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Gasperini FM, Fernandes GVO, Mitri FF, Calasans-Maia MD, Mavropoulos E, Malta Rossi A, Granjeiro JM. Histomorphometric evaluation, SEM, and synchrotron analysis of the biological response of biodegradable and ceramic hydroxyapatite-based grafts: from the synthesis to the bed application. Biomed Mater 2023; 18:065023. [PMID: 37844570 DOI: 10.1088/1748-605x/ad0397] [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: 05/03/2023] [Accepted: 10/16/2023] [Indexed: 10/18/2023]
Abstract
This study aimed to analyze the physicochemical and histological properties of nanostructured hydroxyapatite and alginate composites produced at different temperatures with and without sintering and implanted in rabbit tibiae. Hydroxyapatite-alginate (HA) microspheres (425-600 µm) produced at 90 and 5 °C without (HA90 and HA5) or with sintering at 1000 °C (HA90S and HA5S) were characterized and applied to evaluate thein vitrodegradation; also were implanted in bone defects on rabbit's tibiae (n= 12). The animals were randomly divided into five groups (blood clot, HA90S, HA5S, HA90, and HA5) and euthanized after 7 and 28 d. X-ray diffraction and Fourier-transform infrared analysis of the non-sintered biomaterials showed a lower crystallinity than sintered materials, being more degradablein vitroandin vivo. However, the sinterization of HA5 led to the apatite phase's decomposition into tricalcium phosphate. Histomorphometric analysis showed the highest (p< 0.01) bone density in the blood clot group, similar bone levels among HA90S, HA90, and HA5, and significantly less bone in the HA5S. HA90 and HA5 groups presented higher degradation and homogeneous distribution of the new bone formation onto the surface of biomaterial fragments, compared to HA90S, presenting bone only around intact microspheres (p< 0.01). The elemental distribution (scanning electron microscope and energy dispersive spectroscopy andμXRF-SR analysis) of Ca, P, and Zn in the newly formed bone is similar to the cortical bone, indicating bone maturity at 28 d. The synthesized biomaterials are biocompatible and osteoconductive. The heat treatment directly influenced the material's behavior, where non-sintered HA90 and HA5 showed higher degradation, allowing a better distribution of the new bone onto the surface of the biomaterial fragments compared to HA90S presenting the same level of new bone, but only on the surface of the intact microspheres, potentially reducing the bone-biomaterial interface.
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Affiliation(s)
- Flávio Marcos Gasperini
- Prosthetic Dentistry Department, Dentistry School, Iguaçu University Nova Iguaçu, RJ, Brazil
| | | | - Fabio Franceschini Mitri
- Department of Morphology, Biomedical Sciences Institute, Federal Uberlandia University, Uberlandia, MG, Brazil
| | - Mônica Diuana Calasans-Maia
- Clinical Research Laboratory in Dentistry, Dentistry School, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Elena Mavropoulos
- Biomaterials Laboratory-LABIOMAT, Brazilian Center of Physics Research, Rio de Janeiro, RJ, Brazil
| | - Alexandre Malta Rossi
- Biomaterials Laboratory-LABIOMAT, Brazilian Center of Physics Research, Rio de Janeiro, RJ, Brazil
| | - José Mauro Granjeiro
- Clinical Research Laboratory in Dentistry, Dentistry School, Fluminense Federal University, Niteroi, RJ, Brazil
- Laboratory of Biology, Coordination of Biology, National Institute of Metrology, Quality, and Technology, Duque de Caxias, RJ, Brazil
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Kloss FR, Kämmerer PW, Kloss-Brandstätter A. First Clinical Case Report of a Xenograft-Allograft Combination for Alveolar Ridge Augmentation Using a Bovine Bone Substitute Material with Hyaluronate (Cerabone ® Plus) Combined with Allogeneic Bone Granules (Maxgraft ®). J Clin Med 2023; 12:6214. [PMID: 37834860 PMCID: PMC10573600 DOI: 10.3390/jcm12196214] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/14/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND A patient had lost the first left maxillary incisor in the esthetic zone. METHODS The defect in the alveolar ridge was reconstructed for an implant-supported restoration using a new xenogeneic bone substitute containing hyaluronate, which was used in combination with allogeneic bone granules. RESULTS After three years of follow-up, the dental implant was stable and showed no signs of infection. CONCLUSIONS This is the first case report with a long-term follow-up time of three years of a successful clinical application of a xenograft-allograft combination (cerabone® plus combined with maxgraft®) for alveolar ridge augmentation before dental implantation. Cerabone® plus offers volume stability, provides reliable and efficient structural support of the oral soft tissues in the augmented region (particularly crucial in the aesthetic zone), and preserves the alveolar ridge shape.
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Affiliation(s)
- Frank R. Kloss
- Private Clinic for Oral- and Maxillofacial Surgery, Kärntnerstraße 62, 9900 Lienz, Austria;
| | - Peer W. Kämmerer
- Department of Oral and Maxillofacial Surgery, University Medical Center Mainz, Augustusplatz 2, 55131 Mainz, Germany;
| | - Anita Kloss-Brandstätter
- Department of Engineering & IT, Carinthia University of Applied Sciences, Europastraße 4, 9524 Villach, Austria
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Trzaskowska M, Vivcharenko V, Przekora A. The Impact of Hydroxyapatite Sintering Temperature on Its Microstructural, Mechanical, and Biological Properties. Int J Mol Sci 2023; 24:ijms24065083. [PMID: 36982158 PMCID: PMC10049015 DOI: 10.3390/ijms24065083] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/22/2023] [Accepted: 03/05/2023] [Indexed: 03/09/2023] Open
Abstract
Hydroxyapatite (HA), the principal mineral of bone tissue, can be fabricated as an artificial calcium phosphate (CaP) ceramic and potentially used as bioceramic material for bone defect treatment. Nevertheless, the production method (including the applied sintering temperature) of synthetic hydroxyapatite directly affects its basic properties, such as its microstructure, mechanical parameters, bioabsorbability, and osteoconductivity, and in turn influences its biomedical potential as an implantable biomaterial. The wide application of HA in regenerative medicine makes it necessary to explain the validity of the selection of the sintering temperature. The main emphasis of this article is on the description and summarization of the key features of HA depending on the applied sintering temperature during the synthesis process. The review is mainly focused on the dependence between the HA sintering temperature and its microstructural features, mechanical properties, biodegradability/bioabsorbability, bioactivity, and biocompatibility.
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Faverani LP, Astaneh SH, da Costa MG, Delanora LA, Lima-Neto TJ, Barbosa S, Ariani MD, Takoudis C, Sukotjo C. Collagen Membranes Functionalized with 150 Cycles of Atomic Layer Deposited Titania Improve Osteopromotive Property in Critical-Size Defects Created on Rat Calvaria. J Funct Biomater 2023; 14:jfb14030120. [PMID: 36976044 PMCID: PMC10057577 DOI: 10.3390/jfb14030120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
The membranes used in bone reconstructions have been the object of investigation in the field of tissue engineering, seeking to improve their mechanical strength and add other properties, mainly the osteopromotive. This study aimed to evaluate the functionalization of collagen membranes, with atomic layer deposition of TiO2 on the bone repair of critical defects in rat calvaria and subcutaneous biocompatibility. A total of 39 male rats were randomized into four groups: blood clot (BC), collagen membrane (COL), COL 150—150 cycles of titania, and COL 600—600 cycles of titania. The defects were created in each calvaria (5 mm in diameter) and covered according to each group; the animals were euthanized at 7, 14, and 28 days. The collected samples were assessed by histometric (newly bone formed, soft tissue area, membrane area, and residual linear defect) and histologic (inflammatory cells and blood cells count) analysis. All data were subjected to statistical analysis (p < 0.05). The COL150 group showed statistically significant differences compared to the other groups, mainly in the analysis of residual linear defects (1.5 ± 0.5 × 106 pixels/µm2 for COL 150, and around 1 ± 0.5 × 106 pixels/µm2 for the other groups) and newly formed bone (1500 ± 1200 pixels/µm for COL 150, and around 4000 pixels/µm for the others) (p < 0.05), demonstrating a better biological behavior in the chronology of defects repair. It is concluded that the collagen membrane functionalized by TiO2 over 150 cycles showed better bioactive potential in treating critical size defects in the rats’ calvaria.
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Affiliation(s)
- Leonardo P. Faverani
- Department of Diagnosis and Surgery, School of Dentistry, Sao Paulo State University (UNESP), Aracatuba 16015-050, Brazil
| | - Sarah Hashemi Astaneh
- Department of Chemical Engineering, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Monique Gonçalves da Costa
- Department of Diagnosis and Surgery, School of Dentistry, Sao Paulo State University (UNESP), Aracatuba 16015-050, Brazil
| | - Leonardo A. Delanora
- Department of Diagnosis and Surgery, School of Dentistry, Sao Paulo State University (UNESP), Aracatuba 16015-050, Brazil
| | - Tiburtino J. Lima-Neto
- Department of Diagnosis and Surgery, School of Dentistry, Sao Paulo State University (UNESP), Aracatuba 16015-050, Brazil
| | - Stéfany Barbosa
- Department of Diagnosis and Surgery, School of Dentistry, Sao Paulo State University (UNESP), Aracatuba 16015-050, Brazil
| | | | - Christos Takoudis
- Department of Chemical Engineering, University of Illinois Chicago, Chicago, IL 60612, USA
- Biomedical Engineering Department, University of Illinois Chicago, Chicago, IL 60607, USA
| | - Cortino Sukotjo
- Faculty of Dental Medicine, Universitas Airlangga, Surabaya 60132, Indonesia
- Department of Restorative Dentistry, University of Illinois Chicago, Chicago, IL 60607, USA
- Correspondence:
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