What causes Decay?
Decay is caused by dental plaque, a thin, sticky, colorless deposit of bacteria that constantly forms on everyone's teeth. When sugar is eaten, the bacteria in plaque produces acids that attack the tooth enamel. After repeated acid attacks, the enamel breaks down and a cavity (hole) is formed.
What is a Sealant?
A sealant is a clear or shaded plastic material that is applied to the chewing surfaces of the back teeth (premolars and molars) where decay occurs most often. This sealant acts as a barrier, protecting the decay-prone areas of the back teeth from plaque and acid.
Why are sealants necessary?
When the back teeth are developing, depressions and grooves form in the chewing surfaces of the enamel. These irregularities are called pits and fissures. They are impossible to keep clean, because the bristles of a toothbrush cannot reach into them. Therefore, pits and fissures are snug places for plaque 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. Recommended by American Dental Association.
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