نتایج جستجو برای: bioactive materials

تعداد نتایج: 465002  

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....

2016
C. Knabe A. Houshmand Paul Ducheyne M. Stiller G. Berger P. Ducheyne R. Gildenhaar I. Kranz

Ideally, bioactive ceramics for use in alveolar ridge augmentation should possess the ability to activate bone formation and, thus, cause the differentiation of osteoprogenitor cells into osteoblasts at their surfaces. Therefore, in order to evaluate the osteogenic potential of novel bone substitute materials, it is important to examine their effect on osteoblastic differentiation. This study e...

2014
Karina Klein Jason Schense Peter W. Kronen Nathalie Fouche Mariano Makara Katharina Kämpf Thomas Steffen

Prophylactic local treatment involving percutaneous vertebral augmentation using bioactive materials is a new treatment strategy in spine surgery in humans for vertebral bodies at risk. Standardized animal models for this procedure are almost non-existent. The purpose of this study was to: (i) prove the efficacy of PTH derivate bioactive materials for new bone formation; and (ii) create a new, ...

2015
V. Tamara Perchyonok Riaan Mulder Shengmiao Zhang Sias R Grobler

In any repair of a tooth with permanent restorative materials, the interface is always a sensitive region. The appearance of adhesive materials was a great step forward in dealing with the problems of this region and improving the overall performance of the restorations. However, contemporary adhesive materials do have a major disadvantage, namely that their durability is limited, a limitation ...

2015
Rafat Bagheri

ARTICLE INFO Abstract Article History Received: 2 October 2014 Accepted: 2 January 2015 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 inclu...

2012
Mohammad Tavakoli Ensiyeh Bateni Mansour Rismanchian Mohammadhossein Fathi Ali Doostmohammadi Azim Rabiei Hojat Sadeghi Mahmood Etebari Mina Mirian

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 gr...

Journal: :jundishapur journal of microbiology 0
nighat fatima department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan; department of biotechnology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan usman mukhtar department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan ihsan-ul-haq department of pharmacy, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan muneer ahmed qazi department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan; department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad 45320, pakistan. tel: +92-5190643009, fax: +92-5190643156 muniba jadoon department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan safia ahmed department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan

conclusions the present study confirms the notion of selecting endophytic fungi of medicinal plant justicia for the bioassay-guided isolation of its bioactive compounds, and demonstrates that endophytic fungus chaetomium sp. nf15 could be a potential source of bioactive metabolites materials and methods endophytic fungi associated with the j. adhatoda l. plant were isolated from healthy plant p...

Journal: :International Journal of Health Sciences (IJHS) 2022

The field of dentistry is rapidly shifting its focus toward biologically active restorative materials. Bioactive materials are those capable inducing and promoting the regeneration damaged tissue remineralizing demineralized dentinal structure as a vital dental pulp necessary for long-term healthy survival tooth. Vital therapy intends to protect prevail vitality which gets compromised when subj...

Journal: :The journal of contemporary dental practice 2011
Sayed Mostafa Mousavinasab Maryam Khoroushi Fateme Keshani Shirin Hashemi

INTRODUCTION Recent advances in dental materials have led to the production of smart materials. Recently, addition of bioactive materials to glass-ionomer cements has resulted in new capabilities beyond the beneficial effects of fluoride release. This in vitro study compared the flexural strengths (FS) of a resin-modified glass-ionomer containing bioactive glass (RMGIBAG) with that of a commonl...

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