The well being of human depends on quality of drinking water. Consumption of water containing excess fluoride over a long period of time results in fluorosis. Ramaraju et al., (2000). Investigations of Wood, (1974) showed that, the intake of fluoride is permissible upto 0.5-1.0 mg/L which is beneficial to human health. The maximum allowable concentration for fluoride in drinking water in Indian...

A study was performed to determine groundwater fluoride concentration of Posht-e-Kooh-eDashtestan area located in southern Iran. Groundwater samples were collected from 26 wells, 4 springs, during dry and wet seasons. Fluoride concentration was determined in the water samples using SPADNS method. The results showed that fluoride concentrations are above the World Health Organization (WHO) maxim...

A Geographic Information System (GIS) coupled with environmental and health data was used for the study of human exposure to fluoride in the city of San Luis Potosi (SLP). The city was divided into four different risk areas. These areas were categorized according to fluoride levels in tap water, fluoride concentrations in well water and dental fluorosis prevalence in children. Fluoride levels i...

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. Ea...

Fluoride contaminated drinking water is a global problem affecting more than 25 nations and over 200 million people globally. The present study was aimed to determine the fluoride concentration in the drinking water of certain areas of Lahore (Manga Mandi, Ali Razaabad, Nawab town, Patoki, Multan road, Judicial colony, Dubai town, Mustafa town) and its relationship to dental fluorosis. A total ...

The safety of fluoridated community water supplies for dialysate and long-term intermittent hemodialysis has been questioned since 1965 [1]. The only significant means of clearing fluoride from body fluids are renal excretion and incorporation into bone [2]. When dialysate is prepared with fluoridated water, fluoride ion moves along a concentration gradient from dialysate to blood [3, 4]. Becau...

The aim of this work was to determine the natural fluoride concentrations in public water supplies in Piauí State, Brazil, in order to identify cities in risk for high prevalence of dental fluorosis. For each city, two samples of drinking water were collected in the urban area: one from the main public water supply and another from a public or residential tap from the same source. Fluoride anal...

There is much that we know about fluoride as it relates to human health in general and dental health in particular. Some of the information that is known concerning water fluoridation and dental fluorosis is listed. What we do not know about fluoride is discussed in more detail, namely the efficacy of lower levels of fluoride in drinking water, the effect of discontinuing fluoride in drinking w...

Dental caries is the most common oral disease seen in children and adolescents. This study was conducted to assess prevalence of dental caries at different water fluoride levels in Nalgonda district of Andhra Pradesh. A total of 1800 school children aged 12-15 years were selected by stratified cluster sampling from three areas with different levels of natural fluoride concentrations in drinking...

BACKGROUND & OBJECTIVES Endemic fluorosis resulting from high fluoride concentration in groundwater is a major public health problem in India. This study was carried out to measure and compare the prevalence of dental fluorosis and dental caries in the population residing in high and normal level of fluoride in their drinking water in Vadodara district, Gujarat, India. METHODS A cross-section...