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Pit & Fissure Sealents

Introduction:

When the teeth are developing, depressions and grooves form in the chewing surfaces of the enamel. These features are called pits and fissures. They are tough to clean, because the bristles of a toothbrush may not reach into them. Therefore, pits and fissures are snug places for plague and bits of food to hide. By forming a thin covering over the pits and fissures, sealants keep out plaque and food and thus decrease the risk of decay.

A sealant is a clear shaded plastic filing material that is applied to the chewing surfaces of the back teeth where decay occurs most often. This sealant acts as a barrier, protecting the decay-prone areas of the teeth from plaque and acid attack.

Procedure:

Each tooth takes only a few minutes to seal. First the teeth that will be sealed are cleaned. The chewing surfaces are then etched (roughened) with a weak acidic solution to help the sealant adheres to the teeth. Finally, the sealant is brushed on the tooth enamel and allowed to set. When the sealent is applied, finger like strands penetrate the pits and fissures of the tooth enamel. Although the sealant cannot be seen with the naked eye, the protective effect of these strands continues.

Follow up:

It may be several years before another application of sealant is needed. Reapplication of the sealant will continue the protection against decay and may save the time and expense of having a tooth restored. Sealant will be checked during regular dental visits to determine if reapplication is necessary.

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