A Dental sealant is a thin, plastic coating painted on the chewing surfaces of
teeth -- usually the back teeth (the premolars and molars) -- to
prevent tooth decay. The sealant quickly bonds into the depressions and grooves of the teeth, forming a protective shield over the enamel of each
Although thorough brushing and flossing can remove food particles and plaque from smooth surfaces of teeth, they cannot always get into all the nooks and crannies of the back teeth to remove the food and plaque. Sealants protect these vulnerable areas from
tooth decay by "sealing out" plaque and food.
How Are Sealants Applied?
Applying sealant is a simple and painless process. It takes only a few minutes for your dentist or hygienist to apply the sealant to seal each tooth. The application steps are as follows:
First the teeth that are to be sealed are thoroughly cleaned.
Each tooth is then dried, and cotton or another absorbent material is put around the tooth to keep it dry.
An acid solution is put on the chewing surfaces of the teeth to roughen them up, which helps the sealant bond to the teeth.
The teeth are then rinsed and dried.
Sealant is then painted onto the
tooth enamel, where it bonds directly to the tooth and hardens. Sometimes a special curing light is used to help the sealant harden.
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