Sealants

A sealant is a thin layer of plastic that protects the occlusal surface (chewing surface) of a tooth. Sealants are generally placed on molars and premolars to protect these teeth from cavities.

Studies show that the majority of cavities for kids under 15 years of age are developed on the occlusal surface of a tooth (chewing surface). These surfaces contain natural grooves where dental plaque can easily accumulate. This plaque can be hard to remove, even with a conscientious brushing, if the bristles of the brush are thicker than the grooves. If plaque stays a long time in the grooves, a cavity can easily develop.

Who should get sealants?

• Kids between the ages of six and fourteen should have sealants on their molars and premolars as soon as these teeth have erupted.
• Kids with primary teeth that have deep grooves.
• The best candidates for sealants are therefore kids and teenagers, because they are the ones that are at most risk for cavities. Adults can also benefit from sealants even though the risk for cavities is lower.

Steps in placing sealants

The procedure is done without any pain:

• The tooth is cleaned thoroughly.
• If the grooves of the tooth have a cavity starting, it is eliminated.
• An acidic solution is placed on the surface of the tooth for a few seconds to make it rough, which helps the bond.
• The tooth is rinsed and dried.
• The liquid sealant is applied to the tooth that forms a direct bond and a blue light hardens it.
• Sometimes the dentist can choose to put a composite restorative material (white filling) as a sealant allowing more resistant.

Lifespan of a sealant

A sealant can last between three and ten years, depending mainly of oral hygiene and the material used (sealant versus composite). It is important to get the sealants checked for fractures or wear during routine exams. The dentist can therefore replace the sealants when needed.

Cost of a sealant

The price of a dental sealant may vary between 35$ and 60$ depending on which part of the country we live in and which material was used.

References