نتایج جستجو برای: tricalcium phosphate

تعداد نتایج: 104721  

In this study, using biodegradable polymers, nanofiberouse scaffolds were fabricated from the layer-by-layer electrospinning method, including two layer that poly (ε-caprolactone), polyvinylpyrrolidone deposited at first layer and poly (ε-caprolactone), polyvinyl alcohol , β-tricalcium phosphate at latter. After prepration of scaffolds, scanning electron microscopy (SEM), swelling, porosity, me...

2018
Elisabet Farré-Guasch Nathalie Bravenboer Marco N. Helder Engelbert A. J. M. Schulten Christiaan M. ten Bruggenkate Jenneke Klein-Nulend

Bone substitutes are used as alternatives for autologous bone grafts in patients undergoing maxillary sinus floor elevation (MSFE) for dental implant placement. However, bone substitutes lack osteoinductive and angiogenic potential. Addition of adipose stem cells (ASCs) may stimulate osteogenesis and osteoinduction, as well as angiogenesis. We aimed to evaluate the vascularization in relation t...

Journal: :journal of medical signals and sensors 0
mehdi ebrahimian hosseinabadi mohammadreza etemadifar fakhredin ashrafizadeh

in this paper, preparation, bioactivity, and osteoblast cell behavior of cortical bone derived nanobiphasic calcium phosphate (nano-bcp) are presented. the calcined bovine bone samples with the addition of di-ammonium hydrogen phosphate were heated at 700°c for 100 min, and thus nano-bcp with the composition of 63/37 hydroxyapatite (ha)/β-tricalcium phosphate (β-tcp) was produced. scanning elec...

2012
G. Balakrishna A. Shiva Shanker Pavan Kumar Pindi

The present study was carried out in order to establish a suitable protocol for the screening of phosphate solubilizing actinomycetes. 10 isolates with distinct morphology were isolated and purified on starch casein agar from forest soils of Mahabubnagar district, Andhra Pradesh. These isolates screened for phosphate solubilizing activity on modified starch casein agar which contains tricalcium...

Journal: :Molecular medicine reports 2015
Le Yang Qinghua Wang Lihua Peng Hong Yue Zhendong Zhang

Ensuring histocompatibility in the tissue engineering of bones is a complex issue. The aim of this study was to observe the feasibility of chitosan-β-tricalcium phosphate composite in repairing limb bone defects, and to evaluate the therapeutic effects on osteogenesis. Beagle mesenchymal stem cells (MSCs) were divided into an experimental group that was cultured with an injectable form of chito...

Journal: :Advanced Engineering Materials 2021

Aligned porous non-sintered and sintered a-tricalcium phosphate (a-TCP) scaffolds are prepared by ice-templating converted into the low-temperature calcium phosphates calcium-deficient hydroxyapatite (CDHA), brushite monetite. This is achieved hydrothermal treatment or incubation in phosphoric acid solution has a high clinical potential due to higher solubility of these phases. Further details ...

2014
Ľ. Medvecký R. Hudák M. Giretová R. Štulajterová

A rough surface texture was found on laser sintered titanium substrate, which was responsible for instability of the calcium phosphate layer from the point of view of obtaining good adhesivity to the substrate at given preparation conditions. After the mechanical treatment and following soaking of Ti substrate in 3 M NaOH solution, the surface texture was much smoother than in the original samp...

2013
Jabr S. Al-Sanabani Ahmed A. Madfa Fadhel A. Al-Sanabani

Calcium phosphate materials are similar to bone in composition and in having bioactive and osteoconductive properties. Calcium phosphate materials in different forms, as cements, composites, and coatings, are used in many medical and dental applications. This paper reviews the applications of these materials in dentistry. It presents a brief history, dental applications, and methods for improvi...

Journal: :Dental traumatology : official publication of International Association for Dental Traumatology 2009
Mohammad A D Al Ansary Peter F Day Monty S Duggal Paul A Brunton

BACKGROUND Apical barrier formation and root strengthening procedures have been extensively described in the literature. This systematic review attempts to establish where the effects of interventions using multi-visit apexification, single visit apical plug techniques and root strengthening procedures are consistent and where they may vary significantly. OBJECTIVES To evaluate the relative e...

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