Dental Sealants 

Dental sealants are thin plastic coatings that are applied to the grooves on the chewing surfaces of the back teeth to protect them from tooth decay. 
Permanent molars are the most likely to benefit from sealants. The first molars usually come into the mouth when a child is about 6 years old. Second molars appear at about age 12. It is best if the sealant is applied soon after the teeth have erupted, before they have a chance to decay.


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What is the process?
The dental hygienist or dentist will use specialized instruments to gently remove these deposits without harming the teeth. First, the dental hygienist will use an ultrasonic device that emits vibrations to knock larger pieces of tartar loose. The ultrasonic device sprays a cooling mist of water while it works to wash away debris and keep the area at a comfortable temperature. Next, hand tools called scalers and curettes are used to manually remove smaller deposits and smooth the tooth surfaces. These tools are curved and shaped to match the curves of the teeth.
Once all the tooth surfaces have been cleaned of tartar and plaque, the teeth are polished using a slow speed hand piece with a soft rubber cup that spins on the end. Prophylaxis paste which is a special gritty toothpaste-like material - is applied to the teeth to make them shiny and smooth. Your dental hygienist or dentist may also apply fluoride to the teeth to help strengthen the tooth enamel.

Benefits of Dental Sealants
Sealants are not seen when a child talks or smiles. A sealant can last for as long as 5 to 10 years. Sealants should be checked at your regular dental appointment and can be reapplied if they are no longer in place.
Fluorides, such as those used in toothpaste, mouth rinse, and community water supplies also help to prevent decay, but in a different way. Sealants keep germs and food particles out of the grooves by covering them with a safe plastic coating. Sealants and fluorides work together to prevent tooth decay.
Sealants are one part of a child's total preventive dental care. A complete preventive dental program also includes fluoride, twice-daily brushing, wise food choices, and regular dental care.
Decay damages teeth permanently. Sealants protect them. Sealants can save time, money, and the discomfort sometimes associated with dental fillings. Fillings are not permanent. Each time a tooth is filled, more drilling is done and the tooth becomes a little weaker.