Water bacteriological quality of cistern water in rural areas of Agh-ghala and Bandar Torkman, northeast Iran, 2008

Abstract

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 ambient air temperature. In general, standard level of fluoride in drinking water in winter, mainly due to less water consumption, is high, and in summer, due to more consumption of water, is not remarkable.