نتایج جستجو برای: fluoride

تعداد نتایج: 20231  

2014
P. C. Mishra S. K. Sahu A. K. Bhoi S. C. Mohapatra

Crop field soil collected from Sambalpur University campus of Odisha and treated with various fluoride concentrations was used to raise selected local crops. Background concentration of total and leachable fluoride content in soil was 95.19 and 8.89 ppm respectively. At the time of harvest of the crops, the total fluoride content was found to decrease and leachable fluoride content was found to...

Journal: :journal of dentistry, tehran university of medical sciences 0
b seraj associate professor, dental research center and department of pediatric dentistry, dental school, tehran university of medical sciences, tehran, iran. m shahrabi m shadfar r ahmadi m fallahzadeh h farrokh eslamlu

prolonged excessive intake of fluoride during child's growth and development stages has been associated with mental and physical problems. the aim of this study was to investigate the effect of excessive fluoride intake on the intelligence quotient (iq) of children living in five rural areas in makoo/iran.in this cross-sectional study, 293 children aged 6-11 years were selected from five villag...

Journal: :iranian journal of public health 0
hossein faraji school of public health, tehran university of medical sciences, tehran, iran. ali akbar mohammadi dept. of environmental health engineering, neyshabur university of medical sciences, neyshabur, iran. behrouz akbari-adergani water safety research center, food and drug organization, ministry of health and medical education, tehran, iran. naimeh vakili saatloo school of public health, tehran university of medical sciences, tehran, iran. gholamreza lashkarboloki health care center, ministry of health and medical education, bandar gaz, iran. amir hossein mahvi school of public health, tehran university of medical sciences, tehran, iran ; center for solid waste research, institute for environmental research, tehran university of medical sciences, tehran, iran.

fluoride is an essential element for human health. however, excess fluoride in drinking water may cause dental and/or skeletal fluorosis. drinking water is the main route of fluoride intake. the aim of the present study was to measure fluoride levels in human breast milk collected from two regions of golestan province, northern iran with different amount of fluoride concentration of drinking wa...

Journal: :international journal of environmental research 2010
a. rahmani j. nouri s. kamal ghadiri a.h. mahvi r. zarem

besides human dental and skeletal fluorosis, drinking water above permissible levels of fluoride is known to cause a wide range of adverse health effects. in this study, the adsorption of fluoride from aqueous solution onto pretreated zeolite has been studied by using batch test. the large surface area of natural zeolite (i. e., clinoptilolite from miyaneh region, iran) was utilized to create a...

2009
Kelly Polido Kaneshiro Olympio Vanessa Eid da Silva Cardoso Maria Fernanda Borro Bijella Juliano Pelim Pessan Alberto Carlos Botazzo Delbem Marília Afonso Rabelo Buzalaf

OBJECTIVE This study evaluated the bioavailability of fluoride after topical application of a dual-fluoride varnish commercially available in Brazil, when compared to Duraphat. MATERIAL AND METHODS The urinary fluoride output was evaluated in seven 5-year-old children after application of the fluoride varnishes, in two different phases. In the first phase (I), children received topical applic...

Journal: :European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry 2011
M C Vitale D Zaffe A R Botticell C Caprioglio

AIM To evaluate chemically the effects of diode laser on fluoride uptake before and after laser irradiation of enamel surfaces. METHODS Crowns of 20 sound human teeth were halved and a 3 x 3 mm acid-resistant varnish uncovered window left for: A) no treatment; B) fluoride (Elmex gel); C) diode (fluoride + diode laser); D) diode (diode laser + fluoride). The dental surfaces were analysed using...

حسین شریعتمداری, , نوراله میرغفاری, ,

Concentration of soluble fluoride in groundwater, soil, and some crops in Isfahan region was determined by Ion Selective Electrode (ISE) method. The mean fluoride concentration of water samples in the study area was 0.3 and 0.05 mg L-1 in the spring and summer, respectively. These values are in an acceptable limit for irrigation, whereas for drinking water, they are in deficiency range. The ave...

Background & Aim: Fluoride concentration in drinking water within the optimal range reduces dental caries and prevents dental fluorosis. This study was conducted to determine the level of fluoride in drinking water resources in Torbat Heydariyeh City in 2016-17. Methods: This descriptive cross-sectional study was conducted on 22 wells used to supply drinking water of Torbat Heydariyeh City. A ...

Journal: :Paediatrics & child health 2002
J Godel

The introduction of fluoride to drinking water in 1958 resulted in a dramatic reduction of dental caries [1]. Subsequently, fluoride supplements were advocated for children whose water was not fluoridated, and now almost all toothpaste contains fluoride. The result is that multiple sources of fluoride, such as fluoridated toothpastes, fluoride supplements (drops and lozenges) and naturally occu...

Journal: :international journal of occupational and environment medicine 0
ak susheela fluorosis foundation of india, india nk mondal fluorosis foundation of india, india a singh hindalco industries ltd., po-renukoot, district sonebhadra (up), india

background: fluoride is used increasingly in a variety of industries in india. emission of fluoride dust and fumes from the smelters of primary aluminum producing industries is dissipated in the work environment and poses occupational health hazards. objective: to study the prevalence of health complaints and its association with fluoride level in body fluids of smelter workers in a primary alu...

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