It is not well understood by the general population how fluoride affects the teeth. This naturally occurring element has a beneficial effect on teeth via several modes of operation. To appreciate this we must understand that tooth enamel is a crystalline structure composed of various elements, primarily calcium. There are voids in the molecules which can accept any available fluoride ions, and in so doing strengthen the enamel structure. In a young child, if fluoride is present in the water supply or in a vitamin supplement, it becomes incorporated into the developing enamel, making it stronger and more resistant to decay. Fluoride mineral supplements are available by prescription from the dentist through your local pharmacy. They can be administered from birth until all the permanent teeth have erupted. There are regions in the continental United States and elsewhere in the world where fluoride is present in the well water, and inhabitants of these areas have a significantly reduced incidence of tooth decay.

Another mechanism of fluoride is through the topical, or surface application available at the dentist office. The fluoride actually penetrates the surface enamel to some degree, making it more resistant to caries. This procedure is routinely performed on children up through the teenage years, and even on some adults who have a high incidence of tooth decay. There are also over-the-counter fluoride rinses for home use, which are beneficial.

Lastly, it is a fact that fluoride also acts as an enzyme inhibitor which prevents oral bacteria from metabolizing sugar and other carbohydrates into the acid that causes cavities. This is why it is added to toothpaste, and should be a consideration when purchasing a dentifrice. Also, one of the only sources of fluoride in the diet is in black or green tea.

Some municipalities and fluoride to the water supply at a concentration of 1 ppm. This causes a substantial reduction in tooth decay in those communities. There are those who oppose this practice, but fail to consider that this mineral occurs naturally in much higher concentrations with no ill health effects. Concentrations greater than the therapeutic dose may cause discoloration of the teeth, but this does not occur when administered clinically or via the municipal water supply. Fluoride has a proven track record of reducing tooth decay and improving dental health.

This article brought to you by the

Soldotna Dental Clinic

262-4989