نتایج جستجو برای: ceramic core

تعداد نتایج: 237802  

The daily increase in Patientschr('39') demand for cosmetic treatments has led to dental restorations moving towards the use of all-ceramic materials. The development of all-ceramic restorations over the last decade has revolutionized aesthetic dentistry. Recent advances in ceramic manufacturing and processing methods have led to the evolutionary growth of all-ceramic materials with superior bi...

Journal: :هنرهای سنتی اسلامی 0
امیر نظری ایمان زکریایی کرمانی مهرنوش شفیعی سرارودی

abstract today, pottery in shahreza of isfahan is a valuable arts with its up and downs which has stabilized  its place among iranian pottery centers. the investigation of contemporary pottery in the course of  history shows that iranian potters have used predecessors' experiences, as well as remained  professions of pottery art such as soheili, bahari and fakhar, and tried to promote qual...

یارمحمدی سطری, معصومه, عمیقیان, جمشید, مظفری, مرتضی ,

In this work yttrium iron garnet (Y3Fe5O12 or YIG) nanoparticles have been prepared by sol-gel method, raw materials were dissolved in citric acid and warmed up and stirred to form a gel. Synthesized nanoparticles were characterized, using X-ray diffraction (XRD), FT-IR and TG-DTA methods. Magnetic properties of the nanoparticles were measured, using vibrating sample magnetometer (VSM) and Fara...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2015
Irena Sailer Nikolay Alexandrovich Makarov Daniel Stefan Thoma Marcel Zwahlen Bjarni Elvar Pjetursson

OBJECTIVE To assess the 5-year survival of metal-ceramic and all-ceramic tooth-supported single crowns (SCs) and to describe the incidence of biological, technical and esthetic complications. METHODS Medline (PubMed), Embase, Cochrane Central Register of Controlled Trials (CENTRAL) searches (2006-2013) were performed for clinical studies focusing on tooth-supported fixed dental prostheses (FD...

Journal: :The Journal of bone and joint surgery. British volume 2009
S Salih V A Currall A J Ward T J S Chesser

Surgeons remain concerned that ceramic hip prostheses may fail catastrophically if either the head or the liner is fractured. We report two patients, each with a ceramic-on-ceramic total hip replacement who sustained high-energy trauma sufficient to cause a displaced periprosthetic acetabular fracture in whom the ceramic bearings survived intact. Simultaneous fixation of the acetabular fracture...

Journal: :Clinical oral implants research 2007
Bjarni E Pjetursson Irena Sailer Marcel Zwahlen Christoph H F Hämmerle

OBJECTIVES The objective of this systematic review was to assess the 5-year survival rates of all-ceramic single crowns and to compare it with the survival rates of metal-ceramic crowns and to describe the incidence of biological and technical complications. METHODS An electronic Medline and Dental Global Publication Research System search complemented by manual searching was conducted to ide...

Journal: :international journal of environmental research 2011
j.n. bhakta y. munekage

the present investigation attempted to develop the ceramic adsorbent media in order to remove the mercury from aqueous phase. two ceramics, akadama volcanic ash soil-ceramic (aceramic) and improved magnesium oxide impregnated akadama volcanic ash soil-ceramic (maceramic) were produced from raw akadama volcanic ash soil by heating process to determine the hg(ii) adsorption capacity. adsorption e...

Journal: :Acta medica 2007
Shriharsha Pilathadka Dagmar Vahalova

Over the past 35 years, multiple types of all-ceramic materials have been introduced as an ideal alternative for metal-fused to ceramic. This review covers state-of-the-art development of all-ceramic systems in terms of history, material composition, fabrication technologies, and structural and strength properties. These materials are proved to be ideal in terms of mechanical properties and bio...

Journal: :Bulletin du Groupement international pour la recherche scientifique en stomatologie & odontologie 2012
F Massimi G Merlati M Sebastiani P Battaini P Menghini E Bemporad

Recently introduced FIB/SEM analysis in microscopy seems to provide a high-resolution characterization of the samples by 3D (FIB) cross-sectioning and (SEM) high resolution imaging. The aim of this study was to apply the FIB/SEM and SEM/EDS analysis to the interfaces of a metal-ceramic vs. two zirconia-ceramic systems. Plate samples of three different prosthetic systems were prepared in the den...

2011
Lars Borchardt Martin Oschatz Robert Frind Emanuel Kockrick Martin R Lohe Christoph P Hauser Clemens K Weiss Katharina Landfester Bernd Büchner Stefan Kaskel

For the first time we present the synthesis of CeO(2)/Si(O)C core-shell particles prepared by the miniemulsion technique. The Si(O)C core was obtained by means of a polycarbosilane precursor (SMP10), which was subsequently functionalized with ceria and pyrolyzed to the ceramic. The size of these particles could easily be adjusted by varying the surfactants and the surfactant concentration, or b...

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