FHAp suspensions was assessed using human fetal osteoblastic cells (hFOB 1.19 cell line). The results of our biological tests suggest that FHAp suspensions are promising candidates for the future development of new biocompatible and antimicrobial agents for use in the biomedical field.
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Affiliation(s)
- Carmen Steluta Ciobanu
- National Institute of Materials Physics, Atomistilor Street, No. 405A, 077125 Magurele, Romania; (S.L.I.); (C.C.N.); (L.G.)
| | - Daniela Predoi
- National Institute of Materials Physics, Atomistilor Street, No. 405A, 077125 Magurele, Romania; (S.L.I.); (C.C.N.); (L.G.)
| | - Simona Liliana Iconaru
- National Institute of Materials Physics, Atomistilor Street, No. 405A, 077125 Magurele, Romania; (S.L.I.); (C.C.N.); (L.G.)
| | - Mihai Valentin Predoi
- Department of Mechanics, University Politehnica of Bucharest, BN 002, 313 Splaiul Independentei, Sector 6, 060042 Bucharest, Romania;
| | - Krzysztof Rokosz
- Faculty of Electronics and Computer Science, Koszalin University of Technology, Sniadeckich 2, PL 75-453 Koszalin, Poland;
| | - Steinar Raaen
- Department of Physics, Norwegian University of Science and Technology (NTNU), Realfagbygget E3-124 Høgskoleringen 5, NO 7491 Trondheim, Norway;
| | - Catalin Constantin Negrila
- National Institute of Materials Physics, Atomistilor Street, No. 405A, 077125 Magurele, Romania; (S.L.I.); (C.C.N.); (L.G.)
| | - Nicolas Buton
- HORIBA Jobin Yvon S.A.S., 6–18, Rue du Canal, 91165 Longjumeau CEDEX, France;
| | - Liliana Ghegoiu
- National Institute of Materials Physics, Atomistilor Street, No. 405A, 077125 Magurele, Romania; (S.L.I.); (C.C.N.); (L.G.)
| | - Monica Luminita Badea
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine, 59 Marasti Blvd., 011464 Bucharest, Romania;
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Zhang J, Bai H, Bai M, Wang X, Li Z, Xue H, Wang J, Cui Y, Wang H, Wang Y, Zhou R, Zhu X, Xu M, Zhao X, Liu H. Bisphosphonate-incorporated coatings for orthopedic implants functionalization. Mater Today Bio 2023; 22:100737. [PMID: 37576870 PMCID: PMC10413202 DOI: 10.1016/j.mtbio.2023.100737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/06/2023] [Accepted: 07/19/2023] [Indexed: 08/15/2023] Open
Abstract
Bisphosphonates (BPs), the stable analogs of pyrophosphate, are well-known inhibitors of osteoclastogenesis to prevent osteoporotic bone loss and improve implant osseointegration in patients suffering from osteoporosis. Compared to systemic administration, BPs-incorporated coatings enable the direct delivery of BPs to the local area, which will precisely enhance osseointegration and bone repair without the systemic side effects. However, an elaborate and comprehensive review of BP coatings of implants is lacking. Herein, the cellular level (e.g., osteoclasts, osteocytes, osteoblasts, osteoclast precursors, and bone mesenchymal stem cells) and molecular biological regulatory mechanism of BPs in regulating bone homeostasis are overviewed systematically. Moreover, the currently available methods (e.g., chemical reaction, porous carriers, and organic material films) of BP coatings construction are outlined and summarized in detail. As one of the key directions, the latest advances of BP-coated implants to enhance bone repair and osseointegration in basic experiments and clinical trials are presented and critically evaluated. Finally, the challenges and prospects of BP coatings are also purposed, and it will open a new chapter in clinical translation for BP-coated implants.
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Affiliation(s)
- Jiaxin Zhang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Haotian Bai
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Miao Bai
- Department of Ocular Fundus Disease, Ophthalmology Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Xiaonan Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - ZuHao Li
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Haowen Xue
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Jincheng Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Yutao Cui
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Hui Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Yanbing Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Rongqi Zhou
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Xiujie Zhu
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Mingwei Xu
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Xin Zhao
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - He Liu
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
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Wiglusz K, Dobrzynski M, Gutbier M, Wiglusz RJ. Nanofluorapatite Hydrogels in the Treatment of Dentin Hypersensitivity: A Study of Physiochemical Properties and Fluoride Release. Gels 2023; 9:gels9040271. [PMID: 37102883 PMCID: PMC10137577 DOI: 10.3390/gels9040271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
The aim of this work was to prepare a new hydrogel based on nanohydroxyapatite (nFAP, 10% w/w) and fluorides (4% w/w), both of which are used as sources of fluoride ions in the treatment of dentin hypersensitivity, and to characterize its physicochemical properties. The release of fluoride ions from 3 gels (G-F, G-F-nFAP, and G-nFAP gel) was controlled in Fusayama–Meyer artificial saliva at pH 4.5, 6.6, and 8.0. The properties of the formulations were determined by an analysis of viscosity, a shear rate test, a swelling study, and gel aging. Various methods, i.e., FT-IR spectroscopy, UV-VIS spectroscopy, and thermogravimetric, electrochemical, and rheological analysis, were used for the experiment. The profiles of fluoride release indicate that the amount of fluoride ions released increases with a decrease in the pH value. The low pH value facilitated water absorption by the hydrogel, which was also confirmed by the swelling test, and it promoted the exchange of ions with the surrounding environment. Under conditions similar to physiological conditions (at pH 6.6), the amounts of fluorides released into artificial saliva were approximately 250 µg/cm2 and 300 µg/cm2 for the G-F-nFAP hydrogel and G-F hydrogel, respectively. The aging study and properties of the gels showed a loosening of the gel network structure. The Casson rheological model was used to assess the rheological properties of the non-Newtonian fluids. Hydrogels consisting of nanohydroxyapatite and sodium fluoride are promising biomaterials in the prevention and management of the dentin hypersensitivity.
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Hydroxyapatite or Fluorapatite—Which Bioceramic Is Better as a Base for the Production of Bone Scaffold?—A Comprehensive Comparative Study. Int J Mol Sci 2023; 24:ijms24065576. [PMID: 36982648 PMCID: PMC10059826 DOI: 10.3390/ijms24065576] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023] Open
Abstract
Hydroxyapatite (HAP) is the most common calcium phosphate ceramic that is used in biomedical applications, e.g., as an inorganic component of bone scaffolds. Nevertheless, fluorapatite (FAP) has gained great attention in the area of bone tissue engineering in recent times. The aim of this study was a comprehensive comparative evaluation of the biomedical potential of fabricated HAP- and FAP-based bone scaffolds, to assess which bioceramic is better for regenerative medicine applications. It was demonstrated that both biomaterials had a macroporous microstructure, with interconnected porosity, and were prone to slow and gradual degradation in a physiological environment and in acidified conditions mimicking the osteoclast-mediated bone resorption process. Surprisingly, FAP-based biomaterial revealed a significantly higher degree of biodegradation than biomaterial containing HAP, which indicated its higher bioabsorbability. Importantly, the biomaterials showed a similar level of biocompatibility and osteoconductivity regardless of the bioceramic type. Both scaffolds had the ability to induce apatite formation on their surfaces, proving their bioactive property, that is crucial for good implant osseointegration. In turn, performed biological experiments showed that tested bone scaffolds were non-toxic and their surfaces promoted cell proliferation and osteogenic differentiation. Moreover, the biomaterials did not exert a stimulatory effect on immune cells, since they did not generate excessive amounts of reactive oxygen species (ROS) and reactive nitrogen species (RNS), indicating a low risk of inflammatory response after implantation. In conclusion, based on the obtained results, both FAP- and HAP-based scaffolds have an appropriate microstructure and high biocompatibility, being promising biomaterials for bone regeneration applications. However, FAP-based biomaterial has higher bioabsorbability than the HAP-based scaffold, which is a very important property from the clinical point of view, because it enables a progressive replacement of the bone scaffold with newly formed bone tissue.
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Sauro S, Spagnuolo G, Del Giudice C, Neto DMA, Fechine PBA, Chen X, Rengo S, Chen X, Feitosa VP. Chemical, structural and cytotoxicity characterisation of experimental fluoride-doped calcium phosphates as promising remineralising materials for dental applications. Dent Mater 2023; 39:391-401. [PMID: 36907820 DOI: 10.1016/j.dental.2023.03.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/14/2023] [Accepted: 03/03/2023] [Indexed: 03/12/2023]
Abstract
OBJECTIVES This study aimed at evaluating the cytotoxicity, chemical and structural properties of experimental fluoride-doped calcium-phosphates as potential remineralising materials for dental applications. METHODS Experimental calcium phosphates were formulated using β-tricalcium phosphate, monocalcium phosphate monohydrate, calcium hydroxide, and different concentrations of calcium/sodium fluoride salts [(5 wt%: VSG5F), (10 wt%: VSG10F), (20 wt%: VSG20F)]. A fluoride-free calcium phosphate (VSG) was used as control. Each tested material was immersed in simulated body fluid (SBF), (24 h, 15 and 30 days) to assess their ability to crystallise into apatite-like. Cumulative fluoride release was assayed up to 45 days. Moreover, each powder was placed into a medium containing human dental pulp stem cells (200 mg/mL) and their cytotoxicity was analysed using the 3-(4,5-dimethylthiazol-2-yl)- 2,5-diphenyltetrazolium bromide (MTT) assay (24 h, 48 h and 72 h incubation). These latter results were statistically analysed by ANOVA and Tukey's test (α = 0.05). RESULTS All the experimental VSG-F materials produced fluoride-containing apatite-like crystals after SBF immersion. VSG20F presented prolonged release of fluoride ions into the storage media (45d). VSG, VSG10F and VSG20F showed a significant cytotoxicity at dilution of 1:1, while at 1:5, only VSG and VSG20F demonstrated a reduction in cell viability. At lower dilutions (1:10, 1:50 and 1:100) all specimens showed no significant toxicity to hDPSCs, but an increase in cell proliferation. SIGNIFICANCE The experimental fluoride-doped calcium-phosphates are biocompatible and possess a clear ability to evoke fluoride-containing apatite-like crystallisation. Hence, they may be promising remineralising materials for dental applications.
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Affiliation(s)
- Salvatore Sauro
- Dental Biomaterials & Minimally Invasive Dentistry, Departamento de Odontologia, CEU Cardenal Herrera University, Alfara del Patriarca, Valencia, Spain.
| | - Gianrico Spagnuolo
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples "Federico II", 80131 Naples, Italy
| | - Carmela Del Giudice
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples "Federico II", 80131 Naples, Italy
| | - Davino M Andrade Neto
- Federal Institute of Education, Science, and Technology of Ceará, Campus Camocim, 62400-000 Camocim, CE, Brazil
| | - Pierre B A Fechine
- Grupo de Química de Materiais Avançados (GQMat) - Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará (UFC), Campus do Pici, CP 12100, Fortaleza CE 60451-970, Brazil
| | - Xiaohui Chen
- Division of Dentistry, School of Medical Sciences, The University of Manchester, Manchester, UK
| | - Sandro Rengo
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples "Federico II", 80131 Naples, Italy
| | - Xiaojing Chen
- Xiangya School of Stomatology and Hospital, Central South University, Changsha 410008, Hunan, China; Hunan Key Laboratory of Oral Health Research, Central South University, Changsha, 410008, Hunan, China; Institute of Dentistry, Dental Physical Sciences Unit, Queen Mary University of London, London, United Kingdom
| | - Victor P Feitosa
- Research Division, Paulo Picanço School of Dentistry, 900 Joaquim Sá St., Fortaleza 60135-218, Ceará, Brazil
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Kreller T, Zimmermann J, van Rienen U, Boccaccini AR, Jonitz-Heincke A, Detsch R. Alternating electric field stimulation: Phenotype analysis and osteoclast activity of differentiated RAW 264.7 macrophages on hydroxyapatite-coated Ti6Al4V surfaces and their crosstalk with MC3T3-E1 pre-osteoblasts. BIOMATERIALS ADVANCES 2023; 146:213285. [PMID: 36640524 DOI: 10.1016/j.bioadv.2023.213285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/21/2022] [Accepted: 01/06/2023] [Indexed: 01/11/2023]
Affiliation(s)
- T Kreller
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich Alexander-University Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - J Zimmermann
- Institute of General Electrical Engineering, University of Rostock, 18051 Rostock, Germany
| | - U van Rienen
- Institute of General Electrical Engineering, University of Rostock, 18051 Rostock, Germany; Department Life, Light and Matter, University of Rostock, 18051 Rostock, Germany; Department Ageing of Individuals and Society, University of Rostock, 18051 Rostock, Germany
| | - A R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich Alexander-University Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - A Jonitz-Heincke
- Research Laboratory for Biomechanics and Implant Technology, Department of Orthopedics, Rostock University Medical Center, 18057 Rostock, Germany
| | - R Detsch
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich Alexander-University Erlangen-Nuremberg, 91058 Erlangen, Germany.
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Seyedmajidi S, Seyedmajidi M, Haghanifar S. Optimization of Fluorapatite/Bioactive Glass Nanocomposite Foams as Bone Tissue Scaffold: An in Vivo Study. INTERNATIONAL JOURNAL OF MOLECULAR AND CELLULAR MEDICINE 2023; 12:388-400. [PMID: 39006199 PMCID: PMC11240056 DOI: 10.22088/ijmcm.bums.12.4.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/29/2024] [Accepted: 05/01/2024] [Indexed: 07/16/2024]
Abstract
The present study investigated the suitability of nanocomposite foams of fluorapatite and bioactive glass (FA /BG) in different weight ratios as scaffolds for bone tissue in rat tibia regeneration to determine the optimal composition. FA and BG nano powders with a weight ratio of 25% FA/75% BG (compound 1) and 75% FA/25% BG (compound 2) were used as precursors for gel casting to produce nanocomposite foams. Thirty rats were randomly divided into two equal groups. Disk-shaped samples of each compound were implanted into the tibias of 15 rats. After 15, 30, or 60 days, five rats from each group were sacrificed and subjected to radiological, histopathological, and histomorphometrical examination. Data were analyzed using SPSS software. No foreign body reaction was observed in either group at all intervals, and the bone-biomaterial junction was direct. Overall, the inflammation rate, and the number of blood vessels, osteoblasts, and osteoclasts decreased over time in both groups. However, the number of osteocytes, trabecular bone thickness, and the percentage of new bone formation increased, in contrast to the remaining biomaterial percentage. Most of the changes in the group implanted with compound 2 were significantly more significant and faster than in the other group. Although the composite with the higher percentage of FA was superior to the composite with the higher percentage of BG, considering the results of our previous similar studies, the composite with the same percentage of FA and BG is more favorable to be used as a substitute for bone tissue in the body.
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Affiliation(s)
- Seyedali Seyedmajidi
- Dental Materials Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.
| | - Maryam Seyedmajidi
- Dental Materials Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.
| | - Sina Haghanifar
- Oral Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.
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Furuse H, Kato D, Morita K, Suzuki TS, Kim BN. Characterization of Transparent Fluorapatite Ceramics Fabricated by Spark Plasma Sintering. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8157. [PMID: 36431642 PMCID: PMC9698385 DOI: 10.3390/ma15228157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/28/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Highly optically transparent polycrystalline fluorapatite ceramics with hexagonal crystal structures were fabricated via a liquid-phase synthesis of fluorapatite powder, followed by spark plasma sintering (SPS). The effect of sintering temperature, as observed using a thermopile, on the optical transmittance and microstructure of the ceramics was investigated in order to determine suitable sintering conditions. As a result, high optical transmittance was obtained in the SPS temperature range of 950-1100 °C. The highest optical transmittance was obtained for the ceramic sample sintered at 1000 °C, and its average grain size was evaluated at only 134 nm. The grain size dramatically increased with temperature, and the ceramics became translucent at SPS temperatures above 1200 °C. The mechanical and thermal properties of the ceramics were measured to evaluate the thermal shock parameter, which was found to be comparable to or slightly smaller than that of single-crystal fluorapatite. This transparent polycrystalline fluorapatite ceramic material should prove useful in a wide range of applications, for example as a biomaterial or optical/laser material, in the future. Furthermore, the knowledge obtained in this study should help to promote the application of this ceramic material.
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Affiliation(s)
- Hiroaki Furuse
- Kitami Institute of Technology, 165 Koen-cho, Kitami 090-8507, Hokkaido, Japan
| | - Daichi Kato
- Kitami Institute of Technology, 165 Koen-cho, Kitami 090-8507, Hokkaido, Japan
| | - Koji Morita
- National Institute for Materials Science, 1-2-1, Sengen, Tsukuba 305-0047, Ibaraki, Japan
| | - Tohru S. Suzuki
- National Institute for Materials Science, 1-2-1, Sengen, Tsukuba 305-0047, Ibaraki, Japan
| | - Byung-Nam Kim
- National Institute for Materials Science, 1-2-1, Sengen, Tsukuba 305-0047, Ibaraki, Japan
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Hydrothermal Synthesis of Fluorapatite Coatings over Titanium Implants for Enhanced Osseointegration-An In Vivo Study in the Rabbit. J Funct Biomater 2022; 13:jfb13040241. [PMID: 36412882 PMCID: PMC9680447 DOI: 10.3390/jfb13040241] [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: 10/19/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
This work aims at the development and characterization of fluorapatite coatings, innovatively prepared by the hydrothermal method, aiming for enhanced osseointegration of titanium implants. Fluoride-containing coatings were prepared and characterized by scanning and transmission electron microscopy, Fourier-transform infrared spectroscopy-attenuated total reflectance, and X-ray photoelectron spectroscopy. The biological response was characterized by microtomographic evaluation and histomorphometric analysis upon orthotopic implantation in a translational rabbit experimental model. Physic-chemical analysis revealed the inclusion of fluoride in the apatite lattice with fluorapatite formation, associated with the presence of citrate species. The in vivo biological assessment of coated implants revealed an enhanced bone formation process-with increased bone-to-implant contact and bone volume. The attained enhancement of the osteogenic process may be attributable to the conjoined modulatory activity of selected fluoride and citrate levels within the produced coatings. In this regard, the production of fluorapatite coatings with citrate, through the hydrothermal method, entails a promising approach for enhanced osseointegration in implant dentistry and orthopedic applications.
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A new hydrogel with fluorapatite nanoparticles for osteogenic differentiation of human adipose-derived stem cells in tissue engineering field. Cell Tissue Res 2022; 390:399-411. [PMID: 36152061 DOI: 10.1007/s00441-022-03691-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 09/14/2022] [Indexed: 11/02/2022]
Abstract
Since scaffolds are engineered to support functional tissue formation, their design and materials play an essential role in medical fields by providing different mechanical function. The aim of this study was to investigate the synthesis and structural characterization of collagen-gelatin (COL-GEL) composite scaffolds containing fluorapatite (FA) nanoparticles as well as evaluation of the osteogenic differentiation of human adipose-derived stem cells (hADSCs). First, the composite scaffolds were evaluated using Fourier transform infrared spectroscopy, scanning electron microscopy, and X-ray diffraction. The cytotoxicity of scaffolds and various concentrations of FA nanoparticles was studied through MTT assay and acridine orange/ethidium bromide staining. Next, the differentiated hADSCs were analyzed using Alizarin red and von Kossa staining, calcium content assay, alkaline phosphatase (ALP) activity, real-time RT-PCR, and immunocytochemical analyses. According to the characterization analyses, the composite scaffolds were properly integrated. The results also illustrated that COL-GEL composite scaffolds in the presence of FA nanoparticles not only showed no cytotoxicity but also increased ALP activity and calcium deposition as well as the expression of osteogenic genes, including Runx2, Col-I, ALP, and osteocalcin and the synthesis of proteins such as osteocalcin and osteopontin in vitro. The obtained data were confirmed by Alizarin red and von Kossa staining. These results are very promising for further tissue engineering experiments, in which FA nanoparticle incorporation into COL-GEL composite scaffolds is a novel approach that improves the surface COL-GEL composite scaffolds for tissue engineering application in vitro.
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Improving the Mechanical Resistance of Hydroxyapatite/Chitosan Composite Materials Made of Nanofibers with Crystalline Preferential Orientation. MATERIALS 2022; 15:ma15134718. [PMID: 35806844 PMCID: PMC9268343 DOI: 10.3390/ma15134718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 11/17/2022]
Abstract
The stability and mechanical properties of hydroxyapatite (HAp)/Chitosan composite materials depend on the dispersion of HAp aggregates in the chitosan matrix and on the chemical interaction between them. Therefore, hexagonal cross-sectioned HAp nanofibers were produced using a microwave-assisted hydrothermal method. Glutamic acid was used to control the HAp crystal growth; thereby, nanofibers were obtained with a preferential crystalline orientation, and they were grown along the “c” axis of HAp crystal structures. This morphology exposed the (300) and (100) crystal planes on the surface, and several phosphate groups and calcium ions were also exposed; they were able to form numerous chemical interactions with the amine, hydroxyl, and carbonyl groups of chitosan. Consequently, the final mechanical resistance of the composite materials was synergistically increased. Nanofibers were mixed with commercial chitosan using a sonotrode to improve their dispersion within the biopolymer matrix and prevent migration. The HAp nanofiber/Chitosan composite materials showed higher mechanical resistance than that observed in similar materials with the same chemical composition that were made of commercial HAp powders, which were used as reference materials. The mechanical resistance under tension of the composite materials made of nanofibers was similar to that reported for cortical bone.
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Kroczek K, Turek P, Mazur D, Szczygielski J, Filip D, Brodowski R, Balawender K, Przeszłowski Ł, Lewandowski B, Orkisz S, Mazur A, Budzik G, Cebulski J, Oleksy M. Characterisation of Selected Materials in Medical Applications. Polymers (Basel) 2022; 14:polym14081526. [PMID: 35458276 PMCID: PMC9027145 DOI: 10.3390/polym14081526] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 11/19/2022] Open
Abstract
Tissue engineering is an interdisciplinary field of science that has developed very intensively in recent years. The first part of this review describes materials with medical and dental applications from the following groups: metals, polymers, ceramics, and composites. Both positive and negative sides of their application are presented from the point of view of medical application and mechanical properties. A variety of techniques for the manufacture of biomedical components are presented in this review. The main focus of this work is on additive manufacturing and 3D printing, as these modern techniques have been evaluated to be the best methods for the manufacture of medical and dental devices. The second part presents devices for skull bone reconstruction. The materials from which they are made and the possibilities offered by 3D printing in this field are also described. The last part concerns dental transitional implants (scaffolds) for guided bone regeneration, focusing on polylactide–hydroxyapatite nanocomposite due to its unique properties. This section summarises the current knowledge of scaffolds, focusing on the material, mechanical and biological requirements, the effects of these devices on the human body, and their great potential for applications.
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Affiliation(s)
- Kacper Kroczek
- Doctoral School of Engineering and Technical Sciences, Rzeszow University of Technology, 35-959 Rzeszow, Poland;
| | - Paweł Turek
- Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 35-959 Rzeszow, Poland; (Ł.P.); (G.B.)
- Correspondence: (P.T.); (D.M.)
| | - Damian Mazur
- Faculty of Electrical and Computer Engineering, Rzeszow University of Technology, 35-959 Rzeszow, Poland
- Correspondence: (P.T.); (D.M.)
| | - Jacek Szczygielski
- Faculty of Medicine, University of Rzeszow, 35-959 Rzeszow, Poland; (J.S.); (K.B.); (B.L.); (S.O.); (A.M.)
- Department of Neurosurgery, Faculty of Medicine, Saarland University, 66123 Saarbrücken, Germany
| | - Damian Filip
- Institute of Medical Science, University of Rzeszow, 35-959 Rzeszow, Poland;
| | - Robert Brodowski
- Department of Maxillofacial Surgery, Fryderyk Chopin Clinical Voivodeship Hospital No.1 in Rzeszow, 35-055 Rzeszow, Poland;
| | - Krzysztof Balawender
- Faculty of Medicine, University of Rzeszow, 35-959 Rzeszow, Poland; (J.S.); (K.B.); (B.L.); (S.O.); (A.M.)
| | - Łukasz Przeszłowski
- Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 35-959 Rzeszow, Poland; (Ł.P.); (G.B.)
| | - Bogumił Lewandowski
- Faculty of Medicine, University of Rzeszow, 35-959 Rzeszow, Poland; (J.S.); (K.B.); (B.L.); (S.O.); (A.M.)
- Department of Maxillofacial Surgery, Fryderyk Chopin Clinical Voivodeship Hospital No.1 in Rzeszow, 35-055 Rzeszow, Poland;
| | - Stanisław Orkisz
- Faculty of Medicine, University of Rzeszow, 35-959 Rzeszow, Poland; (J.S.); (K.B.); (B.L.); (S.O.); (A.M.)
| | - Artur Mazur
- Faculty of Medicine, University of Rzeszow, 35-959 Rzeszow, Poland; (J.S.); (K.B.); (B.L.); (S.O.); (A.M.)
| | - Grzegorz Budzik
- Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 35-959 Rzeszow, Poland; (Ł.P.); (G.B.)
| | - Józef Cebulski
- Institute of Physics, University of Rzeszow, 35-959 Rzeszow, Poland;
| | - Mariusz Oleksy
- Faculty of Chemistry, Rzeszow University of Technology, 35-959 Rzeszow, Poland;
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Nature-Inspired Effects of Naturally Occurring Trace Element-Doped Hydroxyapatite Combined with Surface Interactions of Mineral-Apatite Single Crystals on Human Fibroblast Behavior. Int J Mol Sci 2022; 23:ijms23020802. [PMID: 35054988 PMCID: PMC8775611 DOI: 10.3390/ijms23020802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/05/2022] [Accepted: 01/06/2022] [Indexed: 12/13/2022] Open
Abstract
Innovative engineering design for biologically active hydroxyapatites requires enhancing both mechanical and physical properties, along with biocompatibility, by doping with appropriate chemical elements. Herein, the purpose of this investigation was to evaluate and elucidate the model of naturally occurring hydroxyapatite and the effects of doped trace elements on the function of normal human fibroblasts, representing the main cells of connective tissues. The substrates applied (geological apatites with hexagonal prismatic crystal habit originated from Slyudyanka, Lake Baikal, Russia (GAp) and from Imilchil, The Atlas Mountains, Morocco (YAp)) were prepared from mineral natural apatite with a chemical composition consistent with the building blocks of enamel and enriched with a significant F− content. Materials in the form of powders, extracts and single-crystal plates have been investigated. Moreover, the effects on the function of fibroblasts cultured on the analyzed surfaces in the form of changes in metabolic activity, proliferation and cell morphology were evaluated. Apatite plates were also evaluated for cytotoxicity and immune cell activation capacity. The results suggest that a moderate amount of F− has a positive effect on cell proliferation, whereas an inhibitory effect was attributed to the Cl− concentration. It was found that for (100) GAp plate, fibroblast proliferation was significantly increased, whereas for (001) YAp plate, it was significantly reduced, with no cytotoxic effect and no immune response from macrophages exposed to these materials. The study of the interaction of fibroblasts with apatite crystal surfaces provides a characterization relevant to medical applications and may contribute to the design of biomaterials suitable for medical applications and the evaluation of their bioavailability.
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Borkowski L, Przekora A, Belcarz A, Palka K, Jojczuk M, Lukasiewicz P, Nogalski A, Ginalska G. Highly Porous Fluorapatite/β-1,3-Glucan Composite for Bone Tissue Regeneration: Characterization and In-Vitro Assessment of Biomedical Potential. Int J Mol Sci 2021; 22:ijms221910414. [PMID: 34638753 PMCID: PMC8508652 DOI: 10.3390/ijms221910414] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/23/2021] [Accepted: 09/23/2021] [Indexed: 02/02/2023] Open
Abstract
A novel fluorapatite/glucan composite (“FAP/glucan”) was developed for the treatment of bone defects. Due to the presence of polysaccharide polymer (β-1,3-glucan), the composite is highly flexible and thus very convenient for surgery. Its physicochemical and microstructural properties were evaluated using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), mercury intrusion, mechanical testing and compared with the reference material, which was a hydroxyapatite/glucan composite (“HAP/glucan”) with hydroxyapatite granules (HAP) instead of FAP. It was found that FAP/glucan has a higher density and lower porosity than the reference material. The correlation between the Young’s modulus and the compressive strength between the materials is different in a dry and wet state. Bioactivity assessment showed a lower ability to form apatite and lower uptake of apatite-forming ions from the simulated body fluid by FAP/glucan material in comparison to the reference material. Moreover, FAP/glucan was determined to be of optimal fluoride release capacity for osteoblasts growth requirements. The results of cell culture experiments showed that fluoride-containing biomaterial was non-toxic, enhanced the synthesis of osteocalcin and stimulated the adhesion of osteogenic cells.
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Affiliation(s)
- Leszek Borkowski
- Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland; (A.B.); (G.G.)
- Correspondence: ; Tel.: +48-81-448-70-27; Fax: +48-81-448-70-20
| | - Agata Przekora
- Independent Unit of Tissue Engineering and Regenerative Medicine, Chair of Biomedical Sciences, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland;
| | - Anna Belcarz
- Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland; (A.B.); (G.G.)
| | - Krzysztof Palka
- Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland;
| | - Mariusz Jojczuk
- Chair and Department of Traumatology and Emergency Medicine, Medical University of Lublin, Staszica 11, 20-081 Lublin, Poland; (M.J.); (P.L.); (A.N.)
| | - Piotr Lukasiewicz
- Chair and Department of Traumatology and Emergency Medicine, Medical University of Lublin, Staszica 11, 20-081 Lublin, Poland; (M.J.); (P.L.); (A.N.)
| | - Adam Nogalski
- Chair and Department of Traumatology and Emergency Medicine, Medical University of Lublin, Staszica 11, 20-081 Lublin, Poland; (M.J.); (P.L.); (A.N.)
| | - Grazyna Ginalska
- Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland; (A.B.); (G.G.)
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New Approach for Preparing In Vitro Bioactive Scaffold Consisted of Ag-Doped Hydroxyapatite + Polyvinyltrimethoxysilane. Polymers (Basel) 2021; 13:polym13111695. [PMID: 34067319 PMCID: PMC8196823 DOI: 10.3390/polym13111695] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/18/2021] [Accepted: 05/20/2021] [Indexed: 11/16/2022] Open
Abstract
Recently, researchers have focused on the biocompatibility and mechanical properties of highly porous structures of biomaterials products. Porous composites are a new category of bioengineering that possess excellent functional and structural properties. In this study, the physical and mechanical properties of prepared doped silver (Ag)-hydroxyapatite (HA) by the mechanochemical and spark plasma sintering (SPS) methods were investigated. The influence of dopant on phase formation, structural properties, mechanical properties and morphological characteristics was investigated. Furthermore, in this case, as a new approach to produce a porous scaffold with an average size of >100 µm, the hair band was used as a mold. According to the Monshi-Scherrer method, the crystal size of scaffold was calculated 38 ± 2 nm and this value was in the good agreement with average value from transmission electron microscopy (TEM) analysis. In addition, the stress-strain compression test of scaffold was considered, and the maximum value of compressive strength was recorded ~15.71 MPa. Taking into account the XRD, TEM, Fourier-transform infrared (FTIR), scanning electron microscope (SEM) and energy dispersive X-Ray analysis (EDAX) analysis, the prepared scaffold was bioactive and the effects of doped Ag-HA and the use of polyvinyltrimethoxysilane (PVTMS) as an additive were desirable. The results showed that the effect of thermal treatment on composed of Ag and HA were impressive while no change in transformation was observed at 850 °C. In addition, PVTMS plays an important role as an additive for preventing the decomposition and creating open-microporous in the scaffold that these porosities can be helpful for increasing bioactivity.
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Catauro M, Ciprioti SV. Characterization of Hybrid Materials Prepared by Sol-Gel Method for Biomedical Implementations. A Critical Review. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1788. [PMID: 33916333 PMCID: PMC8038627 DOI: 10.3390/ma14071788] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 03/26/2021] [Accepted: 04/01/2021] [Indexed: 12/23/2022]
Abstract
The interaction between tissues and biomaterials (BM) has the purpose of improving and replacing anatomical parts of the human body, avoiding the occurrence of adverse reactions in the host organism. Unfortunately, the early failure of implants cannot be currently avoided, since neither a good mixture of mechanical and chemical characteristics of materials nor their biocompatibility has been yet achieved. Bioactive glasses are recognized to be a fine class of bioactive substances for good repair and replacement. BM interact with living bones through the formation of a hydroxyapatite surface layer that is analogous to bones. Bioglasses' composition noticeably affects their biological properties, as does the synthesis method, with the best one being the versatile sol-gel technique, which includes the change of scheme from a 'sol' fluid into a 'gel'. This process is widely used to prepare many materials for biomedical implants (e.g., hip and knee prostheses, heart valves, and ceramic, glassy and hybrid materials to serve as carriers for drug release). Nanoparticles prepared by the sol-gel method are interesting systems for biomedical implementations, and particularly useful for cancer therapy. This review provides many examples concerning the synthesis and characterization of the above-mentioned materials either taken from literature and from recently prepared zirconia/polyethylene glycol (PEG) hybrids, and the corresponding results are extensively discussed.
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Affiliation(s)
- Michelina Catauro
- Department of Engineering, University of Campania “Luigi Vanvitelli”, Via Roma 29, I-813031 Aversa, Italy
| | - Stefano Vecchio Ciprioti
- Department of Basic and Applied Science for Engineering (S.B.A.I.), Sapienza University of Rome, Via del Castro Laurenziano 7, Building RM017, I-00161 Rome, Italy
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Malysheva K, Kwaśniak K, Gnilitskyi I, Barylyak A, Zinchenko V, Fahmi A, Korchynskyi O, Bobitski Y. Functionalization of Polycaprolactone Electrospun Osteoplastic Scaffolds with Fluorapatite and Hydroxyapatite Nanoparticles: Biocompatibility Comparison of Human Versus Mouse Mesenchymal Stem Cells. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1333. [PMID: 33802003 PMCID: PMC8001513 DOI: 10.3390/ma14061333] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/02/2021] [Accepted: 03/04/2021] [Indexed: 12/11/2022]
Abstract
A capability for effective tissue reparation is a living requirement for all multicellular organisms. Bone exits as a precisely orchestrated balance of bioactivities of bone forming osteoblasts and bone resorbing osteoclasts. The main feature of osteoblasts is their capability to produce massive extracellular matrix enriched with calcium phosphate minerals. Hydroxyapatite and its composites represent the most common form of bone mineral providing mechanical strength and significant osteoinductive properties. Herein, hydroxyapatite and fluorapatite functionalized composite scaffolds based on electrospun polycaprolactone have been successfully fabricated. Physicochemical properties, biocompatibility and osteoinductivity of generated matrices have been validated. Both the hydroxyapatite and fluorapatite containing polycaprolactone composite scaffolds demonstrated good biocompatibility towards mesenchymal stem cells. Moreover, the presence of both hydroxyapatite and fluorapatite nanoparticles increased scaffolds' wettability. Furthermore, incorporation of fluorapatite nanoparticles enhanced the ability of the composite scaffolds to interact and support the mesenchymal stem cells attachment to their surfaces as compared to hydroxyapatite enriched composite scaffolds. The study of osteoinductive properties showed the capacity of fluorapatite and hydroxyapatite containing composite scaffolds to potentiate the stimulation of early stages of mesenchymal stem cells' osteoblast differentiation. Therefore, polycaprolactone based composite scaffolds functionalized with fluorapatite nanoparticles generates a promising platform for future bone tissue engineering applications.
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Affiliation(s)
- Khrystyna Malysheva
- Department of Human Immunology, Faculty of Medicine, University of Rzeszow, Warzywna 1A, 35-959 Rzeszow, Poland; (K.M.); (K.K.)
- Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszow, Warzywna 1A, 35-959 Rzeszow, Poland
| | - Konrad Kwaśniak
- Department of Human Immunology, Faculty of Medicine, University of Rzeszow, Warzywna 1A, 35-959 Rzeszow, Poland; (K.M.); (K.K.)
- Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszow, Warzywna 1A, 35-959 Rzeszow, Poland
| | - Iaroslav Gnilitskyi
- “NoviNano Lab” LLC, Pasternaka 5, 79015 Lviv, Ukraine;
- Department of Photonics, Lviv Polytechnic National University, S. Bandera 12, 79013 Lviv, Ukraine;
| | - Adriana Barylyak
- Department of Therapeutic Dentistry, Danylo Halytsky Lviv National Medical University, Pekarska 69b, 79010 Lviv, Ukraine;
| | - Viktor Zinchenko
- Department of Chemistry of Functional Inorganic Materials, Bogatsky Physico-Chemical Institute of the National Academy of Sciences of Ukraine, Lustdorfska doroga 86, 65080 Odessa, Ukraine;
| | - Amir Fahmi
- Faculty of Technology and Bionics, Rhine-Waal University of Applied Science, Marie-Curie 1, 47533 Kleve, Germany;
| | - Olexandr Korchynskyi
- Department of Human Immunology, Faculty of Medicine, University of Rzeszow, Warzywna 1A, 35-959 Rzeszow, Poland; (K.M.); (K.K.)
- Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszow, Warzywna 1A, 35-959 Rzeszow, Poland
- Department of Biotechnology and Radiology, S.Gzhytskyi National University of Veterinary Medicine and Biotechnologies, 79010 Lviv, Ukraine
- Department of Molecular Immunology, Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, 01161 Kyiv, Ukraine
| | - Yaroslav Bobitski
- Department of Photonics, Lviv Polytechnic National University, S. Bandera 12, 79013 Lviv, Ukraine;
- Institute of Physics, Centrum of Microelectronics and Nanotechnology, University of Rzeszow, S. Pigonia 1, 35-959 Rzeszow, Poland
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Dai LL, Nudelman F, Chu CH, Lo ECM, Mei ML. The effects of strontium-doped bioactive glass and fluoride on hydroxyapatite crystallization. J Dent 2021; 105:103581. [PMID: 33434634 DOI: 10.1016/j.jdent.2021.103581] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/17/2020] [Accepted: 01/05/2021] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES This study investigated the effects of a new strontium-doped bioactive glass and fluoride on hydroxyapatite crystallization. METHODS We designed an in vitro experiment with calcium phosphate (CaCl2·2H2O + K2HPO4 in buffer solution) with different concentrations of strontium-doped bioactive glass (1 mg/mL or 5 mg/mL), and different concentrations of fluoride (0 ppm, 1 ppm or 5 ppm). Tris-buffered saline served as negative control. After incubation at 37 ℃ for 48 h, the shape and organization of crystals were examined by transmission electron microscopy (TEM) and electron diffraction. Structure of the crystals was assessed by powder X-ray diffraction (P-XRD) and unit cell parameters were calculated. Characterization of the crystals were performed by Raman spectroscopy and Fourier Transform Infrared Spectroscopy (FTIR). RESULTS TEM and selected-area electron diffraction revealed that the precipitates in all experimental groups were crystalline apatite. There was an interaction between strontium and fluoride with different concentrations on crystal thickness (p = 0.008). P-XRD indicated the formation of strontium-substituted-fluorohydroxyapatite and strontium-substituted-hydroxyapatite in the groups with both bioactive glass and fluoride. Expansion or contraction of crystal unit cell was influenced by the concentrations of strontium and fluoride. Raman spectra showed strong phosphate band at 960 cm-1 in all experimental groups and displayed no obvious shift. FTIR results confirmed the formation of apatite. CONCLUSIONS The results of this study suggest that strontium-doped bioactive glass and fluoride have synergistic effects on hydroxyapatite crystallization. CLINICAL SIGNIFICANCE Strontium-doped bioactive glass and fluoride have synergistic effects on hydroxyapatite crystallization by producing strontium-substituted-hydroxyapatite and strontium-substituted-fluorohydroxyapatite with enhanced bioactivity and reduced solubility which could be beneficial for caries management.
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Affiliation(s)
- Lin Lu Dai
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region.
| | - Fabio Nudelman
- EaStCHEM, School of Chemistry, The University of Edinburgh, Edinburgh, UK.
| | - Chun Hung Chu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region.
| | - Edward Chin Man Lo
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region.
| | - May Lei Mei
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region; Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
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19
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The electrospun poly(ε‐caprolactone)/fluoridated hydroxyapatite nanocomposite for bone tissue engineering. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4836] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Santos-Coquillat A, Esteban-Lucia M, Martinez-Campos E, Mohedano M, Arrabal R, Blawert C, Zheludkevich M, Matykina E. PEO coatings design for Mg-Ca alloy for cardiovascular stent and bone regeneration applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110026. [DOI: 10.1016/j.msec.2019.110026] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 06/19/2019] [Accepted: 07/26/2019] [Indexed: 02/03/2023]
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Pajor K, Pajchel L, Kolmas J. Hydroxyapatite and Fluorapatite in Conservative Dentistry and Oral Implantology-A Review. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2683. [PMID: 31443429 PMCID: PMC6747619 DOI: 10.3390/ma12172683] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/15/2019] [Accepted: 08/20/2019] [Indexed: 01/18/2023]
Abstract
Calcium phosphate, due to its similarity to the inorganic fraction of mineralized tissues, has played a key role in many areas of medicine, in particular, regenerative medicine and orthopedics. It has also found application in conservative dentistry and dental surgery, in particular, as components of toothpaste and mouth rinse, coatings of dental implants, cements, and bone substitute materials for the restoration of cavities in maxillofacial surgery. In dental applications, the most important role is played by hydroxyapatite and fluorapatite, i.e., calcium phosphates characterized by the highest chemical stability and very low solubility. This paper presents the role of both apatites in dentistry and a review of recent achievements in the field of the application of these materials.
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Affiliation(s)
- Kamil Pajor
- Analytical Group, Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy with Laboratory Medicine Division, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Lukasz Pajchel
- Analytical Group, Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy with Laboratory Medicine Division, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Joanna Kolmas
- Analytical Group, Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy with Laboratory Medicine Division, Medical University of Warsaw, 02-097 Warsaw, Poland.
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Bennett BT, Beck JP, Papangkorn K, Colombo JS, Bachus KN, Agarwal J, Shieh JF, Jeyapalina S. Characterization and evaluation of fluoridated apatites for the development of infection-free percutaneous devices. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:665-675. [DOI: 10.1016/j.msec.2019.03.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 11/30/2018] [Accepted: 03/07/2019] [Indexed: 12/15/2022]
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23
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Taktak R, Elghazel A, Bouaziz J, Charfi S, Keskes H. Tricalcium phosphate-Fluorapatite as bone tissue engineering: Evaluation of bioactivity and biocompatibility. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018. [DOI: 10.1016/j.msec.2017.11.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Liu R, Qiao W, Huang B, Chen Z, Fang J, Li Z, Chen Z. Fluorination Enhances the Osteogenic Capacity of Porcine Hydroxyapatite. Tissue Eng Part A 2018; 24:1207-1217. [PMID: 29376480 DOI: 10.1089/ten.tea.2017.0381] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
In a previous study, we successfully prepared fluorinated porcine hydroxyapatite (FPHA) by immersing porcine hydroxyapatite (PHA) in an aqueous solution of 0.25 M sodium fluoride (NaF) under thermal treatment, and the resulting FPHA showed better physicochemical and biological properties than PHA. The purpose of this study was to further investigate how fluorine incorporation influenced the biocompatibility and osteogenic capacity of PHA. The concentrations of Ca, P, F, and Mg ions in PHA and FPHA extracts were detected by inductively coupled plasma optical emission spectrometry. Rat bone marrow stromal cells (rBMSCs) were treated with PHA and FPHA extracts, and the effects of these extracts on cell proliferation and osteoblastic differentiation were evaluated via Cell Counting Kit-8 assay, alkaline phosphatase assay, and real time-quantitative polymerase chain reaction. For the in vivo assessment, PHA and FPHA were implanted into subcutaneous pockets (n = 6) and rat calvarial defects (diameter = 5 mm, n = 14) for 12 weeks to determine their biocompatibility and osteogenic capacity by using micro-computed tomography (CT) and histological analysis. FPHA extracts, which release higher concentrations of F and Mg ions, better promoted the osteoblastic differentiation of rBMSCs in vitro. The result of biocompatibility evaluation confirmed that the host response and chronic inflammation cells infiltration degree around PHA and FPHA granules were similar. Micro-CT and histological analysis showed newer mineralized bone formation in rats with FPHA-treated defects than in rats with PHA-treated defects. The results of in vitro and in vivo tests consistently indicate that fluorine incorporation effectively enhanced the osteogenic capacity of PHA.
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Affiliation(s)
- Runheng Liu
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou, People's Republic of China
| | - Wei Qiao
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou, People's Republic of China
| | - Baoxin Huang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou, People's Republic of China
| | - Zetao Chen
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou, People's Republic of China
| | - Jinghan Fang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou, People's Republic of China
| | - Zhipeng Li
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou, People's Republic of China
| | - Zhuofan Chen
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology , Guangzhou, People's Republic of China
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Amaral JG, Pessan JP, Souza JAS, Moraes JCS, Delbem ACB. Cyclotriphosphate associated to fluoride increases hydroxyapatite resistance to acid attack. J Biomed Mater Res B Appl Biomater 2018; 106:2553-2564. [DOI: 10.1002/jbm.b.34072] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 10/12/2017] [Accepted: 12/15/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Jackeline G. Amaral
- Department of Pediatric Dentistry and Public Health; Araçatuba Dental School, Universidade Estadual Paulista (UNESP); Araçatuba São Paulo Brazil
| | - Juliano P. Pessan
- Department of Pediatric Dentistry and Public Health; Araçatuba Dental School, Universidade Estadual Paulista (UNESP); Araçatuba São Paulo Brazil
| | - José Antonio S. Souza
- Department of Pediatric Dentistry and Public Health; Araçatuba Dental School, Universidade Estadual Paulista (UNESP); Araçatuba São Paulo Brazil
| | - João Carlos S. Moraes
- Engeneering School, Universidade Estadual Paulista (UNESP); Ilha Solteira São Paulo Brazil
| | - Alberto Carlos B. Delbem
- Department of Pediatric Dentistry and Public Health; Araçatuba Dental School, Universidade Estadual Paulista (UNESP); Araçatuba São Paulo Brazil
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Reline-assisted green and facile synthesis of fluorapatite nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:121-128. [DOI: 10.1016/j.msec.2017.03.217] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 02/04/2017] [Accepted: 03/23/2017] [Indexed: 11/19/2022]
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Gabriel LP, Santos MEMD, Jardini AL, Bastos GNT, Dias CGBT, Webster TJ, Maciel Filho R. Bio-based polyurethane for tissue engineering applications: How hydroxyapatite nanoparticles influence the structure, thermal and biological behavior of polyurethane composites. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 13:201-208. [PMID: 27720929 DOI: 10.1016/j.nano.2016.09.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 09/13/2016] [Accepted: 09/19/2016] [Indexed: 12/11/2022]
Abstract
In this work, thermoset polyurethane composites were prepared by the addition of hydroxyapatite nanoparticles using the reactants polyol polyether and an aliphatic diisocyanate. The polyol employed in this study was extracted from the Euterpe oleracea Mart. seeds from the Amazon Region of Brazil. The influence of hydroxyapatite nanoparticles on the structure and morphology of the composites was studied using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), the structure was evaluated by Fourier transform infrared spectroscopy (FT-IR), thermal properties were analyzed by thermogravimetry analysis (TGA), and biological properties were studied by in vitro and in vivo studies. It was found that the addition of HA nanoparticles promoted fibroblast adhesion while in vivo investigations with histology confirmed that the composites promoted connective tissue adherence and did not induce inflammation. In this manner, this study supports the further investigation of bio-based, polyurethane/hydroxyapatite composites as biocompatible scaffolds for numerous tissue engineering applications.
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Affiliation(s)
- Laís P Gabriel
- University of Campinas, Chemical Engineering Department, Campinas, São Paulo, Brazil
| | | | - André L Jardini
- University of Campinas, Chemical Engineering Department, Campinas, São Paulo, Brazil
| | - Gilmara N T Bastos
- Federal University of Pará, Laboratory of Neuroinflammation, Belém, Pará, Brazil
| | - Carmen G B T Dias
- Federal University of Pará, Mechanical Engineering Department, Belém, Pará, Brazil
| | - Thomas J Webster
- Northeastern University, Chemical Engineering Department, Boston, MA, USA; Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Rubens Maciel Filho
- University of Campinas, Chemical Engineering Department, Campinas, São Paulo, Brazil
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Dorozhkin SV. Multiphasic calcium orthophosphate (CaPO 4 ) bioceramics and their biomedical applications. CERAMICS INTERNATIONAL 2016; 42:6529-6554. [DOI: 10.1016/j.ceramint.2016.01.062] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
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Taborda JAP, López EO. Research Perspectives on Functional Micro and Nano Scale Coatings. RESEARCH PERSPECTIVES ON FUNCTIONAL MICRO- AND NANOSCALE COATINGS 2016. [DOI: 10.4018/978-1-5225-0066-7.ch006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Research topics related to the production of nanocomposites are the most important directions of development of new semiconductor engineering, ensuring high nanocomposites obtaining useful properties in the scope of biophysical characteristics, biomedical and piezoelectric applications. We present two case studies as Hydroxyapatite are in medical applications and aluminum nitride as acoustic wave sensor. Hydroxyapatite, is the main inorganic structure of the tooth enamel and bone and is a biomaterial that is commonly used in biomedical applications that involve bone substitution, drug delivery and bone regeneration because of its excellent biocompatibility, high bioactivity and good osseoconductivity. Since the past decade. Aluminum nitride (AlN), an electrical insulating ceramic with a wide band gap of 6.3 eV, is a potentially useful dielectric material very important in fields such as optoelectronic and micro electronics.
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Li Z, Huang B, Mai S, Wu X, Zhang H, Qiao W, Luo X, Chen Z. Effects of fluoridation of porcine hydroxyapatite on osteoblastic activity of human MG63 cells. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2015; 16:035006. [PMID: 27877807 PMCID: PMC5099844 DOI: 10.1088/1468-6996/16/3/035006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 04/07/2015] [Accepted: 04/08/2015] [Indexed: 05/28/2023]
Abstract
Biological hydroxyapatite, derived from animal bones, is the most widely used bone substitute in orthopedic and dental treatments. Fluorine is the trace element involved in bone remodeling and has been confirmed to promote osteogenesis when administered at the appropriate dose. To take advantage of this knowledge, fluorinated porcine hydroxyapatite (FPHA) incorporating increasing levels of fluoride was derived from cancellous porcine bone through straightforward chemical and thermal treatments. Physiochemical characteristics, including crystalline phases, functional groups and dissolution behavior, were investigated on this novel FPHA. Human osteoblast-like MG63 cells were cultured on the FPHA to examine cell attachment, cytoskeleton, proliferation and osteoblastic differentiation for in vitro cellular evaluation. Results suggest that fluoride ions released from the FPHA play a significant role in stimulating osteoblastic activity in vitro, and appropriate level of fluoridation (1.5 to 3.1 atomic percents of fluorine) for the FPHA could be selected with high potential for use as a bone substitute.
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Affiliation(s)
- Zhipeng Li
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 LingYuan Road West, Guangzhou 510055, Guangdong, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, 74 ZhongShan 2 Road, Guangzhou 510055, Guangdong, People’s Republic of China
| | - Baoxin Huang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 LingYuan Road West, Guangzhou 510055, Guangdong, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, 74 ZhongShan 2 Road, Guangzhou 510055, Guangdong, People’s Republic of China
| | - Sui Mai
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 LingYuan Road West, Guangzhou 510055, Guangdong, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, 74 ZhongShan 2 Road, Guangzhou 510055, Guangdong, People’s Republic of China
| | - Xiayi Wu
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 LingYuan Road West, Guangzhou 510055, Guangdong, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, 74 ZhongShan 2 Road, Guangzhou 510055, Guangdong, People’s Republic of China
| | - Hanqing Zhang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 LingYuan Road West, Guangzhou 510055, Guangdong, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, 74 ZhongShan 2 Road, Guangzhou 510055, Guangdong, People’s Republic of China
| | - Wei Qiao
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 LingYuan Road West, Guangzhou 510055, Guangdong, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, 74 ZhongShan 2 Road, Guangzhou 510055, Guangdong, People’s Republic of China
| | - Xin Luo
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 LingYuan Road West, Guangzhou 510055, Guangdong, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, 74 ZhongShan 2 Road, Guangzhou 510055, Guangdong, People’s Republic of China
| | - Zhuofan Chen
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 LingYuan Road West, Guangzhou 510055, Guangdong, People’s Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, 74 ZhongShan 2 Road, Guangzhou 510055, Guangdong, People’s Republic of China
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