Relevant bibliographies by topics / BIOACTIVE GLASS MATERIALS

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
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Academic literature on the topic 'BIOACTIVE GLASS MATERIALS'

Author: Grafiati
Published: 11 September 2023

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Journal articles on the topic "BIOACTIVE GLASS MATERIALS"

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Brook, I. M., and P. V. Hatton. "Glass-ionomers: bioactive implant materials." Biomaterials 19, no. 6 (April 1998): 565–71. http://dx.doi.org/10.1016/s0142-9612(98)00138-0.

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Obata, Akiko, Sungho Lee, and Toshihiro Kasuga. "Bioactive glass materials for tissue regeneration." Journal of the Ceramic Society of Japan 130, no. 8 (August 1, 2022): 595–604. http://dx.doi.org/10.2109/jcersj2.22054.

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Burdușel, Alexandra-Cristina. "Bioactive composites for bone regeneration." Biomedical Engineering International 1, no. 1 (September 30, 2019): 9–15. http://dx.doi.org/10.33263/biomed11.009015.

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Bone, the organ that separates vertebrates from other living beings, is a complex tissue responsible of mobility, body stability, organ protection, and metabolic activities such as ion storage. Ceramic materials are appropriate candidates to be used in the fabrication of scaffolds for bone healing. Biocompatible ceramic materials may also be created to deliver biologically active substances aimed at maintaining, repairing, restoring, or boosting the function of tissues and organs in the organism. Glass-ceramic materials furnish flexible properties appropriate for some particular applications. Because of the controlled devitrification and the evolution of variable dimensions of crystalline and glassy phases, glass-ceramics considerably overcome the lacunae found in glasses. A wide range of bioactive glass compositions had been developed since the early 1970s to make them appropriate for many clinical applications. Many bioactive ceramic composite materials attach to living bone through an apatite layer, which is developed on their surfaces in the living body. This paper reviews the most used bioactive ceramics for bone tissue regeneration, with specific accentuation on the material characteristics.
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Chen, Chuan Zhong, Xiang Guo Meng, Hui Jun Yu, Ting He, Han Yang, Dian Gang Wang, and Shi Gui Zhao. "Research Progress in Bioactive Glasses for Implant Materials." Key Engineering Materials 591 (November 2013): 108–12. http://dx.doi.org/10.4028/www.scientific.net/kem.591.108.

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With the constant development of medical technology, biological materials become more and more important in surgical repair. Bioactive glass and glass ceramic, because of the good bioactivity and biocompatibility, are considered to be the most ideal material for bone repair and replacement. Thus in this paper the recent research progress in bioactive glasses and glass ceramics are summarized. The characteristics of component, structure and property of several kinds of bioactive glasses and glass ceramics are analyzed, the existent problems and some different solutions are also discussed, and their development foreground in surgical repair application is further forecast.
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Vitale-Brovarone, C., S. Di Nunzio, O. Bretcanu, and E. Verné. "Macroporous glass-ceramic materials with bioactive properties." Journal of Materials Science: Materials in Medicine 15, no. 3 (March 2004): 209–17. http://dx.doi.org/10.1023/b:jmsm.0000015480.49061.e1.

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Gonzalo-Juan, Isabel, Fangtong Xie, Malin Becker, Dilshat U. Tulyaganov, Emanuel Ionescu, Stefan Lauterbach, Francesca De Angelis Rigotti, Andreas Fischer, and Ralf Riedel. "Synthesis of Silver Modified Bioactive Glassy Materials with Antibacterial Properties via Facile and Low-Temperature Route." Materials 13, no. 22 (November 13, 2020): 5115. http://dx.doi.org/10.3390/ma13225115.

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There is an increasing clinical need to develop novel biomaterials that combine regenerative and biocidal properties. In this work, we present the preparation of silver/silica-based glassy bioactive (ABG) compositions via a facile, fast (20 h), and low temperature (80 °C) approach and their characterization. The fabrication process included the synthesis of the bioactive glass (BG) particles followed by the surface modification of the bioactive glass with silver nanoparticles. The microstructural features of ABG samples before and after exposure to simulated body fluid (SBF), as well as their ion release behavior during SBF test were evaluated using infrared spectrometry (FTIR), ultraviolet-visible (UV-Vis) spectroscopy, X-ray diffraction (XRD), electron microscopies (TEM and SEM) and optical emission spectroscopy (OES). The antibacterial properties of the experimental compositions were tested against Escherichia coli (E. coli). The results indicated that the prepared ABG materials possess antibacterial activity against E. coli, which is directly correlated with the glass surface modification.
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Dieckmann, Phoebe, Dirk Mohn, Matthias Zehnder, Thomas Attin, and Tobias T. Tauböck. "Light Transmittance and Polymerization of Bulk-Fill Composite Materials Doped with Bioactive Micro-Fillers." Materials 12, no. 24 (December 7, 2019): 4087. http://dx.doi.org/10.3390/ma12244087.

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This study investigated the effect of bioactive micro-fillers on the light transmittance and polymerization of three commercially available bulk-fill resin composites. These were mixed with 20 wt% bioactive glass 45S5, Portland cement, inert dental barium glass, or nothing (controls). Composites were photo-activated and light transmittance through 4 mm thick specimens was measured in real time. Moreover, degree of conversion (DC) and Knoop hardness (KHN) were assessed. Light transmittance of all bulk-fill composites significantly decreased (p < 0.05) with addition of 20 wt% bioactive glass 45S5 but not when inert barium glass was added. For bulk-fill composites modified with Portland cement, light irradiance dropped below the detection limit at 4 mm depth. The DC at the top surface of the specimens was not affected by addition of bioactive or inert micro-fillers. The bottom-to-top ratio of both DC and KHN surpassed 80% for bulk-fill composites modified with 20 wt% bioactive or inert glass fillers but fell below 20% when the composites were modified with Portland cement. In contrast to Portland cement, the addition of 20 wt% bioactive glass maintains adequate polymerization of bulk-fill composites placed at 4 mm thickness, despite a decrease in light transmittance compared to the unmodified materials.
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Sindut, R., Katarzyna Cholewa-Kowalska, and Maria Łączka. "Bioactive Glass-Ceramic Porous Sinters." Advances in Science and Technology 49 (October 2006): 103–8. http://dx.doi.org/10.4028/www.scientific.net/ast.49.103.

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Bioglasses and bioactive glass-ceramics have found increasingly wide application in medicine and dentistry. Using sol-gel method, is possible to obtain glass and glass-ceramic bioactive materials of new generation, characterized the higher bioactivity than melted bioglasses. These materials can be produced in various final forms, as powders, thin layers on different base and porous sinters. Production of porous bioactive sinters from gel-derived powders is a new problem and the parameters controlling this process are not recognized yet. The aim of the study was to obtain porous bioactive sinters from gel-derived powders of the SiO2-CaO-P2O5 system of four various chemical compositions (S2, II, I, A2) and the characterization of properties of these new materials. The starting powders differ from each other in the content of the basic components, at the molar ratio of CaO to SiO2 equals 0.2-1.35. To obtain the porous sinters a method of burning additions and deposition of the casting slip on the polymeric sponge was used. Sintering was realized in several stages, at the maximal temperature 1200oC. By selecting appropriate conditions of sintering, a durable material of high open porosity up to 77 % was obtained. Its porous structure was characterized by a prevailing number of small micropores of similar dimensions, uniformly distributed in the material. The phase composition of obtained sinters was determined by the X-ray diffraction method. All sinters represented glass-ceramic materials with apatite, cristoballite and calcium silicates as a main crystalline phases. In order to preliminary determination bioactivity of obtained sinters, test in vitro in simulated body fluid SBF was conducted. It was found that hydroxyapatite formation on the sinter surface occurs only in the case of biomaterials of highest calcium concentration.
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Maximov, Maxim, Oana-Cristina Maximov, Luminita Craciun, Denisa Ficai, Anton Ficai, and Ecaterina Andronescu. "Bioactive Glass—An Extensive Study of the Preparation and Coating Methods." Coatings 11, no. 11 (November 13, 2021): 1386. http://dx.doi.org/10.3390/coatings11111386.

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Diseases or complications that are caused by bone tissue damage affect millions of patients every year. Orthopedic and dental implants have become important treatment options for replacing and repairing missing or damaged parts of bones and teeth. In order to use a material in the manufacture of implants, the material must meet several requirements, such as mechanical stability, elasticity, biocompatibility, hydrophilicity, corrosion resistance, and non-toxicity. In the 1970s, a biocompatible glassy material called bioactive glass was discovered. At a later time, several glass materials with similar properties were developed. This material has a big potential to be used in formulating medical devices, but its fragility is an important disadvantage. The use of bioactive glasses in the form of coatings on metal substrates allows the combination of the mechanical hardness of the metal and the biocompatibility of the bioactive glass. In this review, an extensive study of the literature was conducted regarding the preparation methods of bioactive glass and the different techniques of coating on various substrates, such as stainless steel, titanium, and their alloys. Furthermore, the main doping agents that can be used to impart special properties to the bioactive glass coatings are described.
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Shaikh, Muhammad Saad, Muhammad Amber Fareed, and Muhammad Sohail Zafar. "Bioactive Glass Applications in Different Periodontal Lesions: A Narrative Review." Coatings 13, no. 4 (March 31, 2023): 716. http://dx.doi.org/10.3390/coatings13040716.

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Tissue engineering in the orofacial region with bioactive components by the activation of immune complexes or other proteins is the current focus of biomaterials research. Consequently, natural ground materials and tissue components are being created. Bioactive glass is one of the most promising biomaterials and has bioactive properties making it suited for a range of different clinical dental applications, including the regeneration of hard tissues in the craniofacial region. This narrative review provides a summary of the favorable properties and recent applications of bioactive glass materials for the management of periodontal lesions. Bioactive glass mimics natural calcified tissues in terms of composition and has a bioactive role in bone regeneration. The present review concluded that bioactive glass materials have a promising potential for various periodontal applications including the repair of infrabony defects, gingival recession, furcation defects, and guided tissue regeneration. However, further in vivo studies and clinical trials are warranted to advance and validate the potential of bioactive glass for periodontal applications and translate its usage in dental clinics for periodontology.
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Dissertations / Theses on the topic "BIOACTIVE GLASS MATERIALS"

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Eriksson, Alexander. "Bioactivity testing of dental materials." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-382042.

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Ever since Hench et al. first discovered bioactive glass in 1969, extensive interest was created because of the materials ability to chemically bond with living tissue. In this project the bioactivity of three different compositions of the bioactive glass Na2O-CaO-SiO2 have been studied. The compositions of the different glasses were A (25% Na2O, 25% CaO and 50% SiO2), B (22.5% Na2O, 22.5% CaO and 55% SiO2) and C (20% Na2O, 20% CaO and 60% SiO2). Their bioactivity was tested through biomimetic evaluation, in this case by soaking samples of each glass in simulated body fluid (SBF) and phosphate buffered saline (PBS). After soaking, the samples were analyzed with Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray Spectroscopy (EDS), Grazing Incidence X-ray Diffraction (GIXRD) and Fourier-Transform Infrared Spectroscopy (FTIR) to analyze if hydroxyapatite formed on the glass surfaces. Both the A and B glass showed bioactivity in SBF and PBS, while the C glass did not. Further work is necessary to determine which of the A and B glass has the highest apatite formability and the reason why the C glass were not bioactive.
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Fu, Qiang. "Freeze casting of bioactive glass and ceramic scaffolds for bone tissue engineering." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Fu_09007dcc806b51af.pdf.

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Thesis (Ph. D.)--Missouri University of Science and Technology, 2009.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 7, 2010) Includes bibliographical references.
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Gwinner, Fernanda Pelógia Camargo [UNESP]. "Influência da adição de bioactive glass na liberação de íons do cimento de ionômero de vidro modificado por resina." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/105480.

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Made available in DSpace on 2014-06-11T19:35:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-06-18Bitstream added on 2014-06-13T20:25:44Z : No. of bitstreams: 1 gwinner_fpc_dr_sjc.pdf: 429388 bytes, checksum: 8f66379f177aa22a57995cbad67ae92f (MD5)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Esse estudo in vitro avaliou o efeito da adição de diferentes concentrações e composições de bioactive glass (BAG) ao cimento de ionômero de vidro modificado por resina (CIVMR) (Fuji II LC) na liberação de íons Ca2+ e PO4 3- após a imersão em simulador de fluido corpóreo (SFC), comparando com o grupo controle, sem BAG. Foram utilizados 3 tipos de BAG: BAG65 (65mol% SiO2, 31mol% CaO, 4mol% P2O5), BAG75 (75mol% SiO2, 21mol% CaO, 4mol% P2O5), BAG85 (85mol% SiO2, 11mol% CaO, 4mol% P2O5), adicionados ao CIVMR nas proporções de 25%, 35% e 50%. O BAG foi misturado ao pó do CIVMR e misturado com o líquido resinoso do CIVMR. O material foi colocado numa matriz de PVC (5mm x 1mm) e polimerizado, entre laminas de vidro, durante 40s. As amostras foram armazenadas a 37°C, com 100% de umidade, durante 24h. Após esse período as amostras foram trituradas por meio de gral e pistilo e peneiradas para a obtenção de partículas menores que 90μm. A liberação dos íons Ca2+ e PO4 3- foi mensurada após 15min, 30min, 1h, 3h, 6h e 24h de imersão de 20mg de cada material em SFC, com 5 réplicas para cada condição experimental. Para a análise estatística, foi utilizada a área sob a curva (PPM x tempo). Os dados foram submetidos à ANOVA e testes de Dunnet e Tukey (!= 0,05). Os grupos contendo BAG65 liberaram significantemente mais Ca2+ não havendo diferença entre as diferentes concentrações de BAG adicionado. Os grupos contendo BAG75 e BAG85 apresentaram resultados semelhantes, sendo que aqueles com 25% de BAG foram os que apresentaram menores valores de liberação de Ca2+ após 24h de imersão. Com relação a liberação de íons PO4 3-, os grupos contendo BAG65 apresentaram maiores valores de área...
Bioactive restorative materials may stimulate the repair of tooth structure though the release of remineralization-aiding components including calcium and phosphate. The objective of this study was to measure the ion release from resin-modified bioactive glass ionomer cement (RMBGIC) containing various formulations of bioactive glass (BAG). Three types of BAG: BAG65 (65 mol% SiO2, 31 mol% CaO, 4 mol% P2O5), BAG75 (75 mol% SiO2, 21 mol% CaO, 4 mol% P2O5), BAG85 (85 mol% SiO2, 11 mol% CaO, 4 mol% P2O5) were prepared using sol-gel method, grounded, micronized, and mixed with GIC powder (Fuji II LC, GC) in the following proportions: 1:1, 1:2, 1:3. The mixed-ionomer powders were combined with standard RMGIC liquid (Fuji II LC, GC) and light cured (40 s; Ultra Lume LED, 1100 mW/cm2) in cylindrical disk molds (5 mm x 2 mm). The cured RMBGIC specimens were grounded and sieved to 100 !m and immersed (20 mg; n=5) in 3 ml of simulated body fluid (SBF), at 37°C for 1/4, 1/2, 1, 3, 6 and 24 hours with continuous agitation. Following centrifugation and decanting, the [Ca+2] and [HxPO4 3-x] in the SBF were measured using ion specific electrode and visible spectroscopy, respectively. The amount of ion release were statistically analyzed using ANOVA/Tukey ($= 0.05). The [PO4 3-] in SBF immediately increased for all RMBGICs. The ion release slowly decreased after 1 h, yet remained higher than the original SBF over the 24 h period. The [PO4 3-] in SBF for the control GIC continuously decreased. Overall, BAG65 > BAG75= BAG85 > GIC for [PO4 3-]. The [Ca2+] release increase initially for all RMBGICs, remaining with higher values than thecontrol GIC. Resin modified glass ionomer cement... (Complete abstract click electronic access below)
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Sanders, Lawrence Matthew. "The Synthesis & Characterization of an Antibacterial Bioactive Glass Suitable as a Bone Void Substitute." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo15447109069978.

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Gwinner, Fernanda Pelógia Camargo. "Influência da adição de bioactive glass na liberação de íons do cimento de ionômero de vidro modificado por resina /." São José dos Campos : [s.n.], 2009. http://hdl.handle.net/11449/105480.

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Orientador: Alvaro Della Bona
Banca: Marco Antonio Bottino
Banca: Tarcisio José de Arruda Paes Júnior
Banca: Simonides Consani
Banca: Lourenço Correr Sobrinho
Resumo: Esse estudo in vitro avaliou o efeito da adição de diferentes concentrações e composições de bioactive glass (BAG) ao cimento de ionômero de vidro modificado por resina (CIVMR) (Fuji II LC) na liberação de íons Ca2+ e PO4 3- após a imersão em simulador de fluido corpóreo (SFC), comparando com o grupo controle, sem BAG. Foram utilizados 3 tipos de BAG: BAG65 (65mol% SiO2, 31mol% CaO, 4mol% P2O5), BAG75 (75mol% SiO2, 21mol% CaO, 4mol% P2O5), BAG85 (85mol% SiO2, 11mol% CaO, 4mol% P2O5), adicionados ao CIVMR nas proporções de 25%, 35% e 50%. O BAG foi misturado ao pó do CIVMR e misturado com o líquido resinoso do CIVMR. O material foi colocado numa matriz de PVC (5mm x 1mm) e polimerizado, entre laminas de vidro, durante 40s. As amostras foram armazenadas a 37°C, com 100% de umidade, durante 24h. Após esse período as amostras foram trituradas por meio de gral e pistilo e peneiradas para a obtenção de partículas menores que 90μm. A liberação dos íons Ca2+ e PO4 3- foi mensurada após 15min, 30min, 1h, 3h, 6h e 24h de imersão de 20mg de cada material em SFC, com 5 réplicas para cada condição experimental. Para a análise estatística, foi utilizada a área sob a curva (PPM x tempo). Os dados foram submetidos à ANOVA e testes de Dunnet e Tukey (!= 0,05). Os grupos contendo BAG65 liberaram significantemente mais Ca2+ não havendo diferença entre as diferentes concentrações de BAG adicionado. Os grupos contendo BAG75 e BAG85 apresentaram resultados semelhantes, sendo que aqueles com 25% de BAG foram os que apresentaram menores valores de liberação de Ca2+ após 24h de imersão. Com relação a liberação de íons PO4 3-, os grupos contendo BAG65 apresentaram maiores valores de área... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Bioactive restorative materials may stimulate the repair of tooth structure though the release of remineralization-aiding components including calcium and phosphate. The objective of this study was to measure the ion release from resin-modified bioactive glass ionomer cement (RMBGIC) containing various formulations of bioactive glass (BAG). Three types of BAG: BAG65 (65 mol% SiO2, 31 mol% CaO, 4 mol% P2O5), BAG75 (75 mol% SiO2, 21 mol% CaO, 4 mol% P2O5), BAG85 (85 mol% SiO2, 11 mol% CaO, 4 mol% P2O5) were prepared using sol-gel method, grounded, micronized, and mixed with GIC powder (Fuji II LC, GC) in the following proportions: 1:1, 1:2, 1:3. The mixed-ionomer powders were combined with standard RMGIC liquid (Fuji II LC, GC) and light cured (40 s; Ultra Lume LED, 1100 mW/cm2) in cylindrical disk molds (5 mm x 2 mm). The cured RMBGIC specimens were grounded and sieved to 100 !m and immersed (20 mg; n=5) in 3 ml of simulated body fluid (SBF), at 37°C for 1/4, 1/2, 1, 3, 6 and 24 hours with continuous agitation. Following centrifugation and decanting, the [Ca+2] and [HxPO4 3-x] in the SBF were measured using ion specific electrode and visible spectroscopy, respectively. The amount of ion release were statistically analyzed using ANOVA/Tukey ($= 0.05). The [PO4 3-] in SBF immediately increased for all RMBGICs. The ion release slowly decreased after 1 h, yet remained higher than the original SBF over the 24 h period. The [PO4 3-] in SBF for the control GIC continuously decreased. Overall, BAG65 > BAG75= BAG85 > GIC for [PO4 3-]. The [Ca2+] release increase initially for all RMBGICs, remaining with higher values than thecontrol GIC. Resin modified glass ionomer cement... (Complete abstract click electronic access below)
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Eghtesadi, Neda. "Mechanical properties of resorbable PCL/FastOs® BG composite materials." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13636.

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Mestrado em Materiais e Dispositivos Biomédicos
Bioresorbable composites nowadays play an increasingly important role in the modern medicine, especially in orthopaedics for the fixation of bone fractures and tendons. Contrarily to the metallic counterparts, they prevent a second surgical operation to remove them, because they will be gradually integrated in the bone tissues. Finding ways to improve their physical and mechanical properties to better fit the intended specific conditions and environments has been a goal in many researches. It has already established that size, shape, aspect ratio and volume fraction of reinforcing particles are parameters which can effect on mechanical properties of a composite. The aim of this work is to investigate the effect of different proportion of particulate FastOs®BG Di70 bioactive glass filler on the mechanical properties of polycaprolactone (PCL) matrix. The selection of the PCL was based on its set of interesting properties, including the FDA approval for biomedical applications and the relatively low cost. The main drawbacks of PCL are related to its relatively hydrophobic nature and the slow degradation rate it undergoes in vivo (up to 3-4 years). The present work has a multifold purpose and aims at overcoming and/or mitigating the main identifies limitations of PCL, namely enhancing relevant mechanical properties, fastening the biodegradation rate in vivo, and turning the material bioactive. For this, FastOs®BG Di70 bioglass powder was selected as filler. This bioglass is characterised by a high biomineralisation rate in vitro, has a more hydrophilic character and higher Young modulus. The combination of PCL-FastOs®BG Di70 bioglass in different proportions is therefore expected to confer to the composites a more balanced set of properties for the intended applications. The mechanical properties of composites were assessed under different testing modes (tensile, compressive, oscillatory and torsional).
Compósitos biorreabsorvíveis desempenham hoje em dia um papel cada vez mais importante na medicina moderna, especialmente em ortopedia para a fixação de fracturas ósseas e de tendões. Contrariamente aos dispositivos metálicos, eles evitam uma segunda intervenção cirúrgica para os remover, sendo gradualmente integrados nos tecidos ósseos. Encontrar maneiras de melhorar suas propriedades físicas e mecânicas para melhor atender as condições e ambientes específicos a que se destinam tem sido uma meta estabelecida em vários trabalhos de investigação. Com base nesses trabalhos, foi possível estabelecer que o tamanho, a forma e a razão de aspecto, bem como a fracção volúmica das partículas de reforço constituem os principais parâmetros que afectam as propriedades mecânicas de um compósito. O objectivo deste trabalho é investigar o efeito da adição de diferentes proporções de partículas do vidro bioativo FastOs®BG Di70 nas propriedades mecânicas de policaprolactona (PCL) usada como matriz. A selecção desta matriz foi baseada num conjunto de propriedades interessantes que possui, incluindo o facto de ter sido aprovada pela FDA para aplicações biomédicas e ser relativamente barata. As principais desvantagens da PCL estão relacionados com a sua natureza relativamente hidrofóbica, e com uma taxa de degradação lenta in vivo (até 3-4 anos). O presente trabalho tem uma finalidade múltipla e visa a superação e / ou mitigar as principais limitações identificadas para a PCL, ou seja, melhorar as propriedades mecânicas relevantes, acelerar a taxa de biodegradação in vivo, e tornar os materiais compósitos bioactivos. Para o efeito seleccionou-se o biovidro FastOs®BG Di70 na forma de pó como material de enchimento. Este biovidro é caracterizado por uma elevada taxa de biomineralização in vitro, tem um caracter mais hidrófilo e um módulo de elasticidade mais elevado. Assim, da combinação em proporções diferentes de PCL-FastOs®BG Di70, espera-se que resultem materiais compósitos com um conjunto mais equilibrado de propriedades para as aplicações almejadas. As propriedades mecânicas dos compósitos foram avaliadas sob diferentes modos de teste (de tração, compressão, torção e oscilatórios).
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Taha, Ayam Ali Hassoon. "Development of a novel bioactive glass propelled via air-abrasion to remove orthodontic bonding materials and promote remineralisation of white spot lesions." Thesis, Queen Mary, University of London, 2018. http://qmro.qmul.ac.uk/xmlui/handle/123456789/43997.

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Enamel damage and demineralisation are common complications associated with fixed orthodontic appliances. In particular, the clean-up of adhesive remnants after debonding is a recognised cause of enamel damage. Furthermore, fixed attachments offer retentive areas for accumulation of cariogenic bacteria leading to enamel demineralisation and formation of white spot lesions (WSLs). Bioactive glasses may be used to remove adhesives, preserving the integrity of the enamel surface, while also having the potential to induce enamel remineralisation, although their efficacy in both respects has received little attention. A systematic review evaluating the remineralisation potential of bioactive glasses was first undertaken. No prospective clinical studies were identified; however, a range of in vitro studies with heterogeneous designs were identified, largely providing encouraging results. A series of glasses was prepared with molar compositions similar to 45S5 (SylcTM; proprietary bioactive glass) but with constant fluoride, reduced silica and increased sodium and phosphate contents. These glasses were characterised in several tests and the most promising selected. This was designed with hardness lower than that of enamel and higher than orthodontic adhesives. Its effectiveness in terms of removal of composite- and glass ionomer- based orthodontic adhesives was evaluated against SylcTM and a tungsten carbide (TC) bur. This novel glass was subsequently used for remineralisation of artificially-induced orthodontic WSLs on extracted human teeth. The novel glass propelled via the air-abrasion system selectively removed adhesives without inducing tangible physical enamel damage compared to SylcTM and the conventional TC bur. It also remineralised WSLs with surface roughness and intensity of light backscattering similar to sound enamel. In addition, mineral deposits were detected on remineralised enamel surfaces; these acted as a protective layer on the enamel surface and improved its hardness. This layer was rich in calcium, phosphate, and fluoride; 19F MAS-NMR, confirmed the formation of fluorapatite. This is particularly beneficial since fluorapatite is more chemically stable than hydroxyapatite and has more resistance to acid attack. Hence, a promising bioactive glass has been developed.
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Raghuraman, Kapil. "Synthesis and Evaluation of a Zn-Bioactive Glass Series to Prevent Post-Operative Infections in Craniofacial Applications." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1525241500626456.

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Perrin, Eloïse. "Elaboration et caractérisation d'un biomatériau bioactif et résorbable à base de polylactide et de verre bioactif." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI110.

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Cette étude porte sur le développement et la caractérisation d’un biomatériau d’ostéosynthèse bioactif, biorésorbable et présentant une tenue mécanique la plus élevée possible. Il a pour vocation de favoriser la repousse osseuse tout en remplaçant temporairement les fonctions mécaniques de l’os. Le matériau, élaboré à base d’un polyacide lactique et de verre bioactif, doit pouvoir être transformé par injection moulage de manière à obtenir des formes complexes de petites tailles telles que des vis, des ancres ou des plaques d’ostéosynthèse. Le bioverre permet au matériau de se lier facilement à l’os tandis que le polyacide lactique apporte des propriétés mécaniques essentielles pour des applications impliquant des contraintes et l’aptitude à la mise en oeuvre. Des biocomposites à base du bioverre 45S5 existent déjà mais leurs applications sont limitées du fait d’interactions bioverre/polymères partiellement incomprises qui provoquent une stabilité thermique très faible. Un contrôle systématique de la dégradation thermique des matériaux a permis d’établir la matrice polymère, le procédé d’élaboration composite et la granulométrie du bioverre optimaux pour l’obtention d’un composite de référence à base de 45S5. Par la suite, le suivi in vitro de composites élaborés à partir de nouveaux bioverres a permis de mieux comprendre l’influence de la composition des bio-verres ainsi que les interactions polymère/bioverre. Ces essais ont permis d’identifier une nouvelle formulation permettant d’allier bioactivité (formation d’hydroxyapatite au bout de 15 jours dans du SBF) et dégradation in vitro minimisée. Cette formulation a présenté des propriétés thermiques et rhéologiques similaires à celle du polymère permettant une mise en forme de petites pièces par injection moulage bien plus aisée qu’avec le composite 45S5. En outre, au bout de 4 mois d’immersion in vitro dans du PBS, les propriétés mécaniques en traction de ce matériau s’approchent de celles du polymère et sont largement supérieures à celles du composite à base de 45S5
The elaboration and characterization of a bioresorbable and bioactive biomaterial with mechanical properties as high as possible for osteosynthesis applications is the purpose of this study. This biomaterial must promote bone healing while replacing temporarily its mechanical functions. It is made with a polylactic acid and a bioactive glass and it must be easy to process through plasturgy methods in order to obtain small complex shapes as screws, anchors or osteosynthesis plates. The bioactive glass enhances the bioactivity of the material allowing it to link with the bone and the polylactic acid brings good mechanical properties essential to the applications that imply stress support and process aptitude. Biocomposites elaborated with 45S5 bioactive glass already exist but their applications are limited because of poorly understood bioactive glass/polymer interactions implying a weak thermal stability. A systematic control of the thermal degradation of the materials allows to define the best polymer matrix, composite elaboration process and bioactive glass granulometry to obtain an optimized 45S5 composite which stands for reference composite. Then, the in vitro follow-up of composites made with new bioactive glasses enhances the comprehension of the influence of the composition of the bioac-tive glass as well as the polymer/bioactive glass interactions. Hence, a new optimal formulation was identified. This formulation showed bioactivity (hydroxyapatite formation after 15 days in SBF) and a minimized in vitro degradation. Moreover, it showed thermal and rheological properties similar to neat polymer’s, which allows the thermomanufacturing of small pieces easierly than with the 45S5 composite. Plus, after an in vitro degradation in PBS of 4 months, its tensile properties were close to polymers’ and largely superior to 45S5 composite’s
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Hum, Jasmin [Verfasser], and Aldo R. [Gutachter] Boccaccini. "Bioactive glass combined with natural derived proteins as composite materials for the application in bone tissue engineering / Jasmin Hum. Gutachter: Aldo R. Boccaccini." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2016. http://d-nb.info/1103801953/34.

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Books on the topic "BIOACTIVE GLASS MATERIALS"

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V, Rajendran. Bioactive glasses for implant applications. New Delhi: Defence Research and Development Organisation, Ministry of Defence, 2010.

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Biomedical, Therapeutic and Clinical Applications of Bioactive Glasses. Woodhead Publishing, 2018.

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Kaur, Gurbinder. Biomedical, Therapeutic and Clinical Applications of Bioactive Glasses. Elsevier Science & Technology, 2018.

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Book chapters on the topic "BIOACTIVE GLASS MATERIALS"

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Kim, Duck Hyun, Kang Sik Lee, Jung Hwa Kim, Jae Suk Chang, and Yung Tae Kim. "The Influence of Bioactive Glass Particles on Osteolysis." In Key Engineering Materials, 193–96. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-422-7.193.

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Nandyala, S. H., P. S. Gomes, G. Hungerford, L. Grenho, M. H. Fernandes, and A. Stamboulis. "Development of Bioactive Tellurite-Lanthanide Ions–Reinforced Hydroxyapatite Composites for Biomedical and Luminescence Applications." In Tellurite Glass Smart Materials, 275–88. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76568-6_12.

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Xue, Ming, Jun Ou, Da Li Zhou, Dange Feng, Wei Zhong Yang, Guanda Li, Dan Ping Liu, and Yan Song Wang. "Preparation and Properties of Porous Apatite-Wollastonite Bioactive Glass-Ceramic." In Key Engineering Materials, 169–72. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-422-7.169.

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Lin, Kai Li, Si Yu Ni, Jiang Chang, Wan Yin Zhai, and Wei Ming Gu. "Fabrication and Characterization of Bioactive Glass Reinforced CaSiO3 Ceramics." In Key Engineering Materials, 181–84. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-422-7.181.

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Miao, X. "Modification of Porous Alumina Ceramics with Bioinert and Bioactive Glass Coatings." In Frontiers in Materials Science and Technology, 211–14. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-475-8.211.

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Fathi, Mohammadhossein, Vajihesadat Mortazavi, and Maryam Mazrooei Sebdani. "Preparation of Hydroxyapatite-Forsterite-Bioactive Glass Composite Nanopowder for Biomedical Applications." In Analysis and Design of Biological Materials and Structures, 103–9. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-22131-6_8.

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Niemelä, Tiiu, and Minna Kellomäki. "Three Composites of Bioactive Glass and PLA-Copolymers: Mass Loss and Water Absorption in Vitro." In Key Engineering Materials, 431–34. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-422-7.431.

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Cochis, Andrea, Andrea Cochis, Andrea Cochis, Marta Miola, Marta Miola, Oana Bretcanu, Lia Rimondini, Lia Rimondini, and Enrica Vernè. "Magnetic Bioactive Glass Ceramics for Bone Healing and Hyperthermic Treatment of Solid Tumors." In Advanced Magnetic and Optical Materials, 81–112. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119241966.ch3.

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Du, Rui Lin, Shao Xian Zeng, Yu Huai Wu, and Xing Hui Xie. "Hydroxyapatite and Bioactive Glass Composite Coating on Ti6Al4V." In Key Engineering Materials, 589–92. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-422-7.589.

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Quintero, L. A., and D. M. Escobar. "Chemical Composition Effect of Sol-Gel Derived Bioactive Glass Over Bioactivity Behavior." In Proceedings of the 3rd Pan American Materials Congress, 11–19. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52132-9_2.

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Conference papers on the topic "BIOACTIVE GLASS MATERIALS"

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Lukowiak, Anna, Katarzyna Halubek-Gluchowska, Marzena Fandzloch, Weronika Bodylska, Damian Szymanski, Beata Borak, and Yuriy Gerasymchuk. "Luminescent bioactive nanoglasses: different approaches to gain photoactivity." In Fiber Lasers and Glass Photonics: Materials through Applications III, edited by Stefano Taccheo, Maurizio Ferrari, and Angela B. Seddon. SPIE, 2022. http://dx.doi.org/10.1117/12.2620676.

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Ismail, Nursyazwani, Hasmaliza Mohamad, and Nurazreena Ahmad. "Fabrication and characterization of 45S5 bioactive glass microspheres." In 3RD INTERNATIONAL POSTGRADUATE CONFERENCE ON MATERIALS, MINERALS & POLYMER (MAMIP) 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0015700.

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Jukola, H., L. Nikkola, M. E. Gomes, F. Chiellini, M. Tukiainen, M. Kellomäki, E. Chiellini, et al. "Bioactive Glass Fiber Reinforced Starch-Polycaprolactone Composite for Bone Applications." In MULTISCALE AND FUNCTIONALLY GRADED MATERIALS 2006. AIP, 2008. http://dx.doi.org/10.1063/1.2896916.

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Ducheyne, Paul, Hongxia Gao, Ahmed El-Ghannam, Irving Shapiro, and Portonovo Ayyaswamy. "The Use of Bioactive Glass Particles As Microcarriers." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-1192.

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Abstract Among the various materials that affect bone cell function, and therefore, could serve as the microcarrier material, bioactive glass has been our material of choice. In the early seventies, Hench et al.[1] formulated these glasses with a typical composition of 45% SiO2, 24.5% Na2O, 24.5% CaO and 6% P2O5 (by weight). They documented that upon implantation in bone tissue, this glass called bioactive glass 45S5, firmly adhered to bone. By now, at least nine groups from around the world have shown that glasses typically containing 40–60 mole % SiO2 and various amounts of Na2O, CaO, P2O5 and some smaller amounts of other oxides bond to bone tissue. As the glass is immersed in vivo, bodily fluids cause the glass to corrode. This corrosion results in selective leaching of sodium ions, the formation of a silica gel layer, and eventually the formation of a calcium phosphate rich layer. It is a recent finding that bioactive glass, when made in granular form with a narrow size range (300–355 μm), has the unique capacity to cause differentiation of osteoprogenitor cells to cells expressing the osteoblastic phenotype [2]. This property of upregulating stromal osteoprogenitor cells to osteoblasts in vivo, as well as the capacity to enhance the expression of the osteoblastic phenotype in vitro, form the basis for our selection of bioactive glass 45S5 as the carrier of choice for culturing typical bone tissue cells in microgravity environment.
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Fakhruddin, Ahmad Kamil, Nurul Amirah Anjalani, and Hasmaliza Mohamad. "Fabrication of bioactive glass-cordierite composite scaffold by gelcasting method." In 3RD INTERNATIONAL POSTGRADUATE CONFERENCE ON MATERIALS, MINERALS & POLYMER (MAMIP) 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0015707.

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Fakhruddin, Ahmad Kamil, Chun Wei, and Hasmaliza Mohamad. "Effect of cordierite addition into bioactive glass on mechanical and bioactivity properties." In MATERIALS CHARACTERIZATION USING X-RAYS AND RELATED TECHNIQUES. Author(s), 2019. http://dx.doi.org/10.1063/1.5089368.

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García, Andrés J., Paul Ducheyne, and David Boettiger. "Effects of Applied Detachment Force, Fibronectin Adsorption, and Surface Reaction Stage on Initial Cell Adhesion to Bioactive Glass." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-1201.

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Abstract Bone bioactive materials, react with physiological fluids, enhance osseous tissue formation, and bond to bone. Cell adhesion to bioactive materials is one of the events involved in bone bioactivity. The effects of applied detachment force, fibronectin adsorption, and surface reaction treatment on the initial attachment of osteogenic cells to bioactive glass were examined using a spinning disk device. This apparatus applies a range of surface shear stresses while maintaining a uniform surface chemical environment. The number of adherent cells decreased sigmoidally with applied force. The adhesion strength varied linearly with fibronectin surface density. Surface reaction treatment of bioactive glass enhanced fibronectin-mediated cell adhesion but did not affect the amount of adsorbed fibronectin, suggesting changes in the conformation of the adsorbed fibronectin.
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Del Val, J., R. Comesaña, F. Lusquiños, F. Quintero, A. Riveiro, M. Boutinguiza, and J. Pou. "Laser-assisted manufacturing of bioactive glass implants for cranial defect restoration." In ICALEO® 2011: 30th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2011. http://dx.doi.org/10.2351/1.5062217.

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Ab llah, N., S. B. Jamaludin, Z. C. Daud, and M. A. F. Zaludin. "Mg-Zn based composites reinforced with bioactive glass (45S5) fabricated via powder metallurgy." In THE 2ND INTERNATIONAL CONFERENCE ON FUNCTIONAL MATERIALS AND METALLURGY (ICoFM 2016). Author(s), 2016. http://dx.doi.org/10.1063/1.4958756.

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Batra, Uma, Seema Kapoor, J. D. Sharma, S. K. Tripathi, Keya Dharamvir, Ranjan Kumar, and G. S. S. Saini. "Nano-Hydroxyapatite∕Fluoridated and Unfluoridated Bioactive Glass Composites: Structural Analysis and Bioactivity Evaluation." In INTERNATIONAL CONFERENCE ON ADVANCES IN CONDENSED AND NANO MATERIALS (ICACNM-2011). AIP, 2011. http://dx.doi.org/10.1063/1.3653714.

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