نتایج جستجو برای: phate fluoride

تعداد نتایج: 20376  

Journal: :Pediatric dentistry 1979
J S Wefel S H Wei

The in vitro fluoride uptake by dental enamel from two conventional acidulated phosphate fluoride gels was compared to a thixotropic acidulated phosphate fluoride gel. The fluoride concentration and enamel biopsy depths were determined using an acid-etch biopsy method based on calcium determinations. A significant fluoride uptake by dental enamel from a thixotropic topical fluoride agent follow...

Journal: :Caries research 2016
Svante Twetman Mette K Keller

AIM The aim of this conference paper was to systematically review the quality of evidence and summarize the findings of clinical trials published after 2002 using fluoride mouth rinses, fluoride gels or foams for the prevention of dental caries. METHODS Relevant papers were selected after an electronic search for literature published in English between 2003 and 2014. The included papers were ...

Journal: :Caries research 2001
M Haftenberger G Viergutz V Neumeister G Hetzer

There have only been few investigations comparing total fluoride intake and the fluoride proportion excreted in urine in pre-school children. In addition, the results of available studies are conflicting. Total fluoride intake was assessed in 11 healthy children aged 3-6 years on 2 consecutive days and urinary fluoride excretion was determined. The duplicate-diet approach was used for the asses...

Journal: :Journal of public health dentistry 1990
S M Szpunar B A Burt

Recent trends in the prevalence of dental caries in children, as well as a possible increase in the prevalence of dental fluorosis, have prompted some researchers to suggest the reassessment of water fluoride concentration standards. Instead of reducing water fluoride concentrations, an alternative approach would be to limit the use of, or reduce the fluoride concentration of, dentifrices, mout...

Journal: :Regulatory toxicology and pharmacology : RTP 2005
Bradley W Schwab Eileen P Hayes Janice M Fiori Frank J Mastrocco Nicholas M Roden David Cragin Roger D Meyerhoff Vincent J D'Aco Paul D Anderson

The detection of low levels of pharmaceuticals in rivers and streams, drinking water, and groundwater has raised questions as to whether these levels may affect human health. This report presents human health risk assessments for 26 active pharmaceutical ingredients (APIs) and/or their metabolites, representing 14 different drug classes, for which environmental monitoring data are available for...

اجلالی, آیدا, تقی‌پور, حسن, خشابی, احسان,

Received: 25 Aug, 2015 Accepted: 26 Oct , 2015 Abstract Background & Aims: Access to safe drinking water is important in health and development at national, regional and local levels. The concentration of fluoride in drinking water is highly variable, depending on the individual geological environment from which the water is obtained. Fluoride is an essential microelement for human health...

امام جمعه, محمد مهدی, تاری, کامران, حاج عظیمان, یگانه, صفری واریانی, علی, علیجانی, محمد حسین,

Background and purpose: Fluoride is a major mineral pollutant in groundwater. Long-term exposure to high concentration of fluoride in drinking water causes dental fluorosis, skeletal and non-skeletal fluorosis. Therefore, highly efficient water treatment that could lower the concentration of fluoride in groundwater is a challenge. This study aimed at evaluating the efficiency of Nanofiltration ...

Journal: :Journal of dental research 1992
B A Burt

Fluorosis prevalence has increased in North America since the 1930's-1940's. It may also have increased since 1970, though the evidence for that is less clear. Continued monitoring will help determine whether increased fluorosis prevalence in children in the United States is a cohort effect from the 1970's. This review considers the evidence for an increase in fluoride ingestion from all source...

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