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Ferraz MP. Bone Grafts in Dental Medicine: An Overview of Autografts, Allografts and Synthetic Materials. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16114117. [PMID: 37297251 DOI: 10.3390/ma16114117] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
This review provides an overview of various materials used in dentistry and oral and maxillofacial surgeries to replace or repair bone defects. The choice of material depends on factors such as tissue viability, size, shape, and defect volume. While small bone defects can regenerate naturally, extensive defects or loss or pathological fractures require surgical intervention and the use of substitute bones. Autologous bone, taken from the patient's own body, is the gold standard for bone grafting but has drawbacks such as uncertain prognosis, surgery at the donor site, and limited availability. Other alternatives for medium and small-sized defects include allografts (from human donors), xenografts (from animals), and synthetic materials with osteoconductive properties. Allografts are carefully selected and processed human bone materials, while xenografts are derived from animals and possess similar chemical composition to human bone. Synthetic materials such as ceramics and bioactive glasses are used for small defects but may lack osteoinductivity and moldability. Calcium-phosphate-based ceramics, particularly hydroxyapatite, are extensively studied and commonly used due to their compositional similarity to natural bone. Additional components, such as growth factors, autogenous bone, and therapeutic elements, can be incorporated into synthetic or xenogeneic scaffolds to enhance their osteogenic properties. This review aims to provide a comprehensive analysis of grafting materials in dentistry, discussing their properties, advantages, and disadvantages. It also highlights the challenges of analyzing in vivo and clinical studies to select the most suitable option for specific situations.
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Affiliation(s)
- Maria Pia Ferraz
- Departamento de Engenharia Metalúrgica e de Materiais, Faculdade de Engenharia da Universidade do Porto, 4200-465 Porto, Portugal
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4099-002 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, 4099-002 Porto, Portugal
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2
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Current Advances in 3D Dynamic Cell Culture Systems. Gels 2022; 8:gels8120829. [PMID: 36547353 PMCID: PMC9778081 DOI: 10.3390/gels8120829] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
The traditional two-dimensional (2D) cell culture methods have a long history of mimicking in vivo cell growth. However, these methods cannot fully represent physiological conditions, which lack two major indexes of the in vivo environment; one is a three-dimensional 3D cell environment, and the other is mechanical stimulation; therefore, they are incapable of replicating the essential cellular communications between cell to cell, cell to the extracellular matrix, and cellular responses to dynamic mechanical stimulation in a physiological condition of body movement and blood flow. To solve these problems and challenges, 3D cell carriers have been gradually developed to provide a 3D matrix-like structure for cell attachment, proliferation, differentiation, and communication in static and dynamic culture conditions. 3D cell carriers in dynamic culture systems could primarily provide different mechanical stimulations which further mimic the real in vivo microenvironment. In this review, the current advances in 3D dynamic cell culture approaches have been introduced, with their advantages and disadvantages being discussed in comparison to traditional 2D cell culture in static conditions.
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3
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Quality control methods in musculoskeletal tissue engineering: from imaging to biosensors. Bone Res 2021; 9:46. [PMID: 34707086 PMCID: PMC8551153 DOI: 10.1038/s41413-021-00167-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 04/23/2021] [Accepted: 06/27/2021] [Indexed: 02/06/2023] Open
Abstract
Tissue engineering is rapidly progressing toward clinical application. In the musculoskeletal field, there has been an increasing necessity for bone and cartilage replacement. Despite the promising translational potential of tissue engineering approaches, careful attention should be given to the quality of developed constructs to increase the real applicability to patients. After a general introduction to musculoskeletal tissue engineering, this narrative review aims to offer an overview of methods, starting from classical techniques, such as gene expression analysis and histology, to less common methods, such as Raman spectroscopy, microcomputed tomography, and biosensors, that can be employed to assess the quality of constructs in terms of viability, morphology, or matrix deposition. A particular emphasis is given to standards and good practices (GXP), which can be applicable in different sectors. Moreover, a classification of the methods into destructive, noninvasive, or conservative based on the possible further development of a preimplant quality monitoring system is proposed. Biosensors in musculoskeletal tissue engineering have not yet been used but have been proposed as a novel technology that can be exploited with numerous advantages, including minimal invasiveness, making them suitable for the development of preimplant quality control systems.
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4
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Re F, Sartore L, Borsani E, Ferroni M, Baratto C, Mahajneh A, Smith A, Dey K, Almici C, Guizzi P, Bernardi S, Faglia G, Magni F, Russo D. Mineralization of 3D Osteogenic Model Based on Gelatin-Dextran Hybrid Hydrogel Scaffold Bioengineered with Mesenchymal Stromal Cells: A Multiparametric Evaluation. MATERIALS 2021; 14:ma14143852. [PMID: 34300769 PMCID: PMC8306641 DOI: 10.3390/ma14143852] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/17/2021] [Accepted: 06/28/2021] [Indexed: 02/06/2023]
Abstract
Gelatin–dextran hydrogel scaffolds (G-PEG-Dx) were evaluated for their ability to activate the bone marrow human mesenchymal stromal cells (BM-hMSCs) towards mineralization. G-PEG-Dx1 and G-PEG-Dx2, with identical composition but different architecture, were seeded with BM-hMSCs in presence of fetal bovine serum or human platelet lysate (hPL) with or without osteogenic medium. G-PEG-Dx1, characterized by a lower degree of crosslinking and larger pores, was able to induce a better cell colonization than G-PEG-Dx2. At day 28, G-PEG-Dx2, with hPL and osteogenic factors, was more efficient than G-PEG-Dx1 in inducing mineralization. Scanning electron microscopy (SEM) and Raman spectroscopy showed that extracellular matrix produced by BM-hMSCs and calcium-positive mineralization were present along the backbone of the G-PEG-Dx2, even though it was colonized to a lesser degree by hMSCs than G-PEG-Dx1. These findings were confirmed by matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI), detecting distinct lipidomic signatures that were associated with the different degree of scaffold mineralization. Our data show that the architecture and morphology of G-PEG-Dx2 is determinant and better than that of G-PEG-Dx1 in promoting a faster mineralization, suggesting a more favorable and active role for improving bone repair.
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Affiliation(s)
- Federica Re
- Bone Marrow Transplant Unit, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy; (F.R.); (S.B.)
- Centro di Ricerca Emato-Oncologica AIL (CREA), ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy
| | - Luciana Sartore
- Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy; (L.S.); (K.D.)
| | - Elisa Borsani
- Division of Anatomy and Physiopathology, Department of Clinical and Experimental Sciences, University of Brescia, Viale Europa 11, 25123 Brescia, Italy;
| | - Matteo Ferroni
- Department of Civil, Environmental, Architectural Engineering and Mathematics (DICATAM), University of Brescia, Via Valotti 9, 25123 Brescia, Italy;
- CNR-IMM Bologna, Via Gobetti 101, 40129 Bologna, Italy
| | | | - Allia Mahajneh
- Clinical Proteomics and Metabolomics Unit, Department of Medicine and Surgery, University of Milano-Bicocca, Via Raoul Follereau 3, 20854 Vedano al Lambro, Italy; (A.M.); (A.S.); (F.M.)
| | - Andrew Smith
- Clinical Proteomics and Metabolomics Unit, Department of Medicine and Surgery, University of Milano-Bicocca, Via Raoul Follereau 3, 20854 Vedano al Lambro, Italy; (A.M.); (A.S.); (F.M.)
| | - Kamol Dey
- Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy; (L.S.); (K.D.)
- Department of Applied Chemistry and Chemical Engineering, Faculty of Science, University of Chittagong, Chittagong 4331, Bangladesh
| | - Camillo Almici
- Laboratory for Stem Cell Manipulation and Cryopreservation, Department of Transfusion Medicine, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy;
| | - Pierangelo Guizzi
- Orthopedics and Traumatology Unit, ASST Spedali Civili, Via Papa Giovanni XXIII 4, 25063 Gardone Val Trompia, 25123 Brescia, Italy;
| | - Simona Bernardi
- Bone Marrow Transplant Unit, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy; (F.R.); (S.B.)
- Centro di Ricerca Emato-Oncologica AIL (CREA), ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy
| | - Guido Faglia
- PRISM Lab, CNR-INO, 25123 Brescia, Italy; (C.B.); (G.F.)
- Department of Information Engineering (DII), University of Brescia, Via Branze 38, 25123 Brescia, Italy
| | - Fulvio Magni
- Clinical Proteomics and Metabolomics Unit, Department of Medicine and Surgery, University of Milano-Bicocca, Via Raoul Follereau 3, 20854 Vedano al Lambro, Italy; (A.M.); (A.S.); (F.M.)
| | - Domenico Russo
- Bone Marrow Transplant Unit, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy; (F.R.); (S.B.)
- Correspondence:
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5
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Re F, Sartore L, Moulisova V, Cantini M, Almici C, Bianchetti A, Chinello C, Dey K, Agnelli S, Manferdini C, Bernardi S, Lopomo NF, Sardini E, Borsani E, Rodella LF, Savoldi F, Paganelli C, Guizzi P, Lisignoli G, Magni F, Salmeron-Sanchez M, Russo D. 3D gelatin-chitosan hybrid hydrogels combined with human platelet lysate highly support human mesenchymal stem cell proliferation and osteogenic differentiation. J Tissue Eng 2019; 10:2041731419845852. [PMID: 31105928 PMCID: PMC6507314 DOI: 10.1177/2041731419845852] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/02/2019] [Indexed: 01/25/2023] Open
Abstract
Bone marrow and adipose tissue human mesenchymal stem cells were seeded in highly performing 3D gelatin–chitosan hybrid hydrogels of varying chitosan content in the presence of human platelet lysate and evaluated for their proliferation and osteogenic differentiation. Both bone marrow and adipose tissue human mesenchymal stem cells in gelatin–chitosan hybrid hydrogel 1 (chitosan content 8.1%) or gelatin–chitosan hybrid hydrogel 2 (chitosan 14.9%) showed high levels of viability (80%–90%), and their proliferation and osteogenic differentiation was significantly higher with human platelet lysate compared to fetal bovine serum, particularly in gelatin–chitosan hybrid hydrogel 1. Mineralization was detected early, after 21 days of culture, when human platelet lysate was used in the presence of osteogenic stimuli. Proteomic characterization of human platelet lysate highlighted 59 proteins mainly involved in functions related to cell adhesion, cellular repairing mechanisms, and regulation of cell differentiation. In conclusion, the combination of our gelatin–chitosan hybrid hydrogels with hPL represents a promising strategy for bone regenerative medicine using human mesenchymal stem cells.
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Affiliation(s)
- Federica Re
- Department of Clinical and Experimental Sciences, University of Brescia, Bone Marrow Transplant Unit, ASST Spedali Civili, Brescia, Italy.,Centro di Ricerca Emato-Oncologica AIL (CREA), ASST Spedali Civili, Brescia, Italy
| | - Luciana Sartore
- Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, Italy
| | - Vladimira Moulisova
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, UK
| | - Marco Cantini
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, UK
| | - Camillo Almici
- Department of Transfusion Medicine, Laboratory for Stem Cells Manipulation and Cryopreservation, ASST Spedali Civili, Brescia, Italy
| | - Andrea Bianchetti
- Department of Transfusion Medicine, Laboratory for Stem Cells Manipulation and Cryopreservation, ASST Spedali Civili, Brescia, Italy
| | - Clizia Chinello
- Department of Medicine and Surgery, Clinical Proteomics and Metabolomics Unit, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Kamol Dey
- Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, Italy
| | - Silvia Agnelli
- Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, Italy
| | - Cristina Manferdini
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Simona Bernardi
- Department of Clinical and Experimental Sciences, University of Brescia, Bone Marrow Transplant Unit, ASST Spedali Civili, Brescia, Italy.,Centro di Ricerca Emato-Oncologica AIL (CREA), ASST Spedali Civili, Brescia, Italy
| | - Nicola F Lopomo
- Department of Information Engineering, University of Brescia, Brescia, Italy
| | - Emilio Sardini
- Department of Information Engineering, University of Brescia, Brescia, Italy
| | - Elisa Borsani
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.,Interdipartimental University Center of Research "Adaptation and Regeneration of Tissues and Organs (ARTO)," University of Brescia, Brescia, Italy
| | - Luigi F Rodella
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.,Interdipartimental University Center of Research "Adaptation and Regeneration of Tissues and Organs (ARTO)," University of Brescia, Brescia, Italy
| | - Fabio Savoldi
- Department of Orthodontics, Dental School, University of Brescia, Brescia, Italy.,Dental Materials Science, Discipline of Applied Oral Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Corrado Paganelli
- Department of Orthodontics, Dental School, University of Brescia, Brescia, Italy
| | - Pierangelo Guizzi
- Orthopedics and Traumatology Unit, ASST Spedali Civili, Brescia, Italy
| | - Gina Lisignoli
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Fulvio Magni
- Department of Medicine and Surgery, Clinical Proteomics and Metabolomics Unit, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Manuel Salmeron-Sanchez
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, UK
| | - Domenico Russo
- Department of Clinical and Experimental Sciences, University of Brescia, Bone Marrow Transplant Unit, ASST Spedali Civili, Brescia, Italy
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Westhauser F, Reible B, Höllig M, Heller R, Schmidmaier G, Moghaddam A. Combining advantages: Direct correlation of two-dimensional microcomputed tomography datasets onto histomorphometric slides to quantify three-dimensional bone volume in scaffolds. J Biomed Mater Res A 2018; 106:1812-1821. [DOI: 10.1002/jbm.a.36377] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 01/24/2018] [Accepted: 02/15/2018] [Indexed: 12/16/2022]
Affiliation(s)
- F. Westhauser
- HTRG - Heidelberg Trauma Research Group, Center of Orthopedics, Traumatology, and Spinal Cord Injury; Heidelberg University Hospital, Schlierbacher Landstraße 200a; Heidelberg 69118 Germany
| | - B. Reible
- HTRG - Heidelberg Trauma Research Group, Center of Orthopedics, Traumatology, and Spinal Cord Injury; Heidelberg University Hospital, Schlierbacher Landstraße 200a; Heidelberg 69118 Germany
| | - M. Höllig
- Clinic for Trauma Surgery, Orthopedic Surgery, and Hand Surgery; SLK-Kliniken Heilbronn GmbH, Am Gesundbrunnen 20-26; Heilbronn 74078 Germany
| | - R. Heller
- HTRG - Heidelberg Trauma Research Group, Center of Orthopedics, Traumatology, and Spinal Cord Injury; Heidelberg University Hospital, Schlierbacher Landstraße 200a; Heidelberg 69118 Germany
| | - G. Schmidmaier
- HTRG - Heidelberg Trauma Research Group, Center of Orthopedics, Traumatology, and Spinal Cord Injury; Heidelberg University Hospital, Schlierbacher Landstraße 200a; Heidelberg 69118 Germany
| | - A. Moghaddam
- ATORG - Aschaffenburg Trauma and Orthopedic Research Group, Clinic for Orthopedic Surgery, Trauma Surgery, and Hand Surgery, Klinikum Aschaffenburg-Alzenau, Am Hasenkopf 1; Aschaffenburg 63739 Germany
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7
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Puwanun S, Delaine‐Smith RM, Colley HE, Yates JM, MacNeil S, Reilly GC. A simple rocker-induced mechanical stimulus upregulates mineralization by human osteoprogenitor cells in fibrous scaffolds. J Tissue Eng Regen Med 2018; 12:370-381. [PMID: 28486747 PMCID: PMC5836908 DOI: 10.1002/term.2462] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 02/28/2017] [Accepted: 05/04/2017] [Indexed: 01/01/2023]
Abstract
Biodegradable electrospun polycaprolactone scaffolds can be used to support bone-forming cells and could fill a thin bony defect, such as in cleft palate. Oscillatory fluid flow has been shown to stimulate bone production in human progenitor cells in monolayer culture. The aim of this study was to examine whether bone matrix production by primary human mesenchymal stem cells from bone marrow or jaw periosteal tissue could be stimulated using oscillatory fluid flow supplied by a standard see-saw rocker. This was investigated for cells in two-dimensional culture and within electrospun polycaprolactone scaffolds. From day 4 of culture onwards, samples were rocked at 45 cycles/min for 1 h/day, 5 days/week (rocking group). Cell viability, calcium deposition, collagen production, alkaline phosphatase activity and vascular endothelial growth factor secretion were evaluated to assess the ability of the cells to undergo bone differentiation and induce vascularisation. Both cell types produced more mineralized tissue when subjected to rocking and supplemented with dexamethasone. Mesenchymal progenitors and primary human mesenchymal stem cells from bone marrow in three-dimensional scaffolds upregulated mineral deposition after rocking culture as assessed by micro-computed tomography and alizarin red staining. Interestingly, vascular endothelial growth factor secretion, which has previously been shown to be mechanically sensitive, was not altered by rocking in this system and was inhibited by dexamethasone. Rocker culture may be a cost effective, simple pretreatment for bone tissue engineering for small defects such as cleft palate.
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Affiliation(s)
- Sasima Puwanun
- Faculty of DentistryNaresuan UniversityThailand
- Department of Materials Science and EngineeringUniversity of SheffieldUK
| | | | | | - Julian M. Yates
- Oral and Maxillofacial Surgery and Implantology, School of DentistryUniversity of ManchesterUK
| | - Sheila MacNeil
- Department of Materials Science and EngineeringUniversity of SheffieldUK
| | - Gwendolen C. Reilly
- Department of Materials Science and EngineeringUniversity of SheffieldUK
- INSIGNEO Institute for in silico MedicineUniversity of SheffieldUK
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8
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Micro-Computed-Tomography-Guided Analysis of In Vitro Structural Modifications in Two Types of 45S5 Bioactive Glass Based Scaffolds. MATERIALS 2017; 10:ma10121341. [PMID: 29168763 PMCID: PMC5744276 DOI: 10.3390/ma10121341] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 11/19/2017] [Accepted: 11/20/2017] [Indexed: 12/14/2022]
Abstract
Three-dimensional 45S5 bioactive glass (BG)-based scaffolds are being investigated for bone regeneration. Besides structural properties, controlled time-dependent alteration of scaffold morphology is crucial to achieve optimal scaffold characteristics for successful bone repair. There is no in vitro evidence concerning the dependence between structural characteristics and dissolution behavior of 45S5 BG-based scaffolds of different morphology. In this study, the dissolution behavior of scaffolds fabricated by the foam replica method using polyurethane foam (Group A) and maritime sponge Spongia Agaricina (Group B) as sacrificial templates was analyzed by micro-computed-tomography (µCT). The scaffolds were immersed in Dulbecco’s Modified Eagle Medium for 56 days under static cell culture conditions and underwent µCT-analysis initially, and after 7, 14, and 56 days. Group A showed high porosity (91%) and trabecular structure formed by macro-pores (average diameter 692 µm ± 72 µm). Group-B-scaffolds were less porous (51%), revealing an optimal pore size distribution within the window of 110–500 µm pore size diameter, combined with superior mechanical stability. Both groups showed similar structural alteration upon immersion. Surface area and scaffold volume increased whilst density decreased, reflecting initial dissolution followed by hydroxycarbonate-apatite-layer-formation on the scaffold surfaces. In vitro- and/or in vivo-testing of cell-seeded BG-scaffolds used in this study should be performed to evaluate the BG-scaffolds’ time-dependent osteogenic properties in relation to the measured in vitro structural changes.
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9
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Lewin S, Barba A, Persson C, Franch J, Ginebra MP, Öhman-Mägi C. Evaluation of bone formation in calcium phosphate scaffolds with
μ
CT-method validation using SEM. Biomed Mater 2017; 12:065005. [DOI: 10.1088/1748-605x/aa801d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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10
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Cengiz IF, Oliveira JM, Reis RL. Micro-computed tomography characterization of tissue engineering scaffolds: effects of pixel size and rotation step. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:129. [PMID: 28721665 DOI: 10.1007/s10856-017-5942-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 06/27/2017] [Indexed: 05/27/2023]
Abstract
Quantitative assessment of micro-structure of materials is of key importance in many fields including tissue engineering, biology, and dentistry. Micro-computed tomography (µ-CT) is an intensively used non-destructive technique. However, the acquisition parameters such as pixel size and rotation step may have significant effects on the obtained results. In this study, a set of tissue engineering scaffolds including examples of natural and synthetic polymers, and ceramics were analyzed. We comprehensively compared the quantitative results of µ-CT characterization using 15 acquisition scenarios that differ in the combination of the pixel size and rotation step. The results showed that the acquisition parameters could statistically significantly affect the quantified mean porosity, mean pore size, and mean wall thickness of the scaffolds. The effects are also practically important since the differences can be as high as 24% regarding the mean porosity in average, and 19.5 h and 166 GB regarding the characterization time and data storage per sample with a relatively small volume. This study showed in a quantitative manner the effects of such a wide range of acquisition scenarios on the final data, as well as the characterization time and data storage per sample. Herein, a clear picture of the effects of the pixel size and rotation step on the results is provided which can notably be useful to refine the practice of µ-CT characterization of scaffolds and economize the related resources.
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Affiliation(s)
- Ibrahim Fatih Cengiz
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães, 4805-017, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.
| | - Joaquim Miguel Oliveira
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães, 4805-017, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães, 4805-017, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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11
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Thoma DS, Lim HC, Sapata VM, Yoon SR, Jung RE, Jung UW. Recombinant bone morphogenetic protein-2 and platelet-derived growth factor-BB for localized bone regeneration. Histologic and radiographic outcomes of a rabbit study. Clin Oral Implants Res 2017; 28:e236-e243. [DOI: 10.1111/clr.13002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel S. Thoma
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zurich Switzerland
| | - Hyun-Chang Lim
- Department of Periodontology; School of Dentistry; Kyung Hee University; Seoul Korea
| | - Vitor M. Sapata
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zurich Switzerland
| | - Sora R. Yoon
- Department of Periodontology; Yonsei University; College of Dentistry; Seoul Korea
| | - Ronald E. Jung
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zurich Switzerland
| | - Ui-Won Jung
- Department of Periodontology; Yonsei University; College of Dentistry; Seoul Korea
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12
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Feng SW, Ho KN, Chan YH, Chang KJ, Lai WY, Huang HM. Damping Factor as a Diagnostic Parameter for Assessment of Osseointegration during the Dental Implant Healing Process: An Experimental Study in Rabbits. Ann Biomed Eng 2016; 44:3668-3678. [DOI: 10.1007/s10439-016-1675-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 06/07/2016] [Indexed: 11/30/2022]
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13
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Westhauser F, Weis C, Hoellig M, Swing T, Schmidmaier G, Weber MA, Stiller W, Kauczor HU, Moghaddam A. Heidelberg-mCT-Analyzer: a novel method for standardized microcomputed-tomography-guided evaluation of scaffold properties in bone and tissue research. ROYAL SOCIETY OPEN SCIENCE 2015; 2:150496. [PMID: 26716008 PMCID: PMC4680623 DOI: 10.1098/rsos.150496] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 10/13/2015] [Indexed: 06/05/2023]
Abstract
Bone tissue engineering and bone scaffold development represent two challenging fields in orthopaedic research. Micro-computed tomography (mCT) allows non-invasive measurement of these scaffolds' properties in vivo. However, the lack of standardized mCT analysis protocols and, therefore, the protocols' user-dependency make interpretation of the reported results difficult. To overcome these issues in scaffold research, we introduce the Heidelberg-mCT-Analyzer. For evaluation of our technique, we built 10 bone-inducing scaffolds, which underwent mCT acquisition before ectopic implantation (T0) in mice, and at explantation eight weeks thereafter (T1). The scaffolds' three-dimensional reconstructions were automatically segmented using fuzzy clustering with fully automatic level-setting. The scaffold itself and its pores were then evaluated for T0 and T1. Analysing the scaffolds' characteristic parameter set with our quantification method showed bone formation over time. We were able to demonstrate that our algorithm obtained the same results for basic scaffold parameters (e.g. scaffold volume, pore number and pore volume) as other established analysis methods. Furthermore, our algorithm was able to analyse more complex parameters, such as pore size range, tissue mineral density and scaffold surface. Our imaging and post-processing strategy enables standardized and user-independent analysis of scaffold properties, and therefore is able to improve the quantitative evaluations of scaffold-associated bone tissue-engineering projects.
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Affiliation(s)
- Fabian Westhauser
- Trauma and Reconstructive Surgery, Center of Orthopedics, Traumatology, and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, Heidelberg 69118, Germany
- HTRG - Heidelberg Trauma Research Group, Schlierbacher Landstraße 200a, Heidelberg 69118, Germany
| | - Christian Weis
- Clinic of Diagnostic and Interventional Radiology (DIR), Heidelberg University Hospital, Im Neuenheimer Feld 110, Heidelberg 69120, Germany
| | - Melanie Hoellig
- Trauma and Reconstructive Surgery, Center of Orthopedics, Traumatology, and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, Heidelberg 69118, Germany
- HTRG - Heidelberg Trauma Research Group, Schlierbacher Landstraße 200a, Heidelberg 69118, Germany
| | - Tyler Swing
- Trauma and Reconstructive Surgery, Center of Orthopedics, Traumatology, and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, Heidelberg 69118, Germany
- HTRG - Heidelberg Trauma Research Group, Schlierbacher Landstraße 200a, Heidelberg 69118, Germany
| | - Gerhard Schmidmaier
- Trauma and Reconstructive Surgery, Center of Orthopedics, Traumatology, and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, Heidelberg 69118, Germany
- HTRG - Heidelberg Trauma Research Group, Schlierbacher Landstraße 200a, Heidelberg 69118, Germany
| | - Marc-André Weber
- Clinic of Diagnostic and Interventional Radiology (DIR), Heidelberg University Hospital, Im Neuenheimer Feld 110, Heidelberg 69120, Germany
| | - Wolfram Stiller
- Clinic of Diagnostic and Interventional Radiology (DIR), Heidelberg University Hospital, Im Neuenheimer Feld 110, Heidelberg 69120, Germany
| | - Hans-Ulrich Kauczor
- Clinic of Diagnostic and Interventional Radiology (DIR), Heidelberg University Hospital, Im Neuenheimer Feld 110, Heidelberg 69120, Germany
| | - Arash Moghaddam
- Trauma and Reconstructive Surgery, Center of Orthopedics, Traumatology, and Spinal Cord Injury, Heidelberg University Hospital, Schlierbacher Landstraße 200a, Heidelberg 69118, Germany
- HTRG - Heidelberg Trauma Research Group, Schlierbacher Landstraße 200a, Heidelberg 69118, Germany
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14
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Boerckel JD, Mason DE, McDermott AM, Alsberg E. Microcomputed tomography: approaches and applications in bioengineering. Stem Cell Res Ther 2014; 5:144. [PMID: 25689288 PMCID: PMC4290379 DOI: 10.1186/scrt534] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Microcomputed tomography (microCT) has become a standard and essential tool for quantifying structure-function relationships, disease progression, and regeneration in preclinical models and has facilitated numerous scientific and bioengineering advancements over the past 30 years. In this article, we recount the early events that led to the initial development of microCT and review microCT approaches for quantitative evaluation of bone, cartilage, and cardiovascular structures, with applications in fundamental structure-function analysis, disease, tissue engineering, and numerical modeling. Finally, we address several next-generation approaches under active investigation to improve spatial resolution, acquisition time, tissue contrast, radiation dose, and functional and molecular information.
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