Everything about Dental Sealant totally explained
Dental sealants are a
dental treatment consisting of applying a
plastic material to one or more teeth, for the intended purpose of preventing
dental caries (cavities) or other forms of tooth decay.
Development
Since the
1970s, in the
United States, the incidence of
tooth decay on the smooth surfaces of teeth has declined, in part because of
fluoridation becoming widespread in public
water supplies as well as improved
dental hygiene among the public. However, because the teeth in the back of the mouth (
molars and
premolars) have numerous pits and fissures on their biting surfaces, certain areas of these teeth are often difficult to clean even with vigorous tooth-brushing. To remedy this, research into dental sealants began in the
1960s and by the early 1970s, the first generation of sealants became available and were approved by the
FDA.
Application
Dental sealants are usually applied in a
dentist's office. The dentist or assistant first cleans and dries the tooth to be treated, then paints a thin layer of liquid plastic material on the pits and fissures of the tooth. After application of the plastic liquid, blue spectrum natural light is shined on the applied material for a few seconds to cure the plastic. Alternatively, some brands of sealants self-cure via a chemical process.
After curing, the
plastic becomes a hard, thin layer covering the treated portions of the tooth. Despite the incredible pressures effected on teeth during chewing each day, dental sealants may remain effective for five years or longer, although sealants do wear naturally and may become damaged over time. Bacteria and food particles may eventually become entrapped under the dental sealants, and can thus cause decay in the very teeth intended to be protected.
Further Information
Get more info on 'Dental Sealant'.
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