Care After Dental Sealants

Excellent decision! Sealants are one of the best preventive tools to protect your child’s teeth from cavities. The procedure is very simple and painless — but there are some important care instructions to make them last for many years.

What are sealants and what was done today?

Dental sealants are a thin layer of liquid resin applied to the chewing surfaces (occlusal) of back teeth — molars and premolars — to fill their natural grooves and fissures. Those grooves are so narrow that toothbrush bristles can’t reach the bottom, making them the ideal place where bacteria accumulate and cavities form.

How was the procedure done?

1. The tooth surface was thoroughly cleaned to remove any food debris or plaque.
2. A conditioning gel (acid) was applied for a few seconds to prepare the surface and improve sealant adhesion.
3. The tooth was thoroughly rinsed and dried.
4. The liquid sealant was applied over the grooves and fissures of the tooth.
5. The sealant was cured (hardened) with a special blue light for a few seconds.
6. The bite was checked to ensure the sealant isn’t too high.

No anesthesia was used. The procedure is completely painless — only the instruments and water are felt. Many children are surprised by how quick and easy it is.

Why are sealants so important?

• Protection for up to 10 years: A well-placed sealant can protect the tooth against cavities for many years, especially if checked periodically.
• Reduce cavity risk by up to 80%: Studies show that sealants drastically reduce the possibility of developing cavities on the surfaces they cover.
• No pain, no anesthesia required: Unlike a filling or root canal, sealants are completely painless and require no tooth preparation.
• Saves more costly treatments: Preventing a cavity with a sealant is much more economical than treating that cavity later with a filling, crown or root canal.

Which teeth were sealed?

Sealants are placed primarily on permanent molars — especially the first permanent molar that erupts around age 6 (also called the ‘6-year molar’). They can also be placed on premolars and, in high cavity-risk cases, on baby molars.

The first permanent molar is the most important tooth to seal — it erupts very early, has very deep grooves and remains in the mouth for life.

Right After the Procedure

What your child will feel leaving the clinic

Since no anesthesia was used, the child can eat and drink immediately after the procedure. However, there are some important precautions for the first days.

• Bite may feel different: It’s normal for the child to feel the sealed tooth slightly ‘high’ or different when biting. This usually adjusts on its own within a few hours or days as the sealant is polished by chewing. If the high-bite sensation persists after 3-5 days, let us know for a small adjustment.
• Different texture with tongue: The child may notice the tooth feels different when running their tongue over it — rougher or different. That’s the sealant and it’s completely normal. It becomes imperceptible within a few days.
• No pain or discomfort · Important: Sealants should not cause any pain whatsoever. If the child reports pain in the sealed tooth — especially when biting or with cold/heat — let us know for evaluation.

The First Hours — Key Care

What matters most right after leaving the clinic

• Avoid sticky and hard foods for the first 24 hours · First 24h: Although the sealant hardens immediately with the light, it reaches maximum hardness and adhesion in the first 24 hours. During this time, prevent the child from eating very sticky foods (gum, chewy candies) or very hard foods that could peel the sealant before it’s fully set.
• Moderate temperature the first hours: Although not strictly necessary, preferring foods and drinks at room temperature (not extremely cold or hot) the first few hours while the sealant finishes curing completely is good practice.
• Can eat normally after 24 hours: After the first 24 hours, the child can eat completely normally. Sealants are designed to withstand normal daily chewing.

Eating with Sealants

What to always avoid so sealants last longer

Sealants are very resistant to normal chewing, but certain foods and habits can prematurely dislodge them. Beyond the first 24 hours, there are things worth permanently avoiding to protect sealants.

First 24 hours — avoid:

• Chewing gum
• Chewy candies (taffy, toffee, gummy bears)
• Very hard foods (nuts, ice, bones)
• Popcorn (the hard unpopped kernels)

Always avoid with sealants (and any dental work):

• Chewing gum frequently — sealant’s number one enemy
• Biting ice — generates forces that can fracture or dislodge sealants
• Eating very hard or chewy candies frequently
• Biting nails or non-food objects with back teeth
• Frequent sugary drinks and juices (damage all teeth, with or without sealant)

Foods that help dental health with sealants:

• Fresh fruits and vegetables (apple, carrot, celery) — natural cleaning effect
• Dairy: milk, cheese, yogurt — provide calcium and protect enamel
• Plain water — hydrates and cleans without damaging teeth
• Dried fruits in moderation — nourishing without the damage of sugar

Dental Hygiene with Sealants

Sealants don’t replace brushing — they enhance it

A common parental mistake is thinking that since the tooth already has a sealant, it doesn’t need such careful brushing. On the contrary — the edges of the sealant and the side surfaces of the tooth remain unprotected. Cavities can develop next to the sealant if hygiene is poor.

Hygiene routine for children with sealants:

1. Brushing twice daily — morning and night: With a soft brush of appropriate size for the child’s age. Until ages 8-10, parents should brush their children’s teeth — children don’t have the fine motor skills needed to do it well alone. If the child wants to ‘practice,’ let them, but the adult does the final brushing.
2. Technique: all angles of the tooth: Brush the chewing surface (where the sealant is), the cheek-facing surface and the tongue-facing surface. Small circular motions. No need to scrub hard — consistency is more important than pressure.
3. Fluoride toothpaste in the right amount: Children ages 3-6: a grain of rice-sized smear. Children 6 and up: a pea-sized amount. Fluoride strengthens the enamel around the sealant and protects uncovered surfaces.
4. Dental floss from when teeth are touching: Even though the sealant covers the chewing surface, it doesn’t protect the spaces between teeth. Dental floss cleans those spaces where cavities can also form. Parents should floss their children’s teeth.
5. Fluoride rinse (children over 6): In children over 6 who can rinse without swallowing, a fluoride rinse before bed is an excellent complement. Don’t rinse with water after.

Tip for parents:

Make nightly brushing a fun and consistent activity. A child who brushes well at 7 will keep doing so at 17. Dental hygiene is a life habit worth much more than any treatment.

Sealant Maintenance and Durability

How to maximize lifespan

How long do sealants last?

With proper care, a sealant can last between 5 and 10 years. However, they can wear down or partially come off earlier if the child eats many sticky or hard foods. That’s why periodic check-up is so important.

Check-ups every 6 months — mandatory

At each control appointment we check the condition of the sealants. If a sealant wore down or partially came off, we repair or replace it. An incomplete sealant leaves exposed grooves — worse than having none because it can trap food under the edge.

How do I know if the sealant fell off?

• The child says the tooth feels ‘different’ or that something is missing
• When running the tongue over it, the tooth groove feels rough or open
• At the control check-up the dentist detects it with an explorer
• Never causes pain if only the sealant comes off (with no cavity underneath)

If the sealant comes off, we simply replace it at the next appointment. It’s not an emergency — let us know and we’ll schedule it.

Beyond the Sealant: Complete Prevention

The sealant is part of a preventive plan, not the whole plan

• Professional fluoride application every 6 months: We apply concentrated fluoride at each control visit. Fluoride strengthens enamel and can stop very small cavities at the initial stage. It perfectly complements sealants.
• Reduce sugars and frequency of consumption: It’s not so much the quantity of sugar as the frequency. One soda a day causes more harm than one a week. Sodas, juices, candies and snacks should be occasional, not daily.
• Dental check-up every 6 months: Cavities in children advance very quickly because the enamel of baby teeth and young permanent teeth is thinner. Detecting them early means much simpler treatments.
• Water as the main drink: Water has no sugar, helps clean the mouth and, if it’s tap water, contains natural fluoride. Replacing sodas and juices with water is one of the most impactful changes for dental health.

Warning Signs

When to contact us

Contact the clinic if:

• Pain in the sealed tooth: Sealants should not cause pain. If the child complains of pain in the sealed tooth — especially when biting, with cold or heat — it may indicate there was a small cavity underneath that wasn’t detected, or the sealant is too high. Let us know.
• Very high or uncomfortable bite after 3-5 days: A small bite adjustment is normal the first days. If after 5 days bite discomfort persists, the sealant needs to be adjusted. It doesn’t need to be replaced — just lightly polished.
• Child says something fell off the tooth: If the child notices something came off the sealed tooth, let us know at your next appointment to check the sealant. Not an emergency but important to address soon.
• Dark spot visible on the sealed tooth: If you see a dark spot on the tooth that had a sealant, it may indicate a cavity under a dislodged sealant. Schedule an evaluation appointment.

This is completely normal:

• Bite feeling different the first 1-3 days
• Child noticing the tooth feels different with tongue at first
• Sealant having a slightly different color than the tooth — normal
• Sealant taking a few days to feel ‘natural’
• Child being curious and wanting to touch it with tongue constantly at first

Keys for Long-Lasting Sealants

• No gum or sticky candies
• Brush twice daily with correct technique
• Dental floss even with sealants
• Dental check-up every 6 months
• Water instead of sodas and juices
• Professional fluoride at every visit

Parent Guide — Frequently Asked Questions

At what age are sealants placed?

The ideal time is as soon as permanent molars erupt — usually around age 6 for first molars and ages 11-13 for second molars and premolars. No need to wait for the tooth to be fully erupted; it can be sealed as soon as it’s accessible.

Do sealants hurt?

No. The procedure is completely painless and requires no anesthesia. Only the instruments, water and a light (which doesn’t heat or hurt) are felt. Many children are surprised by how quickly it’s done.

Can a sealed tooth get a cavity?

Sealants protect the chewing surface (the one with grooves), but don’t protect the spaces between teeth or smooth surfaces. That’s why hygiene remains essential. Also, if the sealant comes off and isn’t replaced, the groove is exposed again.

Can baby teeth get sealants?

Yes, in high cavity-risk children sealants on baby teeth are a valid option. However, they’re more commonly placed on permanent teeth because those are the ones that will last a lifetime.

Do sealants contain BPA (Bisphenol A)?

Modern dental sealant resins contain minimal amounts considered clinically insignificant. Major dental and public health associations endorse their safety. The preventive benefits far outweigh any theoretical risk.

Can my child eat right after?

Yes, because no anesthesia was used. However, we recommend avoiding very sticky or hard foods for the first 24 hours to allow the sealant to reach maximum adhesion.

Why did the dentist check that the sealant wasn’t ‘high’?

We verify that the bite is comfortable and correct after placing the sealant. If the sealant were too thick, the child would bite asymmetrically, which is uncomfortable and can cause discomfort. If so, it’s easily adjusted at the same or next appointment.

How long do sealants last?

Between 5 and 10 years with good care. They’re checked at each 6-month visit and replaced if necessary. A sealant that is replaced on time continues to protect the tooth.

Are sealants very visible?

Modern sealants are white or transparent — almost invisible. They can only be seen up close or with the mouth wide open on back teeth. Some sealants are pink or blue to help the dentist detect them during check-ups.

Does my child need sealants if they already have good hygiene?

Yes. Even with perfect hygiene, molar grooves are physically impossible to clean with a toothbrush because they’re narrower than the bristles. Sealants eliminate that structural risk that doesn’t depend on hygiene.