نتایج جستجو برای: mercury amalgam

تعداد نتایج: 43944  

Journal: :Occupational and environmental medicine 2005
B A Dye S E Schober C F Dillon R L Jones C Fryar M McDowell T H Sinks

BACKGROUND Mercury amalgam dental restorations have been used by dentists since the mid 19th century and issues on safety continue to be periodically debated within the scientific and public health communities. Previous studies have reported a positive association between urine mercury levels and the number of dental amalgams, but this relation has never been described in a nationally represent...

2011
Marília Oliveira Barbosa Adriana Fernandes da Silva Rodrigo Varella de Carvalho Sandra Beatriz Chaves Tarquinio Flávio Fernando Demarco

Purpose: Dental amalgam has been used as a dental restoration for more than 165 years. However, some patients with these restorations may present oral lichenoid lesions (OLL). OLL are chronic oral mucosal contact reactions to dental amalgam. Their diagnosis usually is based on the direct contact of the affected mucosa with the amalgam restorations, clinical appearance, and lack of migrations. A...

2010
Masayoshi OHASHI

The physical properties of amalgam are influenced by various manipulative factors such as mercury-alloy ratio, mixing time, existence of a ball in the capsule in the process of mixing, condensation pressure and the twisting movement given to the amalgam mix by the plugger in the process of condensation[1-8]. These factors, on the whole, determine the properties of amalgam restorations. It is cl...

Journal: :Pesquisa Brasileira em Odontopediatria e Clínica Integrada 2020

2013
C.Gómez-Giménez E.García-Díez

The largest source of mercury to the atmosphere in the world is the burning of fossil fuels, primarily coal. Electrical power plants are estimated to account for about 25% of the global anthropogenic mercury emissions to the atmosphere and industrial and residential heating for another 20% [1]. According to the European Environmental Agency (EEA), Spain is the third country among EU27 in mercur...

2001
Samuel P. Kounaves Wen Deng

A mercury ultramicroelectrode (Hg-UME) has been prepared by electrochemical deposition of mercury on an iridium substrate. The iridium UMEs can be prepared with radii of l-20 pm using a molten salt etching solution of NaCl and NaNOs. The Ir and Hg UMEs have been characterized by cyclic voltammetry and chronoamperometry, and microscopically, and are shown to exhibit diffusional behavior in accor...

2012
Dana G. Colson

Today's environment has different impacts on our body than previous generations. Heavy metals are a growing concern in medicine. Doctors and individuals request the removal of their amalgam (silver mercury) restorations due to the high mercury content. A safe protocol to replace the silver mercury filling will ensure that there is minimal if any absorption of materials while being removed. Stro...

2017
Renáta Šelešovská Pavlína Martinková Michaela Štěpánková Tomáš Navrátil Jaromíra Chýlková

Voltammetric behavior of muscle relaxant dantrolene sodium (DAN) was studied and the voltammetric methods for its determination using polished and mercury meniscus modified silver solid amalgam electrodes (p-AgSAE and m-AgSAE) as well as using bismuth film electrode (BiFE, ex situ plating on GCE) have been proposed. These working electrodes represent the most commonly used alternatives to mercu...

2008
Herman Autrup Peter Calow Helmut Greim Wojciech Hanke Colin Janssen Hannu Komulainen Ole Ladefoged Jan Linders Inge Mangelsdorf Marco Nuti Anne Steenhout Emanuela Testai Marco Vighi

2013
María José Carroquino Pim De Voogt Raquel Duarte Colin Janssen Renate Krätke Jan Linders Greta Schoeters

......................................................................................................... 5 1. BACKGROUND ............................................................................................. 8 2. TERMS OF REFERENCE.................................................................................. 9 3. Opinion .................................................................

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید