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Yin TJ, Steyl SK, Howard J, Carlson K, Jeyapalina S, Naleway SE. Freeze casting of hydroxyapatite-titania composites for bone substitutes. J Biomed Mater Res A 2024; 112:473-483. [PMID: 37962005 DOI: 10.1002/jbm.a.37645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/27/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023]
Abstract
Hydroxyapatite (HA) is commonly used as a bone substitute material, but it lacks mechanical strength when compared to native bone tissues. To improve the efficacy of HA as a bone substitute by improving the mechanical strength and cell growth attributes, porous composite scaffolds of HA and titania (HA-TiO2 ) were fabricated through a freeze-casting process. Three different compositions by weight percent, 25-75 HA-TiO2 , 50-50 HA-TiO2 , and 75-25 HA-TiO2 , were custom-made for testing. After sintering at 1250°C, these composite scaffolds exhibited improved mechanical properties compared to porous HA scaffolds. Substrate mixing was observed, which helped reduce crystal size and introduced new phases such as β-TCP and CaTiO3 , which also led to improved mechanical properties. The composition of 50-50 HA-TiO2 had the highest ultimate compressive strength of 3.12 ± 0.36 MPa and elastic modulus 63.29 ± 28.75 MPa. Human osteoblast cell proliferation assay also increased on all three different compositions when compared to porous HA at 14 days. These results highlight the potential of freeze casting composites for the fabrication of bone substitutes, which provide enhanced mechanical strength and biocompatibility while maintaining porosity.
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Affiliation(s)
- Tony J Yin
- Department of Mechanical Engineering, University of Utah, Salt Lake City, Utah, USA
| | - Samantha K Steyl
- Division of Plastic Surgery, Department of Surgery, University of Utah School of Medicine, Salt Lake City, Utah, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
| | - Jerry Howard
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, Nevada, USA
| | - Krista Carlson
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, Nevada, USA
| | - Sujee Jeyapalina
- Division of Plastic Surgery, Department of Surgery, University of Utah School of Medicine, Salt Lake City, Utah, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
| | - Steven E Naleway
- Department of Mechanical Engineering, University of Utah, Salt Lake City, Utah, USA
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Zhou J, See CW, Sreenivasamurthy S, Zhu D. Customized Additive Manufacturing in Bone Scaffolds-The Gateway to Precise Bone Defect Treatment. RESEARCH (WASHINGTON, D.C.) 2023; 6:0239. [PMID: 37818034 PMCID: PMC10561823 DOI: 10.34133/research.0239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 09/07/2023] [Indexed: 10/12/2023]
Abstract
In the advancing landscape of technology and novel material development, additive manufacturing (AM) is steadily making strides within the biomedical sector. Moving away from traditional, one-size-fits-all implant solutions, the advent of AM technology allows for patient-specific scaffolds that could improve integration and enhance wound healing. These scaffolds, meticulously designed with a myriad of geometries, mechanical properties, and biological responses, are made possible through the vast selection of materials and fabrication methods at our disposal. Recognizing the importance of precision in the treatment of bone defects, which display variability from macroscopic to microscopic scales in each case, a tailored treatment strategy is required. A patient-specific AM bone scaffold perfectly addresses this necessity. This review elucidates the pivotal role that customized AM bone scaffolds play in bone defect treatment, while offering comprehensive guidelines for their customization. This includes aspects such as bone defect imaging, material selection, topography design, and fabrication methodology. Additionally, we propose a cooperative model involving the patient, clinician, and engineer, thereby underscoring the interdisciplinary approach necessary for the effective design and clinical application of these customized AM bone scaffolds. This collaboration promises to usher in a new era of bioactive medical materials, responsive to individualized needs and capable of pushing boundaries in personalized medicine beyond those set by traditional medical materials.
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Affiliation(s)
- Juncen Zhou
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
| | - Carmine Wang See
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
| | - Sai Sreenivasamurthy
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
| | - Donghui Zhu
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
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Zhao L, Hu J, Gao L, Wang J, Ma X, Liu Y, Ao Y, Yan F, Liu L. Improvement of Interfacial Properties and Bioactivity of CF/PEEK Composites by Rapid Biomineralization of Hydroxyapatite. ACS Biomater Sci Eng 2022. [DOI: 10.1021/acsbiomaterials.2c00881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Lianshuang Zhao
- Jilin Province Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun130012, China
| | - Jiaoli Hu
- Jilin Province Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun130012, China
| | - Longxuan Gao
- Jilin Province Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun130012, China
| | - Junming Wang
- Jilin Province Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun130012, China
| | - Xiaoyue Ma
- Jilin Province Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun130012, China
| | - Yu Liu
- Jilin Province Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun130012, China
| | - Yuhui Ao
- Jilin Province Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun130012, China
| | - Fei Yan
- College of Chemical and Material Engineering, Quzhou University, Quzhou324000, China
| | - Liu Liu
- Jilin Province Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun130012, China
- Institute of Zhejiang University-Quzhou, Quzhou324000, China
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou310027, China
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Szczęsny G, Kopec M, Politis DJ, Kowalewski ZL, Łazarski A, Szolc T. A Review on Biomaterials for Orthopaedic Surgery and Traumatology: From Past to Present. MATERIALS 2022; 15:ma15103622. [PMID: 35629649 PMCID: PMC9145924 DOI: 10.3390/ma15103622] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/16/2022] [Accepted: 05/18/2022] [Indexed: 02/04/2023]
Abstract
The principal features essential for the success of an orthopaedic implant are its shape, dimensional accuracy, and adequate mechanical properties. Unlike other manufactured products, chemical stability and toxicity are of increased importance due to the need for biocompatibility over an implants life which could span several years. Thus, the combination of mechanical and biological properties determines the clinical usefulness of biomaterials in orthopaedic and musculoskeletal trauma surgery. Materials commonly used for these applications include stainless steel, cobalt-chromium and titanium alloys, ceramics, polyethylene, and poly(methyl methacrylate) (PMMA) bone cement. This study reviews the properties of commonly used materials and the advantages and disadvantages of each, with special emphasis on the sensitivity, toxicity, irritancy, and possible mutagenic and teratogenic capabilities. In addition, the production and final finishing processes of implants are discussed. Finally, potential directions for future implant development are discussed, with an emphasis on developing advanced personalised implants, according to a patient’s stature and physical requirements.
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Affiliation(s)
- Grzegorz Szczęsny
- Department of Orthopaedic Surgery and Traumatology, Medical University, 4 Lindleya Str., 02-005 Warsaw, Poland; (G.S.); (A.Ł.)
| | - Mateusz Kopec
- Institute of Fundamental Technological Research, Polish Academy of Sciences, 5B Pawińskiego Str., 02-106 Warsaw, Poland; (Z.L.K.); (T.S.)
- Correspondence:
| | - Denis J. Politis
- Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia 20537, Cyprus;
| | - Zbigniew L. Kowalewski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, 5B Pawińskiego Str., 02-106 Warsaw, Poland; (Z.L.K.); (T.S.)
| | - Adam Łazarski
- Department of Orthopaedic Surgery and Traumatology, Medical University, 4 Lindleya Str., 02-005 Warsaw, Poland; (G.S.); (A.Ł.)
| | - Tomasz Szolc
- Institute of Fundamental Technological Research, Polish Academy of Sciences, 5B Pawińskiego Str., 02-106 Warsaw, Poland; (Z.L.K.); (T.S.)
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Endosseous Dental Implant Materials and Clinical Outcomes of Different Alloys: A Systematic Review. MATERIALS 2022; 15:ma15051979. [PMID: 35269211 PMCID: PMC8911578 DOI: 10.3390/ma15051979] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/01/2022] [Accepted: 03/04/2022] [Indexed: 12/17/2022]
Abstract
In recent years, implantology has made significant progress, as it has now become a safe and predictable practice. The development of new geometries, primary and secondary, of new surfaces and alloys, has made this possible. The purpose of this review is to analyze the different alloys present on the market, such as that in zirconia, and evaluate their clinical differences with those most commonly used, such as those in grade IV titanium. The review, conducted on major scientific databases such as Scopus, PubMed, Web of Science and MDPI yielded a startling number of 305 results. After the application of the filters and the evaluation of the results in the review, only 10 Randomized Clinical Trials (RCTs) were included. Multiple outcomes were considered, such as Marginal Bone Level (MBL), Bleeding on Probing (BoP), Survival Rate, Success Rate and parameters related to aesthetic and prosthetic factors. There are currently no statistically significant differences between the use of zirconia implants and titanium implants, neither for fixed prosthetic restorations nor for overdenture restorations. Only the cases reported complain about the rigidity and, therefore, the possibility of fracture of the zirconium. Certainly the continuous improvement in these materials will ensure that they could be used safely while maintaining their high aesthetic performance.
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Gautam S, Bhatnagar D, Bansal D, Batra H, Goyal N. Recent advancements in nanomaterials for biomedical implants. BIOMEDICAL ENGINEERING ADVANCES 2022. [DOI: 10.1016/j.bea.2022.100029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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