نتایج جستجو برای: mercury amalgam

تعداد نتایج: 43944  

Journal: :Journal 2002
Albert O Adegbembo Philip A Watson Stanley J Lugowski

OBJECTIVE To determine the amount of amalgam entering the waste stream during removal of dental amalgam restorations. METHODS Dental amalgam restorations were removed from anatomic replica teeth and natural teeth by means of a tungsten carbide bur, a high-speed handpiece and a conventional suction system. The weight of amalgam particles trapped in the primary and secondary solids separators w...

Journal: :Journal of Ayub Medical College, Abbottabad : JAMC 2011
I Kefi A Maria Z Majid J Sana M Afreen M Fareed A Feroze H Sajid S Adel A Iftikhar A Yawer M Kaleem

BACKGROUND Silver dental amalgam is one of the oldest filling materials used in dentistry. The American Dental Association (ADA) has estimated that billions of amalgam restorations have been placed in patients in the last 150 years. Due to the presence of mercury and mishandling during the filling make it more controversial. The objective of this study was to conduct a survey of the use of diff...

Abbas Esmaili-Sari, Narjes Okati, Seyed Mahmoud Ghasempouri,

Background: Mercury (Hg) is a hazardous metal responsible for environmental contamination and human intoxication. Methyl mercury bio-accumulation through food chain can be responsible for chronic mercury exposure of South Caspian Sea communities with a diet rich in fish. Uncertainties about exposure levels that could have damaging consequences for nervous system development of infants makes b...

Journal: :iranian journal of toxicology 0
سید محمود قاسم پوری seyed mahmoud ghasempouri department of environment, faculty of natural resources and marine sciences, tarbiat modares university, nour, iran نرجس اوکاتی narjes okati department of environment, faculty of natural resources, zabol university,zabol , iran عباس اسماعیلی ساری abbas esmaili-sari department of environment, faculty of natural resources and marine sciences, tarbiat modares university, nour, iran

background: mercury (hg) is a hazardous metal responsible for environmental contamination and human intoxication. methyl mercury bio-accumulation through food chain can be responsible for chronic mercury exposure of south caspian sea communities with a diet rich in fish. uncertainties about exposure levels that could have damaging consequences for nervous system development of infants makes bio...

Journal: :Journal of Occupational Medicine and Toxicology (London, England) 2008
BE Moen BE Hollund T Riise

BACKGROUND Dental assistants help the dentist in preparing material for filling teeth. Amalgam was the filling material mostly commonly used in Norway before 1980, and declined to about 5% of all fillings in 2005. Amalgam is usually an alloy of silver, copper, tin and mercury. Copper amalgam, giving particularly high exposure to mercury was used in Norway until 1994. Metallic mercury is neuroto...

Journal: :Environmental research 2008
James S Woods Michael D Martin Brian G Leroux Timothy A DeRouen Mario F Bernardo Henrique S Luis Jorge G Leitão John V Kushleika Tessa C Rue Anna M Korpak

Mercury is toxic to the kidney, and dental amalgam is a source of mercury exposure. Few studies have evaluated the effects of dental amalgam on kidney function in a longitudinal context in children. Here, we evaluated urinary concentrations of glutathione S-transferases (GSTs) alpha and pi as biomarkers of renal proximal and distal tubular integrity, respectively, and albumin as a biomarker of ...

Background and Aim: Amalgam is used in dentistry cautiously, due to the toxicity of mercury in dental amalgam. Dentists are exposed to mercury vapor in their routine occupational practice, which can be harmful to their health. The aim of the present study was to measure urinary mercury concentrations in general dentists and restorative specialists in Mashhad in 2010. Materials and Methods: This...

2016

available from: http://jdr.sagepub.com/content/68/5/780.short. Accessed December 18, 2015. 68 Summers AO, Wireman J, Vimy MJ, Lorscheider FL, Marshall B, Levy SB, Bennet S, Billard L. Mercury released from dental ‘silver’ fillings provokes an increase in mercuryand antibioticresistant bacteria in oral and intestinal flora of primates. Antimicrob Agents and Chemother. 1993; 37(4): 825-834. Avail...

Journal: :International journal of toxicology 2003
Amy S Holmes Mark F Blaxill Boyd E Haley

Reported rates of autism have increased sharply in the United States and the United Kingdom. One possible factor underlying these increases is increased exposure to mercury through thimerosal-containing vaccines, but vaccine exposures need to be evaluated in the context of cumulative exposures during gestation and early infancy. Differential rates of postnatal mercury elimination may explain wh...

2003
Amy S. Holmes Mark F. Blaxill Boyd E. Haley

Reported rates of autism have increased sharply in the United States and the United Kingdom. One possible factor underlying these increases is increased exposure to mercury through thimerosal-containing vaccines, but vaccine exposures need to be evaluated in the context of cumulative exposures during gestation and early infancy. Differential rates of postnatal mercury elimination may explain wh...

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