Resistance to mercury and antimicrobial agents in Streptococcus mutans isolates from human subjects in relation to exposure to dental amalgam fillings.
نویسندگان
چکیده
Resistance to cefuroxime, penicillin, tetracycline, and mercury is reported for 839 Streptococcus mutans isolates from 209 human study subjects. The MICs of these drugs did not differ for isolates from one dental amalgam group and two nonamalgam subsets: a group with no known exposure to amalgam and a group whose members had their amalgam fillings removed.
منابع مشابه
Mercury released from dental "silver" fillings provokes an increase in mercury- and antibiotic-resistant bacteria in oral and intestinal floras of primates.
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...
متن کاملتجمع جیوه در مو و ناخن انسان: آمالگام دندانی به عنوان فاکتور اصلی مواجهه
Background: Dental amalgam, a mixture of approximately 50% mercury with silver, tin, zinc and copper in varying ratios, is a major source of mercury pollution in the general population not occupationally exposed. The toxicity of mercury is enhanced because it is so readily absorbed, with around 90-100% of mercury vapor being absorbed through the oral mucosa. The aim of the current study is to e...
متن کاملIncreased Release of Mercury from Dental Amalgam Fillings due to Maternal Exposure to Electromagnetic Fields as a Possible Mechanism for the High Rates of Autism in the Offspring: Introducing a Hypothesis
According to the World Health Organization (WHO), factors such as growing electricity demand, ever-advancing technologies and changes in social behaviour have led to steadily increasing exposure to man-made electromagnetic fields. Dental amalgam fillings are among the major sources of exposure to elemental mercury vapour in the general population. Although it was previously believed that low ...
متن کاملتأثیر امواج میکروویو تابشی از تلفن‌های همراه بر آزادشدن جیوه از ترمیم آمالگام‌های دندانی
Background and Aim: Mercury or Hydrargyrum (Hg) is the most non-radioactive toxic element known. Dental amalgam is made up of 50% mercury.. Electromagnetic fields may increase the emission of mercury from dental amalgam fillings. It was thus aimed to study the effects of electromagnetic fields of mobile use on the level of mercury released from dental amalgam restorations. Materials and Methods...
متن کاملبررسی میزان جیوه ادرار دندانپزشکان شهر تهران و عوامل مؤثر بر آن
Background and Aim: Dentists are exposed to mercury from dental amalgam in their routine occupational practice. Excess exposure to mercury is harmful and the measurement of mercury content of urine is a reliable and valid assessment of the level of mercury exposure from dental amalgam. The aim of this study was the measurement of urine mercury in dentists of Tehran and assessment of some possib...
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ورودعنوان ژورنال:
- Antimicrobial agents and chemotherapy
دوره 44 2 شماره
صفحات -
تاریخ انتشار 2000