Taking good care of your teeth and overall oral health is a daily commitment. It’s no fun crossing your fingers in hopes that you don’t have a cavity every time you visit your dentist for a regular appointment. Dental sealants can be an easy way to ensure your teeth are protected from decay over the long run, but knowing more about dental sealants and their cost prior to the procedure can help you decide whether the treatment is right for you.
What are dental sealants?
Dental sealants are plastic coatings usually placed on the chewing (occlusal) surface of the permanent back teeth — the molars and premolars — to help protect them from decay.
Why are dental sealants placed on teeth?
The chewing surfaces of the molar and premolar teeth have grooves — “fissures” — that make them vulnerable to decay. These fissures can be deep, difficult to clean, and narrower than even a single bristle of a toothbrush.
Plaque accumulates in these areas. The acid from bacteria in the plaque attacks the enamel and cavities can develop. Fluoride helps prevent tooth decay and protects all the surfaces of the teeth. Dental sealants provide extra protection for the grooved and pitted areas by providing a smooth surface covering the fissured area.
When are dental sealants placed?
Since dental sealants provide such strong prevention against tooth decay, they’re typically used with children and teenagers once their molars come in.
Are dental sealants only placed on the chewing surface of molar and premolar permanent teeth?
Dental sealants are usually placed on the chewing surfaces of these teeth because these are the areas and teeth that typically have deep fissures. Dental sealants are sometimes also used on other permanent teeth if they have grooves or pits to help protect these surfaces. In some children, the molars in the primary dentition (baby teeth) also have grooves that could benefit from dental sealants. In this situation, your dentist or hygienist may recommend dental sealants on the chewing surfaces of these primary teeth.
Can dental sealants be placed on the teeth of adults?
Yes — while less common, dental sealants are sometimes placed in adults at risk for caries on deep grooves and fissures that do not already have fillings or dental sealants.
What do dental sealants look like?
Dental sealants can be clear, white or have a slight tint depending upon the dental sealant used.
How are dental sealants placed?
- The tooth surface is thoroughly cleaned with a paste and rotating brush by a dental professional.
- The tooth is washed with water and dried.
- An acidic solution is placed on the fissured area of the tooth’s chewing surface for several seconds before being rinsed off. This creates small microscopic areas and a fine rougher surface than the surrounding tooth enamel, which can be seen with a microscope. The rough surface and microscopic areas enable the dental sealant to attach to the tooth.
- After the tooth is dried again, the liquid dental sealant is placed on the tooth and hardened. Dental sealants are hardened by using a light that hardens the dental sealant, or sometimes by using a two-component dental sealant that sets without light.
- Once the dental sealant has hardened, it becomes a hard plastic varnish coating, and you can chew on the tooth again.
How long does a dental sealant last?
Dental sealants have been used and proven to be effective since the 1970s. Many studies have shown that they are effective in helping prevent decay on chewing (occlusal) surfaces. Dental sealants can last many years. If necessary, it is also possible to place a new dental sealant on the tooth.
Do I still need to use fluoride if I have dental sealants?
Yes. Dental sealants only protect the surface area that they are placed on. Fluoride helps protect all the surfaces of the tooth from decay and cavities.
