نتایج جستجو برای: Bioactive Glass

تعداد نتایج: 101567  

2017
Lasse Højlund Thamdrup Fredrik Persson Henrik Bruus Anders Kristensen Henrik Flyvbjerg

Journal: :journal of dentistry, tehran university of medical sciences 0
mh. fathi v. mortazavi a. doostmohammadi

objective: osseous defects around dental implants are often seen when implants are placed in areas with inadequate alveolar bone, or around failing implants. bone regeneration in these areas using bone grafts or its substitutes may improve dental implants prognosis. the aim of this study was to prepare and characterize the bioactive glass nanopowder and development of its coating for treatment ...

Journal: :modares journal of medical sciences: pathobiology 2012
sahba mobini mehran solati-hashjin saeed hesaraki michael gelinsky

objective: one of the major issues in bone tissue engineering is the design and fabrication of bioactive, bioresorbable porous 3d scaffolds capable of maintaining their structure and integrity over a predictable period of time. one such approach is the fabrication of composite scaffolds. methods: in this study we present fabrication and characterization of novel silk/bioglass-composite scaffold...

Fabrication of biomaterials with ability to form a bond with bone tissue for bone skeletal system repair is one of the biomaterial science aims. Bioactive glasses containing CaO-SiO2-P2O5 are among the most important groups used in biomedicine and dentistry such as bone defect repair and maxillo-facial reconstruction. The aim of this work was preparation and characterization of nano particle b...

Journal: :dental research journal 0
mohammad tavakoli ensiyeh bateni mansour rismanchian mohammadhossein fathi ali doostmohammadi azim rabiei

background: the greater surface of bioactive glass nanoparticles presents an incomparable and promising feature similar to the biological apatite. nanoparticles improve cellular adhesion, enhance osteoblast proliferation and differentiation, and increase biomineralization for periodontal regeneration and dental implants. considering the fact that interaction between periodontal cells and bone g...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2002
amanollah aminzadeh mohammad sarfaraz abbas yalan

bioactive materials including glass and glass-ceramics are nowadays used as medical implants for orthopedic applications. in this study several samples of glass-ceramics have been prepared using both heat treatment and sol-gel processes. the structure and bioactivity of these samples based on their interaction with simulated body fluid (sbf) have been determined. in-vitor, using the raman spect...

Journal: :journal of dentistry, tehran university of medical sciences 0
r. haghgoo assistant professor, department of pediatric dentistry, school of dentistry, shahed university of me n. jalayer naderi assistant professor, department of pathology, school of dentistry, shahed university of medical scie

objective: bioactive glass is often used as a filler material for repair of dental bone defects. in different studies osteogenic potential of this material was proved, but its dentinogenesis property is in doubt. the purpose of this study was to evaluate the histological pulp responses of calcium hydroxide and bioactive glass placed directly on exposed pulp tissues. materials and methods: twent...

Journal: :avicenna journal of medical biochemistry 0
zohre alijanian department of microbiology, faculty of biological science, falavarjan branch, islamic azad university, falavarjan, isfahan, ir iran; department of microbiology, faculty of biological science, falavarjan branch, islamic azad university, falavarjan, isfahan, ir iran. tel: +98-3137420136 nasrin talebian department of chemistry, faculty of biological science, shahreza branch, islamic azad university, shahreza, isfahan, ir iran monir doudi department of microbiology, faculty of biological science, falavarjan branch, islamic azad university, falavarjan, isfahan, ir iran

conclusions increasing the cu nanoparticles in bioactive glass samples leads to the release of cu2+, which has a positive effect on the antibacterial mechanism, as well as decreasing the cultured staphylococcus colonies found on the bioglasses. therefore, it seems that the nanocomposite/bioglass of cuo is a promising option for aerobic bacterial inhibitor systems in common bone implant infectio...

2012
Ankesh Kumar Srivastava S. P. Singh

CuO, Fe2O3, MnO2 and ZnO substituted 45S5 bioactive glasses were prepared. Glass derived Bioactive Glass ceramics were obtained through controlled crystallization of bioactive glasses. The formed crystalline phases in bioactive glass ceramics were identified using X ray diffraction (XRD) analysis. Density and ultrasonic wave velocities of bioactive glasses and glass ceramics were measured and u...

2014
D. Malarvizhi M. Kavitha A. Karthick Sree Balaji

Introduction: The aim of this study was to evaluate the sealing ability of Bioactive glass (BG) and Bioactive glass-Hydroxyapatite (BG-HA) in comparison to Mineral Trioxide Aggregate (MTA). Methods: The sealing ability of Bioactive glass and Bioactive glass-hydroxyapatite mixed with glass ionomer cement and Mineral Trioxide Aggregate used as retrograde filling material was assessed by bacterial...

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