Dental Sealants in St. John's, NL - Avalon Dental Centre

A patient has a blue light being shone into her mouth at the dentist. Often used for dental fillings or dental sealants.

Dental sealants are thin, protective coatings applied to the chewing surfaces of back teeth. They act as a barrier against cavities by preventing food particles and bacteria from settling into the grooves of molars and premolars. Dental sealants are a quick, painless, and effective way to protect your teeth, especially for children and teens. For trusted family dentistry in St. John’s, Newfoundland, our team provides comprehensive care for all ages.

Book Your Consultation

What to know:

Dental sealants are typically applied to permanent molars.
They are ideal for cavity-prone individuals, especially children.

Dental sealants can last up to 10 years with proper care.

What to expect:

A hygienist is performing a patients dental exam. An exam is performed before all services including dental fillings, dental sealants, etc.

Preparation

The dentist begins by thoroughly cleaning the tooth to remove any plaque or debris from the grooves. This ensures a smooth surface for the dental sealant to adhere to and prevents bacteria from being trapped beneath it.

Application

The dental sealant material is painted onto the tooth’s surface.

A stock photo of a patient receiving dental bonding from a dentist

A patient wearing protective glasses while a blue light is being used on her teeth. This blue light is often used to cure dental fillings or sealants.

Curing

A special curing light is directed at the tooth for a few seconds to harden the sealant and ensure its durability. Once hardened, the dental sealant forms a strong, smooth layer that blends with the tooth’s surface and resists wear from chewing.

After Care:

Maintain regular brushing and flossing to keep the teeth under the dental sealants clean.
Visit your dentist for periodic checks to ensure the dental sealants are intact.

Avoid chewing on hard objects to prolong sealant life.

Take the Next Step in Optimum Oral Health

From comprehensive oral examinations to full mouth restorations, we are here to assist you. We will provide you with reliable solutions based on your oral health needs.

Book an Appointment

FAQ related to Dental Sealants

At what age should children get dental sealants?accounts@newfoundmarketing.ca2025-09-17T02:04:42+00:00

At what age should children get dental sealants?

Sealants are most effective when applied soon after permanent molars come in, usually around ages 6 and 12. Dentists may also recommend them for teens or adults with deep grooves in their teeth that are prone to cavities.

How long do dental sealants last?accounts@newfoundmarketing.ca2025-09-17T02:03:16+00:00

How long do dental sealants last?

Sealants can protect teeth for 5–10 years, but they should be checked during regular dental visits. If they wear down or chip, they can be repaired or reapplied quickly.

What’s the difference between dental sealants and fillings?accounts@newfoundmarketing.ca2025-09-17T02:02:37+00:00

What’s the difference between dental sealants and fillings?

Sealants are a preventive treatment to keep cavities from forming, while fillings repair damage after a cavity has already developed. Sealants help you avoid the need for fillings later.

Are dental sealants covered under MCP?accounts@newfoundmarketing.ca2025-09-17T02:01:36+00:00

Are dental sealants covered under MCP?

Dental sealants are covered for children 12 and under under the MCP. Our team can confirm coverage before your appointment.

Do dental sealants eliminate the need for brushing?accounts@newfoundmarketing.ca2025-09-17T01:58:18+00:00

Do dental sealants eliminate the need for brushing?

No, brushing and flossing are still essential to maintain overall oral health.

Do dental sealants make teeth feel different?accounts@newfoundmarketing.ca2025-09-17T01:58:25+00:00

Do dental sealants make teeth feel different?

Sealants are thin and smooth, so any change in texture is minimal and temporary.

Are dental sealants only for kids?accounts@newfoundmarketing.ca2025-09-17T01:58:32+00:00

Are dental sealants only for kids?

No, adults without decay or fillings in their molars can also benefit from sealants.

Dental Sealants in St. John's

Dental sealants are a quick, painless, and effective way to protect your teeth.