نتایج جستجو برای: bioactive glass nanoparticles

تعداد نتایج: 206489  

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...

2012
Ankesh Kumar Srivastava S. P. Singh

Abstract — Fe2O3 substituted 45S5 bioactive glasses were prepared. Glass derived Bioactive Glass ceramics were obtained through controlled crystallization of bioactive glasses. Nucleation and crystallization regimes were determined by the parameters obtained from differential thermal analysis (DTA) of bioactive glasses. The formed crystalline phases in bioactive glass ceramics were identified u...

Journal: :journal of dental biomaterials 0
z. abbasi department of materials science and engineering, school of engineering, shiraz university, shiraz, iran me. bahrololoom department of materials science and engineering, school of engineering, shiraz university, shiraz, iran mh shariat department of materials science and engineering, school of engineering, shiraz university, shiraz, iran r. bagheri department of dental materials and biomaterial research center, shiraz university of medical sciences, shiraz, iran

bioactive glasses are silicate-based and can form a strong chemical bond with the tissues. these biomaterials are highly biocompatible and can form a hydroxyapatite layer when implanted in the body or soaked in the simulated body fluid. due to several disadvantages, conventional glass processing method including melting of glass components, is replaced by sol-gel method with a large number of b...

2011
Oliveira Pereira

The periodontium is a complex tissue consisting of soft and mineralized structures. Several diseases affect the integrity of periodontium causing the destruction of the connective tissue and cells. In recent decades bioactive glass has been used in several studies in the dental field because of its excellent regenerative properties. It is known that the effect of bioactive glass can be enhanced...

Journal: :The International journal of oral & maxillofacial implants 2004
Ahmed El-Ghannam Hany Amin Tamer Nasr Ashraf Shama

PURPOSE Bioactive glass bonds to bone through a calcium phosphate layer that mimics the structure of the mineral phase of bone. Formation of this layer is inhibited in the presence of serum protein. The authors hypothesize that creation of a calcium phosphate layer on the surface of bioactive glass before implantation will enhance bone regeneration and graft material resorption in bone defects....

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