Dental Sealants FAQ

Frequently asked questions related to dental sealants.

Dental Sealants

What is sealant for teeth?


Dental sealants are thin coatings painted on the chewing surface of the premolars and molar (back) teeth. Sealants are used to prevent tooth decay / cavities.

What are dental sealants made of?


Dental sealants are plastic made from monomers that are derived from BPA, including bis-GMA and bis-DMA. Most sealants are BPA-free. Once the sealants are available for oral-usage, it will produce BPA as a result of chemical reaction due to saliva exposure.

What is the purpose of dental sealants?


The purpose of sealants is to protect the chewing surface from cavities. It covers the chewing surface by covering them with a protective shield. This helps to block out germs and food. You will get 80% cavity protection for 2 years and 50% cavity protection for 4 years.

At what age are dental sealants most effective?


Dental sealants are ideal for kids aged between 5 and 14 years. Your first molars break through around age 6, while your second molars appear around age 12. Most dentists recommend sealing these teeth to protect them from cavities.

What are the clinical indications for dental sealants?


Clinical indications for the placement of dental sealants:

  1. Patients who are at increased risk of caries due to poor dental hygiene, orthodontic treatment, high sugar diet and lack of exposure to fluoride.
  2. Enamel defects in the teeth
  3. Patients with complicated medical history
  4. Preventive methodology for invasive dental restorations
  5. Dental defects

How long do dental sealants last?


Sealants can last upto 9 years from placement. However, in some cases they do fall off, so they should be checked at regular dental appointments.

How long does it take for dental sealants to dry?


Dental sealants are applied in liquid form by the dentist. It will take only a minute or two to dry with the help of a curing light.

How to place dental sealants?


Applying the sealant is a simple and painless process.

  1. As a first step, the teeth should be cleaned thoroughly
  2. Each tooth is then dried and absorbent material or cotton is put around the tooth to keep it dry
  3. An acid solution is put on the chewing surfaces to roughen the teeth
  4. The teeth are then rinsed and dried
  5. Sealant is then painted onto the enamel of the tooth, where it bonds with the teeth and hardens. A curing light is used to harden the sealant

How to remove dental sealants?


Either a laser or a dental drill is used to remove the sealant material carefully.

Why do my teeth hurt after sealants?


In a few cases, people might feel sensitivity due to sealants. In most of the cases, sealants cause no issues.

Which teeth would be the most likely candidates for sealants?


Back teeth are the most likely candidates for sealants, as the back teeth contain more hard-to-reach pits and grooves. The cavities serve as a host to food debris and bacteria.