نتایج جستجو برای: cold ceramic

تعداد نتایج: 128048  

Journal: :Journal of periodontology 2000
R Ruano R G Jaeger M M Jaeger

BACKGROUND Ceramic hydroxyapatites and non-ceramic hydroxyapatites have been used extensively as alloplastic materials for bone reconstruction. However, different forms of hydroxyapatite induce different types of tissue response. METHODS Human gingival fibroblasts (FMM1 cells) were used to analyze ceramic and non-ceramic hydroxyapatite biocompatibility. The cells were grown on surfaces covere...

Journal: :Orthopedics 2013
Giacomo Trivellin Andrea Sandri Nicola Bizzotto Marco Andrea Marino Silvio Mezzari Elena Sambugaro Dario Regis

Dislocation is one of the most common complications of total hip arthroplasty (THA). To the authors' knowledge, late recurrent dislocation of a THA with a ceramic-on-ceramic coupling secondary to fatigue fracture of the ceramic liner has never been described. A 76-year-old woman with right hip osteoarthritis underwent cementless modular THA with a ceramic-on-ceramic coupling. Approximately 10 y...

2012
Jasbinder Sanghera Woohong Kim Guillermo Villalobos Brandon Shaw Colin Baker Jesse Frantz Bryan Sadowski Ishwar Aggarwal

Ceramic laser materials have come a long way since the first demonstration of lasing in 1964. Improvements in powder synthesis and ceramic sintering as well as novel ideas have led to notable achievements. These include the first Nd:yttrium aluminum garnet (YAG) ceramic laser in 1995, breaking the 1 KW mark in 2002 and then the remarkable demonstration of more than 100 KW output power from a YA...

2014
Lalji Prajapati I. N. Patel

Ceramic waste is most commonly produce from ceramic industry, this waste is in the form of pest and hard form, pest waste is known as the filter waste or slurry waste, which is produced at the end of polishing and finishing of ceramic tiles. The paper discuss that ceramic slurry waste powder is replaced by cement in concrete. Concrete grade M25 was made by replacing by 0% to 30% of Ordinary Por...

2016
Tomoya Takasago Tomohiro Goto Keizo Wada Daisuke Hamada Toshiyuki Iwame Tetsuya Matsuura Akihiro Nagamachi Koichi Sairyo

The type of bearing material that should be used in revision surgery after the failure of ceramic-on-ceramic total hip arthroplasty (THA) remains controversial. In the case of ceramic fracture, the residual ceramic particles can cause consequent metallosis when metal implants are used for revision THA. On the other hand, in the case of THA failure without ceramic fracture, revision THA with a m...

Journal: :The Journal of prosthetic dentistry 2007
Bulent Uludag Aslihan Usumez Volkan Sahin Kursat Eser Ertugrul Ercoban

STATEMENT OF PROBLEM Although all-ceramic restorations are widely used, there is a lack of information on how color is affected by fabrication procedures. Color matching problems may be encountered in a definitive restoration despite careful shade selection. PURPOSE The aim of this study was to evaluate the effect of dentin ceramic thickness and repeated firings on the color of glass-infiltra...

2017
Hamid Esfahani Rajan Jose Seeram Ramakrishna

Ceramic nanofibers (NFs) have recently been developed for advanced applications due to their unique properties. In this article, we review developments in electrospun ceramic NFs with regard to their fabrication process, properties, and applications. We find that surface activity of electrospun ceramic NFs is improved by post pyrolysis, hydrothermal, and carbothermal processes. Also, when combi...

2017
Beeta Ehdaie Chloe T Rento Veronica Son Sydney S Turner Amidou Samie Rebecca A Dillingham James A Smith

The World Health Organization (WHO) recognizes point-of-use water treatment (PoUWT) technologies as effective means to improve water quality. This paper investigates long-term performance and social acceptance of a novel PoUWT technology, a silver-infused ceramic tablet, in Limpopo Province, South Africa. When placed in a water storage container, the silver-embedded ceramic tablet releases silv...

Abdollah Javan Rashid Ahmad Ghahremanloo Mohsen Movahedzadeh

Introduction: Marginal fit is a key factor for long term clinical success through any dental restorations. Poor marginal adaptation causes cement dissolution. This can lead to dental caries, gingival irritation, periodontal diseases, and finally treatment failure. The aim of this study was measurement and comparison of marginal gap quantities in metal ceramic and all ceramic dental restorations...

Journal: :Frontiers in Materials 2021

Cold sintering process (CSP) was successfully employed to fabricate (1 − x ) NaCa 2 Mg V 3 O 12 -xNaCl [abbreviated as NCMVO-xNaCl] microwave dielectric ceramics. )NCMVO-xNaCl ceramics prepared at 200°C and a pressure of 450 MPa had high relative density 80–94%. X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), Raman showed that both NCMVO NaCl p...

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