نتایج جستجو برای: fluoride in water

تعداد نتایج: 17085027  

2017
Kerton R. Victory Nolan L. Cabrera Daniela Larson Kelly A. Reynolds Joyce Latura Cynthia A. Thomson Paloma I. Beamer

BACKGROUND Compared to the general United States (U.S.) population, Arizona counties along the U.S.-Mexico border have a higher prevalence of dental caries, which can be reduced with adequate fluoride exposure. Because of concern regarding local tap water quality, fluoride-free bottled water consumption is common in this region, raising concern that families are not receiving adequate fluoride ...

2013
Nelly Molina Frechero Leonor Sánchez Pérez Enrique Castañeda Castaneira Anastasio Oropeza Oropeza Enrique Gaona José Salas Pacheco Ronell Bologna Molina

Fluoride is ingested primarily through consuming drinking water. When drinking water contains fluoride concentrations>0.7 parts per million (ppm), consuming such water can be toxic to the human body; this toxicity is called "fluorosis." Therefore, it is critical to determine the fluoride concentrations in drinking water. The objective of this study was to determine the fluoride concentration in...

Journal: :iranian journal of public health 0
ramesh nagarajappa dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india. piyush pujara dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india. archana j sharda dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india. kailash asawa dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india. mridula tak dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india. pankaj aapaliya dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india.

long-term ingestion of large amounts of fluoride can lead to potentially severe skeletal problems and neurological consequences. the study was conducted to assess and compare intelligence quotient of children living in high and low fluoride areas in kutch, gujarat, india.a cross-sectional descriptive survey was conducted among 100 school children aged 8 to 10 years, living in kutch district, gu...

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2007
Marie Ludlow Grant Luxton Timothy Mathew

Research on the effects of fluorides on oral health has been in existence for almost a century. Following the observation that communities with naturally fluoridated drinking water had a lower incidence of tooth decay, many developed countries initiated artificial water fluoridation programmes, whereby fluoride is added to the reticulated water supply, such that it reaches approximately one par...

Nouraddin Mousavinasab Zabihollah Yousefi, Zeinab Tahernezhad

The purpose of present study was to evaluate fluoride, nitrate, iron, manganese and total hardness in drinking water of wells and reservoirs in Fereidonkenar, Mazandaran, Northern Iran and compare the results with national and international standards. This cross-sectional descriptive study was carried out on data during five years from the spring of 2008 until the autumn of 2013. Studies were p...

Journal: :مجله انسان، محیط زیست و ارتقاء سلامت 0
khalilollah moeinian department of environmental health environmental health engineering, school of public health, semnan university of medical sciences, semnan, iran mohammad reza mehrasbi department of environmental health, zanjan university of medical sciences, zanjan iran hassan hassanzadazar department of public health food department of food safety and hygiene, school of public health, zanjan university of medical sciences, zanjan, iran koorosh kamali department of public health, school of public health, zanjan university of medical sciences, zanjan, iran.. elaheh rabiei department of public health food safety health, zanjan university of medical sciences, iran.

background; fluoride is an essential nutrient for the human body. the major routes of fluoride intake include food and drinking water, though the absorption of fluoride from food is much easier. the aim of this study was to evaluate the amount of fluoride in the soil and tomato and onion crops on farms of zanjan. methods; three farms of each crop (tomato and onion) were selected randomly. each ...

ژورنال: طلوع بهداشت یزد 2014
آخوندزاده, بنت الهدی, احرامپوش, محمد حسن , قانعیان, محمد تقی , محب راد , بتول ,

Abstract Introduction:Fluoride is one of the essential elements for human health and presence of its acceptable value prevents from tooth decay but excessive absorption of fluorine into the body cause many chronic problems such as flourosis. The aim of this study was to evaluate the effect of &alpha-Alumina and &gamma -Alumina on removal of fluoride from water. Methods: This experimental ...

2017
Jovine Malago Alfred N. N. Muzuka

Fluoride has been reported to be among natural pollutant of water in Africa. High fluoride levels beyond the recommended World Health Organization limit of 1.5 mg/l has been observed in various Africa countries. However, the information is scattered in different publication medium. Therefore, objective of this work was to put together the information on fluoride levels in surface and groundwate...

ژورنال: Archives of Hygiene Sciences 2015
Ahmadpour, Mohammad, Daraei, Hiua, Kamani, Hossein, Mirzaei, Nezam, Yari, Ahmad Reza, , , Fouladi Fard, Reza ,

Background: Consumption of bottled waters has received popularity and more acceptances. Fluoride is necessary for human life. But high levels of fluoride can cause some problems for human health such as Fluorosis and teeth and bones problems. The aim of this study is measure the fluoride content in bottled waters consumed in North West of Iran and comparison with the amount listed on their ...

Journal: :Archives of family medicine 2000
J A Lalumandier L W Ayers

CONTEXT Bottled water has become a status symbol and is frequently used in place of tap water. While both waters are considered safe to drink, is either more beneficial in preventing tooth decay and is there a difference in purity? OBJECTIVE To determine the fluoride level and bacterial content of commercially bottled waters municipal tap water and to compare the results. DESIGN Comparative...

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