Fissure sealants: simple protection against decay

The fissures on the chewing surfaces of molars are deep, narrow grooves where food and plaque easily collect – and a toothbrush does not always reach them fully. Sealing is a simple way of dealing with this before a problem develops.

What is fissure sealing

It involves applying a thin protective layer to the chewing surface of the tooth, which physically closes the fissures and makes it harder for deposits to collect in them.

Which children it is most often recommended for

It is most often recommended soon after the permanent molars come through, at an age when the fissures are deep and the child is still learning to brush thoroughly.

What the procedure involves

The procedure is quick and non-invasive – the tooth is cleaned and prepared, and a material is applied that then hardens. No drilling or anaesthetic is involved.

How long the protection lasts

The sealant is checked regularly at check-ups, as over time it can wear down or partly chip away, especially with harder foods. If needed, it is simply renewed.

Does sealing replace brushing?

No. Sealing reduces the risk in places that are hard for a toothbrush to reach, but regular oral hygiene remains the foundation of protection against decay.

If you are wondering whether your child is at the right stage for fissure sealing, an orthodontist or paediatric dentist can assess this quickly at a check-up.