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Yang X, Wu L, Li C, Li S, Hou W, Hao Y, Lu Y, Li L. Synergistic Amelioration of Osseointegration and Osteoimmunomodulation with a Microarc Oxidation-Treated Three-Dimensionally Printed Ti-24Nb-4Zr-8Sn Scaffold via Surface Activity and Low Elastic Modulus. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3171-3186. [PMID: 38205810 DOI: 10.1021/acsami.3c16459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Biomaterial scaffolds, including bone substitutes, have evolved from being primarily a biologically passive structural element to one in which material properties such as surface topography and chemistry actively direct bone regeneration by influencing stem cells and the immune microenvironment. Ti-6Al-4V(Ti6Al4V) implants, with a significantly higher elastic modulus than human bone, may lead to stress shielding, necessitating improved stability at the bone-titanium alloy implant interface. Ti-24Nb-4Zr-8Sn (Ti2448), a low elastic modulus β-type titanium alloy devoid of potentially toxic elements, was utilized in this study. We employed 3D printing technology to fabricate a porous scaffold structure to further decrease the structural stiffness of the implant to approximate that of cancellous bone. Microarc oxidation (MAO) surface modification technology is then employed to create a microporous structure and a hydrophilic oxide ceramic layer on the surface and interior of the scaffold. In vitro studies demonstrated that MAO treatment enhances the proliferation, adhesion, and osteogenesis capabilities on the scaffold surface. The chemical composition of the MAO-Ti2448 oxide layer is found to enhance the transcription and expression of osteogenic genes in bone mesenchymal stem cells (BMSCs), potentially related to the enrichment of Nb2O5 and SnO2 in the oxide layer. The MAO-Ti2448 scaffold, with its synergistic surface activity and low stiffness, significantly activates the anti-inflammatory macrophage phenotype, creating an immune microenvironment that promotes the osteogenic differentiation of BMSCs. In vivo experiments in a rabbit model demonstrated a significant improvement in the quantity and quality of the newly formed bone trabeculae within the scaffold under the contact osteogenesis pattern with a matched elastic modulus. These trabeculae exhibit robust connections to the external structure of the scaffold, accelerating the formation of an interlocking structure between the bone and implant and providing higher implantation stability. These findings suggest that the MAO-Ti2448 scaffold has significant potential as a bone defect repair material by regulating osteoimmunomodulation and osteogenesis to enhance osseointegration. This study demonstrates an optional strategy that combines the mechanism of reducing the elastic modulus with surface modification treatment, thereby extending the application scope of β-type titanium alloy.
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Affiliation(s)
- Xinyue Yang
- Department of Orthopaedic Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110055, P.R. China
| | - Lijun Wu
- Engineering Research Center of High Entropy Alloy Materials (Liaoning Province), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, P.R. China
| | - Cheng Li
- Department of Orthopaedic Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110055, P.R. China
| | - Shujun Li
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P.R. China
| | - Wentao Hou
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P.R. China
| | - Yulin Hao
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P.R. China
| | - Yiping Lu
- Engineering Research Center of High Entropy Alloy Materials (Liaoning Province), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, P.R. China
| | - Lei Li
- Department of Orthopaedic Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110055, P.R. China
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Mustafa NWNA, Ahmad R, Ahmad Khushaini MA, Kamar Affendi NH, Ab Ghani SM, Tan SK, Ismail MH, Goo CL, Kassim MZ, Lim TW, Teh LK. Porous NiTi Dental Implant Fabricated by a Metal Injection Molding: An in Vivo Biocompatibility Evaluation in an Animal Model. ACS Biomater Sci Eng 2024; 10:405-419. [PMID: 38040671 DOI: 10.1021/acsbiomaterials.3c01551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
This study assessed the corrosion resistance, intracutaneous reactivity, acute systemic toxicity, and in situ tissue effect of the implantation of porous NiTi fabricated by metal injection molding in animal models. For the intracutaneous reactivity study, five intracutaneous injections were administered per site with and without the tested extract in polar and nonpolar solutions. The extract was also delivered via intravenous and intraperitoneal routes for acute systemic toxicity. TiAl6 V4 (control) and porous NiTi were implanted in rabbit femora for a period of 13 weeks to evaluate the in situ tissue response. Corrosion was evaluated through open and cyclic polarization in PBS, while biocompatibility was investigated by assessing the general conditions, skin irritation score (edema and erythema), and histopathology. No active dissolution or hysteresis loop was observed in the corrosion study. None of the animals exhibited death, moribundity, impending death, severe pain, self-mutilation, or overgrooming. No edema was observed at injection sites. Only the positive control showed an erythematous reaction at 24, 48, and 72 h observations (p < 0.001). Porous NiTi showed a low in situ biological response for inflammation, neovascularization, and fibrosis in comparison to the control implant (p = 0.247, 0.005, and 0.011, respectively). Porous NiTi also demonstrated high pitting corrosion resistance while causing no acute hypersensitivity or acute systemic toxicity. The study concludes that porous NiTi implants were unlikely to cause local sensitization, acute systemic toxicity, or chronic inflammatory reactions in an animal model. Porous NiTi also exhibited osseointegration equivalent to Ti6AI4 V of known biocompatibility.
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Affiliation(s)
- Nor Wati Nur Atikah Mustafa
- Centre for Restorative Dentistry Studies, Faculty of Dentistry, Universiti Teknologi MARA (UiTM), Sungai Buloh Campus, Jalan Hospital, Sungai Buloh 47000, Malaysia
| | - Rohana Ahmad
- Centre for Restorative Dentistry Studies, Faculty of Dentistry, Universiti Teknologi MARA (UiTM), Sungai Buloh Campus, Jalan Hospital, Sungai Buloh 47000, Malaysia
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA, Puncak Alam Campus, Bandar Puncak Alam, Selangor 42300, Malaysia
| | - Muhammad Asif Ahmad Khushaini
- Department of Applied Physics, Faculty of Science & Technology, National University of Malaysia, Bangi, Selangor 43600, Malaysia
| | - Nur Hafizah Kamar Affendi
- Centre for Restorative Dentistry Studies, Faculty of Dentistry, Universiti Teknologi MARA (UiTM), Sungai Buloh Campus, Jalan Hospital, Sungai Buloh 47000, Malaysia
| | - Siti Mariam Ab Ghani
- Centre for Restorative Dentistry Studies, Faculty of Dentistry, Universiti Teknologi MARA (UiTM), Sungai Buloh Campus, Jalan Hospital, Sungai Buloh 47000, Malaysia
| | - Su Keng Tan
- Centre for Oral & Maxillofacial Surgery Studies, Faculty of Dentistry, Universiti Teknologi MARA (UiTM), Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor 47000, Malaysia
| | - Muhammad Hussain Ismail
- Smart Manufacturing Research Institute (SMRI), College of Engineering, Universiti Teknologi MARA, Shah Alam, Selangor 40450, Malaysia
| | - Chui Ling Goo
- Centre for Restorative Dentistry Studies, Faculty of Dentistry, National University of Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Mohd Zulkifli Kassim
- Centre for Restorative Dentistry Studies, Faculty of Dentistry, National University of Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Tong Wah Lim
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, 34 Hospital Road, Sai Ying Pun, Hong Kong
| | - Lay Kek Teh
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA, Puncak Alam Campus, Bandar Puncak Alam, Selangor 42300, Malaysia
- Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, Bandar, Puncak Alam, Selangor 42300, Malaysia
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Zhang B, Feng J, Chen S, Liao R, Zhang C, Luo X, Yang Z, Xiao D, He K, Duan K. Cell response and bone ingrowth to 3D printed Ti6Al4V scaffolds with Mg-incorporating sol-gel Ta 2O 5 coating. RSC Adv 2023; 13:33053-33060. [PMID: 37954425 PMCID: PMC10632765 DOI: 10.1039/d3ra05814j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/03/2023] [Indexed: 11/14/2023] Open
Abstract
In recent years, additive manufacturing techniques have been used to fabricate 3D titanium (Ti)-based scaffolds for production of desirable complex shapes. However, insufficient osteointegration of porous Ti-based scaffolds can elicit long-term complications (e.g., aseptic loosening) and need further revision surgery. In this study, a magnesium (Mg)-incorporating tantalum (Ta) coating was deposited on a 3D Ti6Al4V scaffold using a sol-gel method for enhancing its osteogenic properties. To evaluate the biofunction of this surface, bone mesenchymal stem cells and rabbit femoral condyle were used to assess the cell response and bone ingrowth, respectively. Ta2O5 coatings and Mg-incorporating Ta2O5 coatings were both homogeneously deposited on porous scaffolds. In vitro studies revealed that both coatings exhibit enhanced cell proliferation, ALP activity, osteogenic gene expression and mineralization compared with the uncoated Ti6Al4V scaffold. Especially for Mg-incorporating Ta2O5 coatings, great improvements were observed. In vivo studies, including radiographic examination, fluorochrome labeling and histological evaluation also followed similar trends. Also, bone ingrowth to scaffolds with Mg-incorporating Ta2O5 coatings exhibited the most significant increase compared with uncoated and Ta2O5 coated scaffolds. All the above results indicate that Mg-doped Ta2O5 coatings are an effective tool for facilitating osteointegration of conventional porous Ti6Al4V scaffolds.
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Affiliation(s)
- Bo Zhang
- Research Institute of Tissue Engineering and Stem Cells, Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College Nanchong Sichuan 637000 China
| | - Jun Feng
- Research Institute of Tissue Engineering and Stem Cells, Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College Nanchong Sichuan 637000 China
| | - Shuo Chen
- Research Institute of Tissue Engineering and Stem Cells, Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College Nanchong Sichuan 637000 China
| | - Ruohan Liao
- Research Institute of Tissue Engineering and Stem Cells, Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College Nanchong Sichuan 637000 China
| | - Chengdong Zhang
- Research Institute of Tissue Engineering and Stem Cells, Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College Nanchong Sichuan 637000 China
- Key Laboratory of Advanced Technologies of Materials (MOE), School of Materials Science and Engineering, Southwest Jiaotong University Chengdu Sichuan 610031 China
| | - Xuwei Luo
- Research Institute of Tissue Engineering and Stem Cells, Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College Nanchong Sichuan 637000 China
| | - Zelong Yang
- Research Institute of Tissue Engineering and Stem Cells, Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College Nanchong Sichuan 637000 China
| | - Dongqin Xiao
- Research Institute of Tissue Engineering and Stem Cells, Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College Nanchong Sichuan 637000 China
| | - Kui He
- Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Orthopaedics, Affiliated Hospital of Southwest Medical University Luzhou Sichuan 646000 China
| | - Ke Duan
- Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Orthopaedics, Affiliated Hospital of Southwest Medical University Luzhou Sichuan 646000 China
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Nalbantoğlu AM, Eren K, Yanik D, Toker H, Tuncer E. Biocompatibility of fiber-reinforced composite (FRC) and woven-coated FRC: an in vivo study. Clin Oral Investig 2023; 27:1023-1033. [PMID: 35939213 DOI: 10.1007/s00784-022-04659-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 07/30/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To investigate biocompatibility and bone contact area of FRC and woven-coated FRC (FRC-C) in rats. MATERIALS AND METHODS Sixty rats were allocated to three groups: FRC (n=20), FRC-C (n=20), and control group (n=20). Subgroups were determined as 4th (n=10) and 12th weeks (n=10). The specimens were placed in the femur of rats. In the control group, the bone defects were left empty and sutured. Four and 12 weeks after implantation, the rats were sacrificed. Histopathological examinations were performed in a semi-quantitative manner. Twenty rats (n=20) were used for scanning electron microscopy (SEM) examination. Bone contact surfaces were calculated in SEM analysis. A chi-square test was performed to analyze the data. RESULTS No statistical difference was detected between the 4th and 12th weeks in the quality of bone union. Quality of bone union was lower in FRC compared to the control group in the 4th week (p=0.012) and the 12th week (p=0.017). The periosteal reaction at the 12th week was lower in FRC than in the control group (p=0.021). Bone contact of FRC and FRC-C was 85.5% and 86.3%, respectively. CONCLUSIONS FRC and FRC-C were biocompatible and showed no inflammation. The woven coating did not increase the quality of bone union and bone contact area, while not reducing biocompatibility. CLINICAL RELEVANCE The biocompatibility and good bone response of the woven glass fiber net were demonstrated to have the potential as a scaffold for the augmentation of alveolar bone deficiencies and the reconstruction of maxillofacial defects.
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Affiliation(s)
- Ahmet Mert Nalbantoğlu
- Department of Periodontology, Faculty of Dentistry, Antalya Bilim University, Antalya, Turkey
| | - Kaya Eren
- Department of Periodontology, Faculty of Dentistry, Gazi University, Ankara, Turkey
| | - Deniz Yanik
- Department of Endodontics, Faculty of Dentistry, Antalya Bilim University, Antalya, Turkey.
| | - Hülya Toker
- Department of Periodontology, Faculty of Dentistry, Sağlik Bilimleri University, Ankara, Turkey
| | - Ersin Tuncer
- Department of Pathology, Faculty of Medicine, Cumhuriyet University, Sivas, Turkey
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Li M, Wang M, Wei L, Werner A, Liu Y. Biomimetic calcium phosphate coating on medical grade stainless steel improves surface properties and serves as a drug carrier for orthodontic applications. Dent Mater 2023; 39:152-161. [PMID: 36610898 DOI: 10.1016/j.dental.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 12/05/2022] [Accepted: 12/24/2022] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Recently, stainless steel (SSL) miniscrew implants have been used in orthodontic clinics as temporary anchorage devices. Although they have excellent physical properties, their biocompatibility is relatively poor. Previously, our group developed a two-phase biomimetic calcium phosphate (BioCaP) coating that can significantly improve the biocompatibility of medical devices. This study aimed to improve the biocompatibility of SSL by coating SSL surface with the BioCaP coating. METHODS Titanium (Ti) discs and SSL discs (diameter: 5 mm, thickness: 1 mm) were used in this study. To form an amorphous layer, the Ti discs were immersed in a biomimetic modified Tyrode solution (BMT) for 24 h. The SSL discs were immersed in the same solution for 0 h, 12 h, 24 h, 36 h and 48 h. To form a crystalline layer, the discs were then immersed in a supersaturated calcium phosphate solution (CPS) for 48 h. The surface properties of the BioCaP coatings were analysed. In addition, bovine serum albumin (BSA) was incorporated into the crystalline layer during biomimetic mineralisation as a model protein. RESULTS The morphology, chemical composition and drug loading capacity of the BioCaP coating on smooth SSL were confirmed. This coating improved roughness and wettability of SSL surface. In vitro, with the extension of BMT coating period, the cell seeding efficiency, cell spreading area and cell proliferation on the BioCaP coating were increased. SIGNIFICANCE These in vitro results show that the BioCaP coating can improve surface properties of smooth medical grade SSL and serve as a carrier system for bioactive agents.
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Affiliation(s)
- Menghong Li
- Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Amsterdam, the Netherlands
| | - Mingjie Wang
- Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Amsterdam, the Netherlands
| | - Lingfei Wei
- Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Amsterdam, the Netherlands; Department of Oral Implantology, Yantai Stomatological Hospital, Yantai, China; Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, China
| | - Arie Werner
- Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Amsterdam, the Netherlands
| | - Yuelian Liu
- Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Amsterdam, the Netherlands.
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