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What about dental fluorosis?

Fluorosis-underdevelopment or hypomaturation tooth enamel and dentin, produced chronic ingestion of large amounts of fluoride in the period when the teeth are developing. The main cause of fluorosis is the consumption of water with high content of fluorine, newborn and child during the first six years of life. Although both primary and permanent teeth can be affected by fluorosis, and under uniform conditions, the presence of fluoride fluorosis, as a rule, more in permanent teeth than in primary teeth. This discrepancy may be caused by the fact that a large part of mineralization of milk teeth occurs before birth, the placenta is a barrier to the transfer of high concentrations in the plasma of fluoride from a pregnant mother to her developing fetus, controlling, thus, to some extent, delivery of fluoride in developing milk bite. Another reason may be that in the period of formation of enamel for milk teeth shorter than for permanent teeth, and that the milk teeth enamel is thinner than in permanent teeth.

Interest in fluorosis has increased over the last 10 years, not only in areas such as India and Kenya, where there are communities with a high level of development of fluorosis associated with a high concentration of fluoride in the water, but in temperate latitudes with optimal or low fluoridated water supplies, where the concentration of fluoride uptake from other sources, in particular fluoride supplements and toothpaste with fluoride, in early infancy, has led to an increase in the prevalence of spotting enamel. In connection with reduction of caries, the following fluoride therapy, increasing attention is now given levels of fluorosis. In a sense, the story turns into a full circle, because the history of water fluoridation really started with trying to find out why what?Colorado spot` in the early 1900's. In the last 10 years the number of employees paying attention to the possibility of increasing the prevalence of dental fluorosis. For example, Osuji and Nikiforuk (1988), available in two cases that are exhibited classic fluorosis in permanent dentition, both of which received more fluorine additives than the recommended dose schedules. First received 0.5 mg F/day, starting with infancy and 1.0 mg F/day in age from 2 to 6 years in the field, which has a natural water fluoride concentrations of 0.42 ppm. The second case has received 1.0 mg F/day from birth to 7 years, in an area of natural water fluoride concentration of 0.1 ppm F.'riordan (1993)called for the revision of the existing recommendations concerning fluoride supplements to reduce the risk of fluorosis. He suggested that fluoride supplements should be directed only in identified high caries people from risk groups, and should begin at the age of 6 months or later. Pang and baths (1992) the NIDR sponsor of the international seminar on the?change patterns of systematic consumption of fluoride", where it was decided that the accidental ingestion of toothpaste can be a cause of increased dental fluorosis in children...

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