Fissure Sealants

Protect your loved ones Teeth with Fissure Sealants

Fissure Sealants

At Cork City Dentist we are committed to minimally-invasive dental procedures that will ensure the health of your teeth and gums. Preventative treatments can help to keep some of those minor dental issues, like small cavities, from being allowed to develop into a much more concerning issue.


Preventative treatments and maintenance can even help to prevent some of these issues from becoming a reality in the first place. Fissure sealants are one of those preventative treatments that can add a level of protection for the teeth of adults and children alike.

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What are fissure sealants?

The molars in our mouth have chewing surfaces that may feel smooth but, in fact, have many natural fissures or grooves and pits. These fissures or grooves are where decay can often first be seen. Even with a healthy daily oral health care routine, some of these fissures cannot be cleaned well enough to keep the tooth decay-free. This is because even the bristles of a toothbrush are quite often too large to reach into those grooves in order to keep them free from food particles that get ground into the fissures when you chew.

Fissure sealants are a liquid resin-based sealant that is applied to the surface of each of the teeth that is at risk of decay. When the sealant is applied to the teeth, the liquid flows into each fissure and pit on the tooth. This will effectively seal off the fissures so that food debris can’t settle into them.

The procedure is a great and non-invasive way to protect teeth from the risks of advancing tooth decay. Once it has been set, the sealant creates a shield that will help to keep teeth from being susceptible to decay.

Dental sealant is also called fissure sealant. The fissure is the groove/valley in the top your side and back teeth when you look down on them and on the molars resembles a hot cross bun. A huge survey of dental decay patterns has found that 90% of decay in permanent teeth starts in this fissure. This is due to the ability of food to stick in and sink into the fissures which are hard to clean compared to the outside of your teeth for example.

A fissure sealant is basically liquid white filling material which is stuck onto the fissure to block it off and stop food getting stuck. Occasionally people will have pits on the palate side of their front teeth which should be sealed but in general fissure sealants are for premolars, (side) and especially molars/back teeth. The first permanent molars come into the mouth at approximately six years of age without any baby tooth falling out. They are situated away at the back of the mouth in a hard to reach area and can do with all the protection they can get. They have to last a lifetime after all! Fissure seals are painless and do NOT involve any drilling or numbing. Usually, the tooth is brushed clean, a blue gel placed, the gel washed off, the sealant applied and a light shone on it to set. The age varies as to when a child will let us do a fissure seal as it takes a minute or so with your mouth open. As a general rule certainly most eight-year-olds are fine with some kids managing younger

Fissure sealants should be applied to premolars and molars. These teeth are the ones that have those hollows and grooves that can be at the highest risk of decay. Your dentist will perform an examination of each of the teeth in order to determine which teeth will be best served from being sealed.


If the molars have deep fissures then they will benefit from the sealing process. Some teeth naturally have grooves that are deeper than other teeth, which means that some teeth will benefit more from the process. Some molars may not even need to be sealed.

Some front teeth have a small pit on the palate side. In front teeth, this is a high-risk area to get decay as this pit is naturally very close to the nerve and is a smart spot to seal.


Fissure sealants are applied to the molars once the permanent teeth start to erupt in the mouth. For most children, this occurs between six and seven years of age. Teeth can be sealed as they continue to erupt, which could be until children are between eleven and fourteen.

Teeth are first thoroughly examined to identify which teeth will benefit from the sealant. The teeth are then cleaned well to ensure that no food or other debris is inadvertently trapped inside of the fissures once they are sealed off. A specialised cleaning solution will be applied to each tooth and then washed off.


The fissure sealant liquid will be applied to each tooth carefully. A specialised UV light will be used to help the solution to set thoroughly.

Patients will feel no discomfort or pain during the procedure. There will be no noticeable difference felt on the teeth once they have been sealed. No local anaesthetic or injection is used.

The fissure sealant should last for several years. At each routine checkup, the dentist will check on each sealed tooth, to make sure that the seal on each tooth is still intact. Because molars play such a big role in the way that we eat, they can sustain a bit of wear and tear. If this does happen, the dentist can add additional sealant or replace it entirely to ensure continued protection against decay.

Fissure Sealant Cork

What does it cost to get fissure sealants?

Are you looking to learn more about fissure sealants? Take the right steps to protect your teeth or the teeth of your children. At Cork City Dentist we provide our patients with a wide range of competitively priced dental solutions and treatments. View our pricing schedule below or book your consultation online. You can also call our clinic to book an appointment.

PRSI - Annual Examination (including oral cancer screening)FREE
PRSI - Scale and Polish€15-25
Examination (including oral cancer screening)€40
Scale and Polish€80
Fissure Sealants€25
Hygienist visit€75
Periodontal therapy/treatment of gum disease per visit€80-90
Dental Splint/Nite guard - Light€200
Dental Splint/Nite guard - Heavy Duty€400
Small X-rays€10 each
Panoramic X-ray€80

Are you looking to protect teeth from decay? Fissure sealants are an excellent preventative treatment that can help protect teeth from the risk of decay. Book your appointment online with one of our dental professionals, or call our clinic at 0214501306.


Please Call us via the number below

(021) 450 1306

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    Just finished my one year invisalign journey with Micheal and his team. After he spent a whole hour for free with me explaining invisalign and was really reasonably priced, I knew I would go with him. He is SO kind and gentle, and was really helpful and attentive during my treatment, adjusting things when needed. He also recommended his colleague Dr Russell for composite bonding to finish off my teeth and I'm delighted I did, I'm so happy, I have the smile I've wanted my whole life now. I've recommended Michael to my friends with small kids and they all love him too. 100% recommend this dental practice. Thank you Michael!!!

    Michelle Healy Avatar Michelle Healy
    March 4, 2023

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