Sealants
Johnson Dental
What causes tooth decay?
Plaque bacteria uses sugar and starch in food as a source of energy. The bacteria convert the sugar or starch into harmful acids that attack tooth enamel. Repeated attacks may cause the enamel to break down resulting in cavities.
What are sealants?
A sealant is a plastic material that is applied to the chewing surfaces of the back teeth. This plastic resin bonds into the grooves and pits on the surfaces of the back teeth. The sealant can act as a protective barrier against decay.
Why are sealants necessary?
When the back teeth are developing, pits and fissures form in the chewing surfaces of the enamel. The toothbrush can not reach into them to keep them clean. Sealants keep out plaque and food, thus decreasing the risk of decay.
How are sealants applied?
It usually only takes a few minutes to apply sealants. The teeth that will be sealed are cleaned and conditioned to help the sealant adhere to the tooth. The sealant is then painted onto the tooth enamel where it bonds directly to the tooth and hardens. Sometimes a special curing light is used.
How long do sealants last?
Sealants hold up well under the force of normal chewing and usually last several years before a new application is necessary.
Are sealants just for kids?
The likelihood of developing pit and fissure decay begins as soon as the teeth erupt, so children and teenagers are obvious candidates. But adults can also be at risk for this type of decay and can benefit from sealants as well.
Posted on: Monday, July 14, 2008 at 1:46 pm 
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