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Fissure Sealants

Fissure sealants in Kaleen provide a protective barrier over deep grooves in teeth, helping prevent decay, especially in children, offering a simple, painless,…

Fissure Sealants

Fissure sealants in Kaleen provide a protective barrier over deep grooves in teeth, helping prevent decay, especially in children, offering a simple, painless, and effective long-term dental care solution reliable.

Fissure Sealants in Kaleen

The back teeth the molars do most of the chewing work in your child's mouth. They also have something that makes them a target for decay: deep grooves and pits on their biting surfaces that even a well-held toothbrush cannot fully clean. Food and bacteria settle there, acid builds up, and cavities follow.

Fissure sealants solve this problem directly. A thin protective coating is applied over those grooves, sealing them off so nothing can get in. It is one of the most effective preventive treatments in dentistry painless, quick, and far less costly than the fillings it prevents.

At Kaleen Family Dental Surgery, Dr Henny assesses every child's teeth for sealant suitability as part of their regular check-ups and places them in a single, straightforward appointment.

What Are Fissure Sealants?

Fissure sealants are thin plastic or resin coatings applied to the chewing surfaces of back teeth, especially the first and second molars. Once hardened, they create a smooth, sealed layer that makes teeth easier to clean and prevents bacteria from reaching the enamel.

The grooves in molars are often too narrow for toothbrush bristles to clean effectively, leaving hidden areas prone to decay. Sealants protect these vulnerable spots completely. They are not fillings—no drilling or removal of tooth structure is needed, making them a simple and fully preventive treatment.

Who Should Have Fissure Sealants?

Sealants are most often used for children, but adults with deep grooves or a history of back-tooth decay can benefit too. During your child’s check-up, Dr Henny will assess whether they’re actually needed — we only recommend sealants when there’s a clear clinical reason.

They’re usually considered when the first molars come through (around ages 6–7) and again when the second molars appear (around 11–13). Children with past cavities, deep fissures, or diets high in sugar may be at higher risk. In adults, sealants can sometimes help protect teeth showing early signs of enamel wear. They’re not suitable if decay is already present.

What Happens During a Fissure Sealant Appointment?

Every appointment follows a thorough, unhurried process. Here is what happens when you come in:

Clean and Dry the Tooth

The tooth is thoroughly cleaned to remove any plaque or food debris from the fissures. It is then isolated with cotton rolls and dried completely. This step is critical — any moisture on the enamel prevents the sealant from bonding properly, so we take care to keep the tooth dry throughout.

Etch the Surface

A mild acidic gel (etching solution) is applied to the biting surface for a few seconds. This lightly roughens the enamel at a microscopic level, creating a better surface for the sealant to grip. The gel is then rinsed off and the tooth dried again.

Apply the Sealant

The liquid sealant material flowed carefully into the grooves and pits of the tooth. It is thin enough to run into the narrowest fissures on its own, filling every crevice.

Harden with a Curing Light

A small blue curing light is held over the tooth for a few seconds. This sets the sealant instantly, turning it from liquid to a hard, durable plastic coating. The whole process takes around two to four minutes per tooth.

Check the Bite

Dr Henny checks that the sealant does not interfere with how your child bites down. Any slight adjustments are made immediately. Your child can eat and drink normally as soon as they leave there is no recovery period.

What Type of Sealant Do We Use?

We use resin-based sealants as our standard material. These are durable, virtually invisible (white or clear in colour), and bond tightly to the enamel surface when the tooth can be kept sufficiently dry during placement.

For younger children or those who find it difficult to sit still where keeping the tooth dry for long enough is a challenge we may use a glass ionomer cement (GIC) sealant instead. GIC is more tolerant of slight moisture and sets faster, making it a more reliable option in these situations. It also releases a small amount of fluoride over time, which adds an additional layer of protection.

Dr Henny will choose the appropriate material based on your child's age, behaviour, and the clinical conditions on the day.

How Long Do Fissure Sealants Last?

A well-placed fissure sealant on a cooperative patient typically lasts between three and seven years. Resin sealants are most effective in the first two years, during which they provide the strongest barrier against decay. They continue to offer meaningful protection beyond that as long as they remain intact.

Sealants do wear down over time, particularly on the high points of the biting surface where chewing forces concentrate. The grooves themselves tend to retain the sealant longer. At every six-monthly check-up, Dr Henny will check the condition of existing sealants and let you know if any sections need to be topped up or replaced.

A sealant that has partially chipped or worn away can allow bacteria to reach the fissure underneath. This is why regular check-ups are essential — not just for sealants, but for overall oral health.

Are Fissure Sealants Covered by Health Insurance or the CDBS?

Many private health funds cover fissure sealants under their preventive dentistry extras. The amount refunded depends on your specific policy and annual limits. We have HICAPS available at our Kaleen clinic, so your fund is claimed on the spot and you only pay the gap.

The Child Dental Benefits Schedule (CDBS) provides eligible children aged 2 to 17 with up to $1,132 in dental benefits over a two-year period, which can include fissure sealants. Ask our front desk team to check your child's eligibility when you call to book.

Frequently Asked Questions

Book a Fissure Sealant Assessment in Kaleen

We proudly serve patients in Kaleen, Giralang, Lawson, Macgregor, Spence, Evatt, and surrounding North Canberra suburbs. We believe every Canberran deserves a healthy, confident smile, and we’re here to provide personalised dental care for families across the region.

Call us on or book online at kaleenfamilydental.com.au.

Frequently asked questions

Do fissure sealants hurt?

No. The procedure is completely painless for most children. There are no needles or drilling involved. Some children may notice a brief taste from the gel used, but it is quickly rinsed away. Most kids find the experience easy and much simpler than expected.

Can my child eat straight after getting sealants?

Yes. Your child can eat and drink normally straight after the appointment. We may suggest avoiding very hard or sticky foods for the rest of the day, just to allow the sealant to settle fully, but there are no strict restrictions.

Do fissure sealants replace brushing and flossing?

No. Sealants only protect the chewing surfaces of back teeth. They do not cover the sides or spaces between teeth where decay can still occur. Daily brushing, flossing, a balanced diet, and regular dental check-ups remain essential for maintaining good oral health.

My child has baby teeth can they still get sealants?

Yes, in some cases. Baby molars can also have deep grooves that trap food and bacteria. If your child is at higher risk of decay, or those teeth need to last several years, sealants may be recommended after a careful assessment.

What if decay forms under a sealant?

If a sealant is placed on a healthy tooth and remains intact, decay cannot develop underneath it. Problems only arise if the sealant wears down or chips and is not replaced. Regular check-ups ensure any damage is detected early and fixed before issues develop.

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