نتایج جستجو برای: mercury amalgam

تعداد نتایج: 43944  

ژورنال: مجله دندانپزشکی 2007
حسنی طباطبائی, معصومه , شریعتی, بتول , گلبابائی, فریده ,

Background and Aim: Dental Amalgam is a common restorative material for posterior teeth. Because of Hg content in the composition of amalgam, during the handling of material, mercury may release as vapor in the environment. Excess amount of mercury vapor can cause serious health problems in dental personnel. The aim of this investigation was to determine mercury vapor concentration in working e...

ژورنال: مجله دندانپزشکی 2007
  عبدالصمدی, حمیدرضا,  عصاری, محمد جواد , عرب زاده, سوما , مانی کاشانی, خسرو , کسرایی, شاهین ,

Background and Aim: Nowadays, esthetic dentistry has become an important part of modern dentistry. Bleaching is considered as a conservative, safe and effective way for treatment of discolored teeth. Although bleaching is commonly used on anterior teeth, the bleaching gel may come into contact with patient's former amalgam restorations and result in corrosive effects, dissolution of amalgam pha...

Journal: :The Journal of prosthetic dentistry 2001
B I Cohen B Penugonda

STATEMENT OF PROBLEM The use of dental amalgam as a direct restorative material has been a subject of controversy for many years. The potential safety of amalgam has been questioned because of leakage of elements such as mercury, copper, tin, and silver. PURPOSE This study evaluated the elemental leaching from Tytin dental amalgam placed in deionized water for 2 months. Both mercury vapor and...

Journal: :Brazilian oral research 2008
Flávia Godoy Iano Ovídio dos Santos Sobrinho Thelma Lopes da Silva Marlus Alves Pereira Paulo Jorge Moraes Figueiredo Leny Borghesan Albertini Alberguini José Mauro Granjeiro

Mercury, as any other heavy metal, may cause environmental damages due to its accumulation and biotransformation. Dental offices, whether private or institutional, use dental amalgam as a restorative material on a daily basis. Dental amalgam is composed of mercury (50%), silver (30%) and other metals. Approximately 30% of the amalgam prepared in dental offices (0.6 g per capsule) are wasted and...

Journal: :Antimicrobial agents and chemotherapy 1993
A O Summers J Wireman M J Vimy F L Lorscheider B Marshall S B Levy S Bennett L Billard

In a survey of 640 human subjects, a subgroup of 356 persons without recent exposure to antibiotics demonstrated that those with a high prevalence of Hg resistance in their intestinal floras were significantly more likely to also have resistance to two or more antibiotics. This observation led us to consider the possibility that mercury released from amalgam ("silver") dental restorations might...

Journal: :The international journal of occupational and environmental medicine 2014
S M J Mortazavi M Neghab S M H Anoosheh N Bahaeddini G Mortazavi P Neghab A Rajaeifard

Mercury is among the most toxic nonradioactive elements which may cause toxicity even at low doses. Some studies showed release of mercury from dental amalgam fillings in individuals who used mobile phone. This study was conducted to assess the effect of high-field MRI on mercury release from dental amalgam filling. We studied two groups of students with identical tooth decays requiring a simil...

2016
B. Priyanka Shenoy Subash Sharma

Aim: To review the release of mercury from the amalgam restorations and its effects on health. Objective: The main objective of the review is to analyse the various causes for the release of mercury and the amount of mercury released from restorative procedures and its intensity of toxicity that causes various significant hazards to the health of an individual. Background: Amalgam is one of the...

2007
Jaro Pleva

This report is a critical evaluation of the use of dental amalgam with special consideration of the possibility of chronic mercury poisoning. The description of psychic and somatic symptoms associated with corrosion of amalgam might help people with similar symptoms to recognize the possible source of their problems. Medical practitioners need to recognize the characteristic manifestations of m...

ژورنال: طب کار 2019

Introduction: dentists are exposed to mercury vapor due to occupational exposure to amalgam Which can endanger their health. the aim of this study was to measure the concentration of urinary mercury in dental students and the restorative specialists one of the dental schools in Iran in order to determine the effect of mercury vapor on them. Methods: The study population Including 40 dental stu...

Journal: :Advances in dental research 1992
D Arenholt-Bindslev

Increasing knowledge about the risk of toxic effects caused by anthropogenic mercury accumulation in ecosystems has resulted in a growing pressure for reduction of the discharge of mercury waste. Consequently, the mercury waste problems of dental clinics have been given increased attention, and restrictions on handling and discharge of contaminated waste have been established in several countri...

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