An extra layer of protection that really pays off.
When it comes to preventing cavities — especially in those hard-to-reach back teeth — dental sealants are one of the most effective tools we have in modern dentistry.
But just how effective are they? Can a thin layer of material really make that much of a difference?
The short answer: yes, sealants work — and studies back it up.
What Are Dental Sealants Again?
Dental sealants are a thin, protective coating applied to the chewing surfaces of your back teeth (molars and premolars). These areas are full of deep grooves where food and bacteria tend to hide — even if you brush and floss regularly.
Sealants help by:
- Sealing off those grooves
- Preventing plaque buildup
- Reducing the risk of decay in vulnerable spots
How Effective Are They?
Sealants are especially powerful when applied early — ideally shortly after the molars come in.
According to the Canadian Dental Association (CDA) and the U.S. Centers for Disease Control and Prevention (CDC):
- Sealants can reduce the risk of cavities in molars by up to 80%
- School-age children without sealants have nearly 3x more cavities than those with them
- In adults, sealants continue to offer protection — especially for those prone to decay
That’s a huge difference for such a simple, non-invasive treatment.
Do Sealants Replace Brushing or Flossing?
Not at all — sealants are meant to complement your daily oral hygiene routine, not replace it. They protect specific areas of your teeth that are most vulnerable to decay, but you’ll still need to:
- Brush twice a day with fluoride toothpaste
- Floss daily
- Visit your dentist regularly for checkups and cleanings
How Long Do Sealants Last?
Sealants can last up to 5–10 years, depending on your bite, eating habits, and oral care. Your dentist will check them during your regular visits and can easily reapply them if needed.
Are Sealants Worth It?
Yes — and especially so when you consider the cost of treating cavities later on. Sealants are:
- Affordable
- Quick to apply (usually takes just minutes)
- Painless and safe
- Covered by many private dental insurance plans in Canada, particularly for children and teens
For many patients, sealants are a smart long-term investment in their oral health.
Final Thoughts
If you or your child are prone to cavities, especially in the back teeth, dental sealants are one of the best preventive options available. They’re fast, cost-effective, and proven to reduce decay significantly — giving you more reasons to smile.
Curious if sealants are right for you or your family? Book a visit today and let’s talk about adding sealants to your preventive care plan.