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Dentist Marrickville | True Smiles Dental
When most people think about cavity prevention, they picture brushing, flossing, and maybe cutting back on sugar. But there’s another powerful tool that doesn’t always get the spotlight: dental sealants. Often used for kids but just as beneficial for adults in some cases, sealants act as a protective shield for your teeth, stopping cavities before they start. Let’s dive into why they’re considered one of the most effective (and underrated) ways to keep your smile healthy.
Dental sealants are thin, protective coatings (usually made of plastic resin) applied to the chewing surfaces of the back teeth — the molars and premolars. These teeth have deep grooves and pits that toothbrush bristles can’t always reach, making them prime spots for cavities.
Think of a sealant as a raincoat for your tooth. By filling in the grooves, it creates a smooth surface that blocks bacteria and food particles from getting trapped. This reduces the risk of decay by up to 80% in molars, according to studies.
Children and teenagers: As soon as their permanent molars come in, sealants can protect them from decay.
Adults without decay or fillings in molars: Sealants can still be applied if the tooth is healthy.
People prone to cavities: If you have a history of frequent decay, sealants may offer extra protection.
Getting sealants is one of the easiest dental treatments:
The tooth is cleaned and dried.
A gel is applied to roughen the surface slightly.
The sealant material is painted on and hardened with a special light.
That’s it — no drilling, no needles, and it only takes a few minutes per tooth.
Sealants can last anywhere from 5 to 10 years, though they should be checked during regular dental visits. If they wear down or chip, your dentist can reapply them quickly.
Absolutely. While sealants provide strong protection, they don’t replace brushing, flossing, or regular check-ups. Think of them as an added layer of defence, working alongside your daily routine and professional cleans at True Smiles Dental.
Dental sealants may not be flashy, but they’re one of the simplest, most effective ways to prevent cavities — especially in hard-to-reach molars. Whether for your child or yourself, they’re worth asking about at your next visit. Book an appointment with True Smiles Dental today to see if sealants are the right choice for your smile’s long-term protection.