نتایج جستجو برای: fluoride concentration

تعداد نتایج: 398979  

2015
Bor-Shiunn Lee Po-Hung Chou Shu-Yu Chen Hua-Yang Liao Che-Chen Chang

There is no topically applicable low concentration fluoride delivery device available for caries prevention. This study was aimed to assess the use of a low concentration (1450 ppm) fluoride strip as an effective fluoride delivery system against enamel demineralization. The enamel surface composition and calcium-deficient hydroxyapatite or toothpaste treatments were investigated using X-ray pho...

Journal: :Journal of dental research 2005
A Maguire F V Zohouri J C Mathers I N Steen P N Hindmarch P J Moynihan

It has been suggested that systemic fluoride absorption from drinking water may be influenced by the type of fluoride compound in the water and by water hardness. Using a human double-blind cross-over trial, we conducted this study to measure c(max), T(max), and Area Under the Curve (AUC) for plasma F concentration against time, following the ingestion of naturally fluoridated hard and soft wat...

Journal: :international archives of health sciences 0
rabbani d. “social determinants of health research center” and “environmental health engineering department, health school”, kashan university of medical sciences, kashan, iran naemi e. mosavi gh.a.

aims: decayed, missing and filled teeth (dmft) index plays a key role in health care decision-making. according to who guideline, dmft should not be more than 1 in 12-year old children. the role of fluoride intake in tooth and bone health is also well known. this study was carried out to investigate the dmft index in junior high school students of golpaygan city, iran, and its relation the fluo...

2013
Ewa Kurzeja Agnieszka Synowiec-Wojtarowicz Małgorzata Stec Marek Glinka Stanisław Gawron Katarzyna Pawłowska-Góral

The results of studies on the biological influence of magnetic fields are controversial and do not provide clear answers regarding their impact on cell functioning. Fluoride compounds are substances that influence free radical processes, which occur when the reactive forms of oxygen are present. It is not known whether static magnetic fields (SMF) cause any changes in fluoride assimilation or a...

بلارک, داود , خسروی, فریده, ززولی, محمدعلی, کریم نژاد, فاطمه,

Background and purpose: Fluoride in drinking water can be either beneficial or detrimental to health depending on its concentration. Its high concentrations leads to dental and skeletal fluorosis and lesions of the endocrine glands, thyroid and liver. This paper describes the removal of fluoride from water using lemna minor. Material and methods: This research was a lab study. The lemna minor...

Background and purpose: Garlic and cinnamon extracts, like fluoride varnish, play a role in caries control due to their antimicrobial effect and controlling demineralization. This analytical laboratory study was conducted in 2021 to investigate the antimicrobial effect of garlic and cinnamon extracts compared with fluoride varnish in controlling the infection of oral Lactobacillus acidophilus a...

2013
Piyush Kant Pandey Madhurima Pandey Rekha Sharma

This research is focused on the search of a biomass for the sequestration of fluoride from drinking water. Defluoridation of water was studied by batch experiments in biosorption process. The biomass was found to reduce fluoride to permissible limit 1.5 mg/L as prescribed by WHO. The efficiency of the sorption process was investigated under different experimental parameters such as pH 7, standi...

Journal: :journal of dental biomaterials 0
hamid reza poureslami oral and dental diseases research center and kerman social determinants on oral health research center and department of pediatric dentistry, school of dentistry, kerman university of medical sciences, kerman, iran razieh hoseinifar department of operative dentistry, school of dentistry, kerman university of medical science. kerman, iran payam khazaeli school of pharmacology, kerman university of medical sciences, kerman, iran reihaneh hoseinifar department of pediatric dentistry, school of dentistry, northern khorasan university of medical sciences, bojnord, iran hamid sharifi hiv/sti surveillance research center, and who collaborating center for hiv surveillance, institute for futures studies in health, kerman university of medical sciences, kerman, iran parnian poureslami school of dentistry, mashhad university of medical sciences, mashhad, iran

statement of problem: the casein phospho peptide-amorphous calcium phosphate with or without fluoride (cpp-acpf and cpp-acp respectively) are of considerably new materials which are highly recommended for prevention of dental caries. however, there is a shortage in literature on how they affect the ion concentration of saliva or dental plaque. objectives: the aim of this study was to evaluate t...

2011
Masoumeh Moslemi Zahra Khalili Soraya Karimi Mohammad Mostafa Shadkar

BACKGROUND AND AIMS As a result of poor quality of public water supply in many countries, people have recently turned to bottled water consumption, the fluoride content of which is not generally consistent among different brands. This study sought to measure the fluoride concentration of public water supply in comparison with commercial brands of min-eral bottled water available in Tehran, Iran...

2016
R. Hema Krishna

The review of this article is focusing on role of chemical nature of fluoride on human health and environment. Fluoride has both positive and negative effects on human health and environment. However this positive effect is felt when the fluoride concentration is low. At higher concentration the negative affects of fluoride far out way its positive effects. Millions of people all over the world...

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