نتایج جستجو برای: fluoride

تعداد نتایج: 20231  

Journal: :iranian journal of toxicology 0
محمد نوری سپهر mohammad noori sepehr department of environmental health engineering, karaj university of medical sciences, karaj, iran هدی امیری hoda amiri department of environmental health engineering, karaj university of medical sciences, karaj, iran

background: the existence of fluoride ion in potable water has distinctive effects on human health. fluoride is attracted by positively charged calcium in teeth and bones due to its strong electro-negativity which results in dental, skeletal, and non-skeletal forms of xuorosis and associated health complaints in children as well as adults. methods: water samples from groundwater used for drinki...

Fluoride is now accessible in a variety of forms, including water, toothpaste, mouth rinses, and professional fluoride therapy at dental clinics. A body of data supports the use of systemic and topical fluoride from various sources to prevent dental caries. Fluoride ions are absorbed by the enamel prior to tooth eruption and produce fluorohydroxyapatite, which is more resistant to acid attack t...

2014
Clifton M Carey Erin C Holahan Burton D Schmuck

Previous reports found that some fluoride-containing dentifrices do not release effective concentrations of fluoride during brushing. Failure to release fluoride can be due to dentifrice matrix components that interfere with the solubilization of the fluoride salts during brushing. A new generation of dentifrices has the capability to precipitate beneficial fluoride salts during tooth brushing....

Journal: :iranian journal of health sciences 0
lida rafati ph.d student of environmental health, shahidsadoughiunivercity of medical sciences. yazd, iran&vice-chancellor for health, hamadan university of medical sciences, iran mehdi mokhtari department of environmental health engineering, school of public health, shahidsadoghi university of medical sciences, yazd, iran fatemeh fazelinia m.s.c environmental health department of health, arak university of medical sciences, iran seyedmojtaba momtaz department of environmental health engineering, school of public health, shahidsadoghi university of medical sciences, yazd, iran amir hossein mahvi school of public health & center for solid waste research, institute for environmental research & national institute of healthresearch tehran university of medical sciences, tehran, iran.

background and purpose: fluoride is one of the drinking water contaminants regulated by epa. this ion, in low doses in the mouth reduces tooth decay without health risk and at much higher doses causes health complications and can be toxic. the major sources of exposure to fluoride are drinking water, food, dental products, and pesticides. the biggest contributor to exposure for most people in i...

Journal: :آب و خاک 0
مریم محسنی سجادی مجید افیونی حسین خادمی سید اسداله محسنی موحد شمس اله ایوبی

abstract fluoride (f-) is an essential element for human and some animals. the fluoride concentration in irrigation water is an important index for water quality. the objective of the present study was to determine spatial variability of fluoride in groundwater and soils of some areas in arak plain. therefore, during two seasons, autumn (2007) and the end of spring (2008), 87 and 92 water sampl...

ژورنال: مجله دندانپزشکی 2006
آخوندی, نسرین , سراج, بهمن , شهرابی, مهدی , فلاح‌زاده, فرناز , فلاح‌زاده, محمد ,

Background and Aim: Human and animal studies linking fluoride with diminished intelligence have been published. Although adverse effects of high intake of fluoride on intelligence and mental acuity continue to be reported, they are still controversial. The aim of this research was to investigate the relationship between fluoride in drinking water and children's intelligence. Materials and Metho...

Journal: :international archives of health sciences 0
a.i. amouei post address: departmental of environmental health engineering, babol university of medical sciences, ganjafrouz street, babol, iran h. faraji deputy of health services, babol university of medical sciences, babol, iran a. khalilpour environmental health research center, babol university of medical sciences, babol, iran s.h. fallah environmental health research center, babol university of medical sciences, babol, iran h.a. asgharnia environmental health research center, babol university of medical sciences, babol, iran

abstract aims: fluoride is one of the anions present in soil and water, and determining its level in drinking water is vital for preventing dental and bone diseases in societies. this research aimed to determine fluoride concentrations in drinking water sources of rural and urban areas of babol city, iran. instrument & methods: this descriptive cross-sectional study was conducted in babol city,...

Journal: :dental research journal 0
sayed mostafa mousavinasab ian meyers

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: to measure the amounts of fluoride released from fluoride-containing materials, four glass ionomer cements (fuji ix, fuji vii, fuji ix extra and fuji ii lc), a compomer (dyract extra) and a giomer (beautifil) were used in this study . methods: twenty cylindrical specimens were prepared from each material. the a...

ژورنال: مجله دندانپزشکی 2000
رشیدیان, علی , محمودیان, ژاله , کوثری, علی ,

The purpose of this study was to assess the fluoride release of three fluoride- containing materials exposed to fluoride solutions. This study compared the initial fluoride release and release following re-fluoridation (neutral or acidic 2% NaF) of three different filling materials, conventional glass ionomer cement (CG1C), resin- modified glass ionomer cement (RMGIC), polyacid- modified compos...

Journal: :jundishapur journal of health sciences 0
mohammad ali zazuli department of environmental health, school of health and research centre of health sciences, mazandaran university of medical sciences, sari, ir iran nour mohammad beyramnezhad department of environmental health, school of health and research centre of health sciences, mazandaran university of medical sciences, sari, ir iran nour mohammad beyramnezhad department of environmental health, school of health and research centre of health sciences, mazandaran university of medical sciences, sari, ir iran ghorban mohammad onagh health centre of bandar torkman, mazandaran university of medical sciences, bandar torkman, ir iran yousof kor health centre of bandar torkman, mazandaran university of medical sciences, bandar torkman, ir iran mahmoud taghavi department of environmental health, school of health and research centre of health sciences, mazandaran university of medical sciences, sari, ir iran

fluoride is one of the most important elements in the composition of teeth and bones. this element can enter the body via different ways. however, drinking water is the most important way to receive fluoride by a lot of people. an increase in fluoride level in the body causes dental fluorosis and its absence leads to teeth decay. standard rate of fluoride in drinking water is determined by the ...

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