Fillings and Sealants
Fillings and sealants are preventive and early-repair treatments, and this page is about that preventive role, not about repairing a filling that has already been lost. A sealant is a thin protective coating painted onto the chewing surface of a molar, where grooves can trap food and bacteria. A filling in this preventive context repairs a small area of early damage before it grows into a larger problem.

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What Fillings and Sealants involves
A dentist will check which teeth are most at risk, clean the surface, and apply a sealant or place a small filling as needed. Sealants are most often discussed for molars in children and teenagers, but they can also be considered for adults whose molars have deep grooves. Regular checks matter, because a sealant can wear and a small filling can need attention over time.
Signs of Fillings and Sealants
- Deep grooves on molars that trap food
- Early signs of decay in a small area
- A molar that is hard to clean fully with brushing
- A dentist has recommended protection for a tooth at risk
What to do right away for Fillings and Sealants
- Brush twice a day and clean between teeth, including around molars
- Avoid very sticky foods that can pull at a sealant
- Keep regular dental checks so worn sealants can be found
- Call for help if a sealed tooth becomes painful or a filling feels rough
How a dentist may help with Fillings and Sealants
- Examine the teeth and identify areas at risk
- Clean the tooth surface before applying a sealant or placing a filling
- Apply the sealant or filling and check that it fits the bite
- Review cleaning and check-ups to keep the protection working
When to seek urgent care for Fillings and Sealants
Seek urgent care if a tooth with a sealant or filling becomes severely painful, swells, or breaks.
General information on this page is not medical advice. A dentist who examines you can give advice for your situation.
Related emergency dental help
Emergency Dental Services — back to the full list. Contact Emergency Dentist for general enquiries, or call for urgent help.
Frequently asked questions about Fillings and Sealants
What is the difference between a sealant and a filling?
A sealant is a protective coating on a healthy or at-risk surface. A filling repairs a tooth where damage has already occurred.
Are sealants only for children?
They are most often used for young molars, but adults with deep molar grooves may also be considered. A dentist can advise for each tooth.
Do sealants replace brushing?
No. Sealants add protection to grooves, but daily brushing and cleaning between teeth are still needed.