نتایج جستجو برای: dental filling material

تعداد نتایج: 541478  

Journal: :The Science of the total environment 2003
Jan S Vamnes Rune Eide Rolf Isrenn Paul J Höl Nils R Gjerdet

The use of DMPS as a diagnostic tool in patients with symptoms allegedly caused by mercury from dental amalgam fillings is disputed. We have previously shown that the mercury concentrations in urine cannot be used in such a way. In the present study, we wished to evaluate the effect on blood mercury levels (B-Hg) following intravenously injected DMPS in four groups of subjects: 19 controls with...

Journal: :Australian dental journal 1986
M Darveniza

A technique for making a matrix and wedges for amalgam restoration of deep and concave gingival outlined proximal cavities is described. Two clinical situations involving concave surfaces of the maxillary first molar and premolar are illustrated. (Received for publication November 1984.)

Journal: :Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements 2012
Tore Syversen Parvinder Kaur

A concentrated review on the toxicology of inorganic mercury together with an extensive review on the neurotoxicology of methylmercury is presented. The challenges of using inorganic mercury in dental amalgam are reviewed both regarding the occupational exposure and the possible health problems for the dental patients. The two remaining "mysteries" of methylmercury neurotoxicology are also bein...

Journal: :Journal of synchrotron radiation 2008
Hugh H Harris Stefan Vogt Harold Eastgate Daniel G Legnini Benjamin Hornberger Zhonghou Cai Barry Lai Peter A Lay

Exposure to mercury from dental amalgams, with possible negative health effects, has generally been considered to occur via either erosion or evaporation directly from the surface of fillings, followed by ingestion. The aim of this study was to determine the relative importance of the direct migration of mercury through the tooth as an alternative exposure pathway. X-ray fluorescence imaging ha...

Journal: :International journal of hygiene and environmental health 2013
Rúbia Kuno Maria Helena Roquetti Kerstin Becker Margarete Seiwert Nelson Gouveia

Human biomonitoring is an important tool for the evaluation of environmental exposure to contaminants. The data that are obtained from these studies might be compared to appropriate reference values (RVs) in a specific population. The RVs were derived from the rounded values of the upper limit of the 95th confidence interval of the 95th percentile for lead (Pb), cadmium (Cd) and mercury (Hg) in...

2006
Alexander Grosu

Lakoff (1974) brought to the attention of the linguistic community a construction that seems to have triggered surprisingly little interest in the subsequent literature. The construction at issue exhibits constituents with the superficial appearance of root sentences in positions that are normally filled by DPs, APs or PPs (functioning as arguments, adjuncts, or predicates), and presumably for ...

Journal: :Journal of dental education 2015
Rosalia Rey Susan Nimmo Gail S Childs Linda S Behar-Horenstein

Dental clinicians have an expanding range of biomaterial choices for restoring tooth structure. Scientific developments in cariology, advances in dental biomaterials, and patients' esthetic concerns have led to a reduction in amalgam restorations and an increase in composite restorations. The aim of this study was to compare teaching time with students' clinical procedures in amalgam and compos...

2016
Justyna Opydo-Szymaczek

The paper presents results of the study on electrochemical potentials of metallic dental materials. Seven alloys, amalgam and chromium-nickel steel were examined as well as the effect of the solution conductivity ranging from 12.5 μS/cm to 2.01 mS/cm and solution pH within the range of 5.5 to 11.2 on electrochemical potentials of the materials. Amalgam presented with the lowest changes of the s...

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