Fluoridation

Finally the tooth surfaces are fluoridated with a special solution or varnish in order to prevent caries. Fluorides promote the redeposition of enamel components in the teeth (remineralisation) and protect the enamel against acid attack in the mouth. More highly concentrated fluoride preparations (fluoride gels, for example) harden the teeth over the long term and increase protection against caries (http://www.dgzmk.de). Ask at your dental practice which fluoridation agent is the right one for you

In small children and babies, fluoride likewise provides effective protection against caries. The concentration depends on age, however, and overdosing must be avoided, as it can cause white marks on the enamel (dental fluorosis)

Fluoride protects against caries

The particular properties of fluoride are what make it so important in preventing caries. It strengthens the redeposition of minerals in the enamel and makes the enamel less sensitive to acids. Whether it is sodium fluoride, potassium fluoride or another fluorine compound plays a minor part. Fluorides can be brought into the mouth through fluoridated table salt, fluoride toothpaste, fluoride tablets, fluoridated mouth rinses, fluoride gels and varnishes, and achieve the desired effect there. Continuous use is needed for a lasting effect

The caries-inhibiting effect comes about through direct contact between the fluoride and the enamel. What matters is the presence of sufficient quantities of fluoride in the mouth, and only after the tooth has erupted. Thirty years ago, by contrast, it was thought that fluoride developed its protective effect before eruption. Prevention was therefore carried out mainly with fluoride tablets in age-appropriate doses, for infants and small children up into school age

Today, by contrast, there is agreement that the protective effect of fluoride taken in tablet form only begins after the tooth has erupted and is achieved through fluoride dissolved in the saliva. Fluoride tablets should therefore only be used in exceptional cases, and local application carried out in line with the recommendations of the dental professional bodies. If tablets are used nonetheless, they should be sucked and not swallowed at once. With small children it therefore helps to crush the tablet with a spoon and then give the resulting powder, which cannot be swallowed immediately