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Hatefi S, Alizargar J, Le Roux F, Hatefi K, Etemadi Sh M, Davids H, Hsieh NC, Smith F, Abou-El-Hossein K. Review of physical stimulation techniques for assisting distraction osteogenesis in maxillofacial reconstruction applications. Med Eng Phys 2021; 91:28-38. [PMID: 34074463 DOI: 10.1016/j.medengphy.2021.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 02/17/2021] [Accepted: 03/24/2021] [Indexed: 01/24/2023]
Abstract
Distraction Osteogenesis (DO) is an emerging limb lengthening method for the reconstruction of the hard tissue and the surrounding soft tissue, in different human body zones. DO plays an important role in treating bone defects in Maxillofacial Reconstruction Applications (MRA) due to reduced side effects and better formed bone tissue compared to conventional reconstruction methods i.e. autologous bone graft, and alloplast implantation. Recently, varying techniques have been evaluated to enhance the characteristics of the newly formed tissues and process parameters. Promising results have been shown in assisting DO treatments while benefiting bone formation mechanisms by using physical stimulation techniques, including photonic, electromagnetic, electrical, and mechanical stimulation technique. Using assisted DO techniques has provided superior results in the outcome of the DO procedure compared to a standard DO procedure. However, DO methods, as well as assisting technologies applied during the DO procedure, are still emerging. Studies and experiments on developed solutions related to this field have been limited to animal and clinical trials. In this review paper, recent advances in physical stimulation techniques and their effects on the outcome of the DO treatment in MRA are surveyed. By studying the effects of using assisting techniques during the DO treatment, enabling an ideal assisted DO technique in MRA can be possible. Although mentioned techniques have shown constructive effects during the DO procedure, there is still a need for more research and investigation to be done to fully understand the effects of assisting techniques and advanced technologies for use in an ultimate DO procedure in MRA.
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Affiliation(s)
- Shahrokh Hatefi
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Javad Alizargar
- Research Center for Healthcare Industry Innovation, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan.
| | - Francis Le Roux
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Katayoun Hatefi
- Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran.
| | - Milad Etemadi Sh
- Department of Oral and Maxillofacial Surgery, Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Hajierah Davids
- Department of Physiology, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Nan-Chen Hsieh
- Department of Information Management, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan.
| | - Farouk Smith
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Khaled Abou-El-Hossein
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa.
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de Camargo Reis Mello D, Rodrigues LM, D'Antola Mello FZ, Gonçalves TF, Ferreira B, Schneider SG, de Oliveira LD, de Vasconcellos LMR. Biological and microbiological interactions of Ti-35Nb-7Zr alloy and its basic elements on bone marrow stromal cells: good prospects for bone tissue engineering. Int J Implant Dent 2020; 6:65. [PMID: 33099690 PMCID: PMC7585585 DOI: 10.1186/s40729-020-00261-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 09/02/2020] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND An effective biomaterial for bone replacement should have properties to avoid bacterial contamination and promote bone formation while inducing rapid cell differentiation simultaneously. Bone marrow stem cells are currently being investigated because of their known potential for differentiation in osteoblast lineage. This makes these cells a good option for stem cell-based therapy. We have aimed to analyze, in vitro, the potential of pure titanium (Ti), Ti-35Nb-7Zr alloy (A), niobium (Nb), and zirconia (Zr) to avoid the microorganisms S. aureus (S.a) and P. aeruginosa (P.a). Furthermore, our objective was to evaluate if the basic elements of Ti-35Nb-7Zr alloy have any influence on bone marrow stromal cells, the source of stem cells, and observe if these metals have properties to induce cell differentiation into osteoblasts. METHODS Bone marrow stromal cells (BMSC) were obtained from mice femurs and cultured in osteogenic media without dexamethasone as an external source of cell differentiation. The samples were divided into Ti-35Nb-7Zr alloy (A), pure titanium (Ti), Nb (niobium), and Zr (zirconia) and were characterized by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). After predetermined periods, cell interaction, cytotoxicity, proliferation, and cell differentiation tests were performed. For monotypic biofilm formation, standardized suspensions (106 cells/ml) with the microorganisms S. aureus (S.a) and P. aeruginosa (P.a) were cultured for 24 h on the samples and submitted to an MTT test. RESULTS All samples presented cell proliferation, growth, and spreading. All groups presented cell viability above 70%, but the alloy (A) showed better results, with statistical differences from Nb and Zr samples. Zr expressed higher ALP activity and was statistically different from the other groups (p < 0.05). In contrast, no statistical difference was observed between the samples as regards mineralization nodules. Lower biofilm formation of S.a and P.a. was observed on the Nb samples, with statistical differences from the other samples. CONCLUSION Our results suggest that the basic elements present in the alloy have osteoinductive characteristics, and Zr has a good influence on bone marrow stromal cell differentiation. We also believe that Nb has the best potential for reducing the formation of microbial biofilms.
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Affiliation(s)
- Daphne de Camargo Reis Mello
- Department of Bioscience and Oral Diagnosis, São José dos Campos School of Dentistry, Universidade Estadual Paulista (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos, SP, 12245-000, Brazil.
| | - Lais Morandini Rodrigues
- Department of Bioscience and Oral Diagnosis, São José dos Campos School of Dentistry, Universidade Estadual Paulista (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos, SP, 12245-000, Brazil
- Oakland University, Mathematics and Science, 318 Meadow Brook Rd, Rochester Hills, USA
| | - Fabia Zampieri D'Antola Mello
- Department of Bioscience and Oral Diagnosis, São José dos Campos School of Dentistry, Universidade Estadual Paulista (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos, SP, 12245-000, Brazil
| | - Thais Fernanda Gonçalves
- Department of Bioscience and Oral Diagnosis, São José dos Campos School of Dentistry, Universidade Estadual Paulista (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos, SP, 12245-000, Brazil
| | - Bento Ferreira
- Escola de Engenharia de Lorena (EEL-USP), Pólo-Urbo Industrial, Gleba Al-6, S/N, Lorena, SP, Brazil
| | | | - Luciane Dias de Oliveira
- Department of Bioscience and Oral Diagnosis, São José dos Campos School of Dentistry, Universidade Estadual Paulista (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos, SP, 12245-000, Brazil
| | - Luana Marotta Reis de Vasconcellos
- Department of Bioscience and Oral Diagnosis, São José dos Campos School of Dentistry, Universidade Estadual Paulista (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos, SP, 12245-000, Brazil
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Lopes HB, Souza ATP, Freitas GP, Elias CN, Rosa AL, Beloti MM. Effect of focal adhesion kinase inhibition on osteoblastic cells grown on titanium with different topographies. J Appl Oral Sci 2020; 28:e20190156. [PMID: 32049134 PMCID: PMC6999121 DOI: 10.1590/1678-7757-2019-0156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 09/23/2019] [Indexed: 12/30/2022] Open
Abstract
Objective The present study aimed to investigate the participation of focal adhesion kinases (FAK) in interactions between osteoblastic cells and titanium (Ti) surfaces with three different topographies, namely, untreated (US), microstructured (MS), and nanostructured (NS). Methodology Osteoblasts harvested from the calvarial bones of 3-day-old rats were cultured on US, MS and NS discs in the presence of PF-573228 (FAK inhibitor) to evaluate osteoblastic differentiation. After 24 h, we evaluated osteoblast morphology and vinculin expression, and on day 10, the following parameters: gene expression of osteoblastic markers and integrin signaling components, FAK protein expression and alkaline phosphatase (ALP) activity. A smooth surface, porosities at the microscale level, and nanocavities were observed in US, MS, and NS, respectively. Results FAK inhibition decreased the number of filopodia in cells grown on US and MS compared with that in NS. FAK inhibition decreased the gene expression of Alp, bone sialoprotein, osteocalcin, and ALP activity in cells grown on all evaluated surfaces. FAK inhibition did not affect the gene expression of Fak, integrin alpha 1 ( Itga1 ) and integrin beta 1 ( Itgb1 ) in cells grown on MS, increased the gene expression of Fak in cells grown on NS, and increased the gene expression of Itga1 and Itgb1 in cells grown on US and NS. Moreover, FAK protein expression decreased in cells cultured on US but increased in cells cultured on MS and NS after FAK inhibition; no difference in the expression of vinculin was observed among cells grown on all surfaces. Conclusions Our data demonstrate the relevance of FAK in the interactions between osteoblastic cells and Ti surfaces regardless of surface topography. Nanotopography positively regulated FAK expression and integrin signaling pathway components during osteoblast differentiation. In this context, the development of Ti surfaces with the ability to upregulate FAK activity could positively impact the process of implant osseointegration.
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Affiliation(s)
- Helena Bacha Lopes
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Bone Research Laboratory, Ribeirão Preto, São Paulo, Brasil
| | - Alann Thaffarell Portilho Souza
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Bone Research Laboratory, Ribeirão Preto, São Paulo, Brasil
| | - Gileade Pereira Freitas
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Bone Research Laboratory, Ribeirão Preto, São Paulo, Brasil
| | - Carlos Nelson Elias
- Instituto Militar de Engenharia, Laboratório de Biomateriais, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Adalberto Luiz Rosa
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Bone Research Laboratory, Ribeirão Preto, São Paulo, Brasil
| | - Marcio Mateus Beloti
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Bone Research Laboratory, Ribeirão Preto, São Paulo, Brasil
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Marques IDSV, Alfaro MF, Saito MT, da Cruz NC, Takoudis C, Landers R, Mesquita MF, Nociti Junior FH, Mathew MT, Sukotjo C, Barão VAR. Biomimetic coatings enhance tribocorrosion behavior and cell responses of commercially pure titanium surfaces. Biointerphases 2016; 11:031008. [PMID: 27514370 PMCID: PMC4982872 DOI: 10.1116/1.4960654] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 07/25/2016] [Accepted: 07/28/2016] [Indexed: 12/11/2022] Open
Abstract
Biofunctionalized surfaces for implants are currently receiving much attention in the health care sector. Our aims were (1) to create bioactive Ti-coatings doped with Ca, P, Si, and Ag produced by microarc oxidation (MAO) to improve the surface properties of biomedical implants, (2) to investigate the TiO2 layer stability under wear and corrosion, and (3) to evaluate human mesenchymal stem cells (hMSCs) responses cultured on the modified surfaces. Tribocorrosion and cell experiments were performed following the MAO treatment. Samples were divided as a function of different Ca/P concentrations and treatment duration. Higher Ca concentration produced larger porous and harder coatings compared to the untreated group (p < 0.001), due to the presence of rutile structure. Free potentials experiments showed lower drops (-0.6 V) and higher coating lifetime during sliding for higher Ca concentration, whereas lower concentrations presented similar drops (-0.8 V) compared to an untreated group wherein the drop occurred immediately after the sliding started. MAO-treated surfaces improved the matrix formation and osteogenic gene expression levels of hMSCs. Higher Ca/P ratios and the addition of Ag nanoparticles into the oxide layer presented better surface properties, tribocorrosive behavior, and cell responses. MAO is a promising technique to enhance the biological, chemical, and mechanical properties of dental implant surfaces.
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Affiliation(s)
- Isabella da Silva Vieira Marques
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Maria Fernanda Alfaro
- Department of Restorative Dentistry, University of Illinois at Chicago, College of Dentistry, 801 S Paulina, Chicago, Illinois 60612
| | - Miki Taketomi Saito
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Nilson Cristino da Cruz
- Laboratory of Technological Plasmas, Engineering College, Univ Estadual Paulista (UNESP), Av Três de Março, 511, Sorocaba, São Paulo 18087-180, Brazil
| | - Christos Takoudis
- Departments of Chemical Engineering and Bioengineering, University of Illinois at Chicago, 851 S. Morgan St., SEO 218, Chicago, Illinois 60607
| | - Richard Landers
- Institute of Physics Gleb Wataghin, University of Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Barão Geraldo, Campinas, São Paulo 13083-859, Brazil
| | - Marcelo Ferraz Mesquita
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Francisco Humberto Nociti Junior
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Mathew T Mathew
- Department of Biomedical Sciences, University of Illinois, College of Medicine at Rockford, 1601 Parkview Avenue, Rockford, Illinois 61107
| | - Cortino Sukotjo
- Department of Restorative Dentistry, University of Illinois at Chicago, College of Dentistry, 801 S Paulina, Chicago, Illinois 60612
| | - Valentim Adelino Ricardo Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
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de Andrade DP, de Vasconcellos LMR, Carvalho ICS, Forte LFDBP, de Souza Santos EL, Prado RFD, Santos DRD, Cairo CAA, Carvalho YR. Titanium-35niobium alloy as a potential material for biomedical implants: In vitro study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 56:538-44. [PMID: 26249625 DOI: 10.1016/j.msec.2015.07.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 07/03/2015] [Accepted: 07/11/2015] [Indexed: 01/17/2023]
Abstract
Research on new titanium alloys and different surface topographies aims to improve osseointegration. The objective of this study is to analyze the behavior of osteogenic cells cultivated on porous and dense samples of titanium-niobium alloys, and to compare them with the behavior of such type of cells on commercial pure titanium. Samples prepared using powder metallurgy were characterized using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and metallographic and profilometer analyses. Osteogenic cells from newborn rat calvaria were plated over different groups: dense or porous samples composed of Ti or Ti-35niobium (Nb). Cell adhesion, cell proliferation, MTT assay, cell morphology, protein total content, alkaline phosphatase activity, and mineralization nodules were assessed. Results from XRD and EDS analysis confirmed the presence of Ti and Nb in the test alloy. Metallographic analysis revealed interconnected pores, with pore size ranging from 138 to 150μm. The profilometer analysis detected the greatest rugosity within the dense alloy samples. In vitro tests revealed similar biocompatibility between Ti-35Nb and Ti; furthermore, it was possible to verify that the association of porous surface topography and the Ti-35Nb alloy positively influenced mineralized matrix formation. We propose that the Ti-35Nb alloy with porous topography constitutes a biocompatible material with great potential for use in biomedical implants.
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Affiliation(s)
- Dennia Perez de Andrade
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP - Univ Estadual Paulista, State University of São Paulo (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos 12245-000, SP, Brazil
| | - Luana Marotta Reis de Vasconcellos
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP - Univ Estadual Paulista, State University of São Paulo (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos 12245-000, SP, Brazil
| | - Isabel Chaves Silva Carvalho
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP - Univ Estadual Paulista, State University of São Paulo (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos 12245-000, SP, Brazil
| | - Lilibeth Ferraz de Brito Penna Forte
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP - Univ Estadual Paulista, State University of São Paulo (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos 12245-000, SP, Brazil
| | - Evelyn Luzia de Souza Santos
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP - Univ Estadual Paulista, State University of São Paulo (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos 12245-000, SP, Brazil
| | - Renata Falchete do Prado
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP - Univ Estadual Paulista, State University of São Paulo (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos 12245-000, SP, Brazil.
| | - Dalcy Roberto Dos Santos
- Division of Materials, Air and Space Institute, CTA, Praça Mal. do Ar Eduardo Gomes, 14, São José dos Campos 12904-000, SP, Brazil
| | - Carlos Alberto Alves Cairo
- Division of Materials, Air and Space Institute, CTA, Praça Mal. do Ar Eduardo Gomes, 14, São José dos Campos 12904-000, SP, Brazil
| | - Yasmin Rodarte Carvalho
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP - Univ Estadual Paulista, State University of São Paulo (UNESP), Av. Engenheiro Francisco José Longo, 777, São José dos Campos 12245-000, SP, Brazil
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Galli S, Jimbo R, Tovar N, Yoo DY, Anchieta RB, Yamaguchi S, Coelho PG. The effect of osteotomy dimension on osseointegration to resorbable media-treated implants: A study in the sheep. J Biomater Appl 2014; 29:1068-74. [DOI: 10.1177/0885328214553958] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The drilling technique and the surface characteristics are known to influence the healing times of oral implants. The influence of osteotomy dimension on osseointegration of microroughned implant surfaces treated with resorbable blasting media was tested in an in vivo model. Ninety-six implants (ø4.5 mm, 8 mm in length) with resorbable blasting media-treated surfaces were placed in the ileum of six sheep. The final osteotomy diameters were 4.6 mm (reamer), 4.1 mm (loose), 3.7 mm (medium), and 3.2 mm (tight). After three and six weeks of healing, the implants were biomechanically tested and histologically evaluated. Statistical analysis was performed using Page L trend test for ordered and paired sample and linear regression, with significance level at p < 0.05. An overall increase in all dependent variables was observed with the reduction of osteotomy diameter. In addition, all osseointegration scores increased over time. At three weeks, the retention was significantly higher for smaller osteotomies. The histological sections depicted intimate contact of bone with all the implant surfaces and osteoblast lines were visible in all sections. The resorbable blasting media microroughed surfaces achieved successful osseointegration for all the instrumentation procedures tested, with higher osseointegration scores for the high insertion torque group.
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Affiliation(s)
- Silvia Galli
- Department of Prosthodontics, Malmö University, Malmö, Sweden
| | - Ryo Jimbo
- Department of Prosthodontics, Malmö University, Malmö, Sweden
| | - Nick Tovar
- Department of Biomaterials and Biomimetics, New York University, New York, NY, USA
| | - Daniel Y Yoo
- Department of Biomaterials and Biomimetics, New York University, New York, NY, USA
| | - Rodolfo B Anchieta
- Department of Biomaterials and Biomimetics, New York University, New York, NY, USA
| | - Satoshi Yamaguchi
- Department of Biomaterials and Biomimetics, New York University, New York, NY, USA
| | - Paulo G Coelho
- Department of Biomaterials and Biomimetics, New York University, New York, NY, USA
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Felgueiras HP, Castanheira L, Changotade S, Poirier F, Oughlis S, Henriques M, Chakar C, Naaman N, Younes R, Migonney V, Celis JP, Ponthiaux P, Rocha LA, Lutomski D. Biotribocorrosion (tribo-electrochemical) characterization of anodized titanium biomaterial containing calcium and phosphorus before and after osteoblastic cell culture. J Biomed Mater Res B Appl Biomater 2014; 103:661-9. [PMID: 24989830 DOI: 10.1002/jbm.b.33236] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 05/02/2014] [Accepted: 06/05/2014] [Indexed: 01/01/2023]
Abstract
The purpose of this study was to investigate the relationship between the osteoblastic cells behavior and biotribocorrosion phenomena on bioactive titanium (Ti). Ti substrates submitted to bioactive anodic oxidation and etching treatments were cultured up to 28 days with MG63 osteoblast-like cells. Important parameters of in vitro bone-like tissue formation were assessed. Although no major differences were observed between the surfaces topography (both rough) and wettability (both hydrophobic), a significant increase in cell attachment and differentiation was detected on the anodized substrates as product of favorable surface morphology and chemical composition. Alkaline phosphatase production has increased (≈20 nmol/min/mg of protein) on the anodized materials, while phosphate concentration has reached the double of the etched material and calcium production increased (over 20 µg/mL). The mechanical and biological stability of the anodic surfaces were also put to test through biotribocorrosion sliding solicitations, putting in evidence the resistance of the anodic layer and the cells capacity of regeneration after implant degradation. The Ti osteointegration abilities were also confirmed by the development of strong cell-biomaterial bonds at the interface, on both substrates. By combining the biological and mechanical results, the anodized Ti can be considered a viable option for dentistry.
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Affiliation(s)
- H P Felgueiras
- Université Paris 13 Sorbonne Paris Cité, CSPBAT UMR CNRS 7244, Laboratoire de Biomatériaux et Polymères de Spécialité LBPS, UFR SMBH, 74, rue Marcel Cachin, 93017, Bobigny, Paris, France; University of Minho, CT2M, Centre for Mechanical and Materials Technologies, Campus de Azurém, 4800-058, Guimarães, Portugal
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8
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Elias CN, Meirelles L. Improving osseointegration of dental implants. Expert Rev Med Devices 2014; 7:241-56. [DOI: 10.1586/erd.09.74] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Moura CCG, Machado JR, Silva MV, Rodrigues DBR, Zanetta-Barbosa D, Jimbo R, Tovar N, Coelho PG. Evaluation of human polymorphonuclear behavior on textured titanium and calcium-phosphate coated surfaces. Biomed Mater 2013; 8:035010. [DOI: 10.1088/1748-6041/8/3/035010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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10
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Moura CG, Souza MA, Kohal RJ, Dechichi P, Zanetta-Barbosa D, Jimbo R, Teixeira CC, Teixeira HS, Tovar N, Coelho PG. Evaluation of osteogenic cell culture and osteogenic/peripheral blood mononuclear human cell co-culture on modified titanium surfaces. Biomed Mater 2013; 8:035002. [DOI: 10.1088/1748-6041/8/3/035002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Sverzut AT, de Albuquerque GC, Crippa GE, Chiesa R, Valle CD, de Oliveira PT, Beloti MM, Rosa AL. Bone tissue, cellular, and molecular responses to titanium implants treated by anodic spark deposition. J Biomed Mater Res A 2012; 100:3092-8. [DOI: 10.1002/jbm.a.34249] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 04/20/2012] [Accepted: 05/02/2012] [Indexed: 01/24/2023]
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12
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Moura CCG, Souza MA, Dechichi P, Zanetta-Barbosa D, Teixeira CC, Coelho PG. The effect of a nanothickness coating on rough titanium substrate in the osteogenic properties of human bone cells. J Biomed Mater Res A 2010; 94:103-11. [PMID: 20128004 DOI: 10.1002/jbm.a.32661] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
This study evaluated the effect of a bioactive ceramic coating, in the nanothickness range, onto a moderately rough surface on the osteogenic behavior of human bone cells. The cells were harvested from the mandibular mental region and were cultured over Ti-6Al-4V disks of different surfaces: as-machined (M), alumina-blasted/acid etched (AB/AE), and alumina-blasted/acid-etched + 300-500 nm thickness amorphous Ca- and P-based coating obtained by ion beam-assisted deposition (Nano). The culture was then evaluated regarding cell viability, adhesion, morphology, immunolocalization of osteopontin (OPN) and alkaline phosphatase (ALP). The results showed that the surface treatment did not interfere with cell viability. At 1 day, AB/AE and Nano showed higher adhesion than the M surface (p < 0.001). Higher adhesion was observed for the M than the Nano surface at 7 days (p < 0.005). The percentage of cells showing intracellular labeling for OPN at day 1 was significantly higher for the Nano compared to M surface (p < 0.03). The percentage of ALP intracellular labeling at 7 days was significantly higher for the AB/AE compared to the M surface (p < 0.0065); no differences were detected at 14 days. Our results suggest that the presence of a thin bioactive ceramic coating on a rough substrate did not favor the events related to in vitro osteogenesis. (c) 2010 Wiley Periodicals, Inc. J Biomed Mater Res, 2010.
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Affiliation(s)
- Camilla C G Moura
- Department of Immunology, Universidade Federal de Uberlândia, Uberlândia, Brazil
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In vitro cellular response and in vivo primary osteointegration of electrochemically modified titanium. Acta Biomater 2010; 6:1014-24. [PMID: 19800423 DOI: 10.1016/j.actbio.2009.09.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Revised: 09/26/2009] [Accepted: 09/28/2009] [Indexed: 11/23/2022]
Abstract
Anodic spark deposition (ASD) is an attractive technique for improving the implant-bone interface that can be applied to titanium and titanium alloys. This technique produces a surface with microporous morphology and an oxide layer enriched with calcium and phosphorus. The aim of the present study was to investigate the biological response in vitro using primary human osteoblasts as a cellular model and the osteogenic primary response in vivo within a short experimental time frame (2 and 4 weeks) in an animal model (rabbit). Responses were assessed by comparing the new electrochemical biomimetic treatments to an acid-etching treatment as control. The in vitro biological response was characterized by cell morphology, adhesion, proliferation activity and cell metabolic activity. A complete assessment of osteogenic activity in vivo was achieved by estimating static and dynamic histomorphometric parameters at several time points within the considered time frame. The in vitro study showed enhanced osteoblast adhesion and higher metabolic activity for the ASD-treated surfaces during the first days after seeding compared to the control titanium. For the ASD surfaces, the histomorphometry indicated a higher mineral apposition rate within 2 weeks and a more extended bone activation within the first week after surgery, leading to more extensive bone-implant contact after 2 weeks. In conclusion, the ASD surface treatments enhanced the biological response in vitro, promoting an early osteoblast adhesion, and the osteointegrative properties in vivo, accelerating the primary osteogenic response.
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