A dental sealant is a tooth-coloured plastic film that is applied by our dentist or hygienist to the deep grooves (fissures) on the back teeth (molars) where tooth decay most often starts.

The bacteria in plaque live in these grooves and make acid which causes tooth decay. Fissure sealants assist in preventing the build-up of plaque acids on the enamel surface of teeth and they are of value in the prevention of tooth decay.

A good time to apply sealants is soon after permanent teeth are fully erupted, which can be from 6 years of age. Fissure sealants can be great protection for children’s permanent teeth to prevent future decay and keep them healthy for life!

  1. The chewing surface of a molar contains natural pits and grooves (fissures) where dental decay occurs most often. The bristles of a toothbrush are too large to reach into some of these areas.
  2. The tooth is thoroughly cleaned and dried before applying the sealant.
  3. The liquid sealant is placed onto the surface of the tooth and flows into the pits and fissures. The liquid is then set with an ultra violet light.
  4. The pits and fissures are now sealed and the tooth surface is smooth and easy to keep clean.
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