Dental Sealants & Cavity Prevention
Dental sealants are a simple and effective preventive treatment designed to help protect teeth from cavities, especially the deep grooves and pits on the chewing surfaces of back teeth.
At ALH Dental Hygiene Clinic, we may recommend dental sealants for children, teens, and some adults who have deep grooves or are at higher risk of developing cavities.
What Are Dental Sealants?
Back teeth, especially molars, often have deep grooves and pits on their chewing surfaces.
These areas can be difficult to clean thoroughly with a toothbrush, allowing plaque and food debris to accumulate and increasing the risk of cavities.
Dental sealants are thin protective coatings placed over these grooves to create a smoother surface that is easier to keep clean.
How Do Dental Sealants Help Prevent Cavities?
Sealants act as a protective barrier over the pits and fissures of the tooth.
By covering areas where plaque and food particles can easily become trapped, sealants can help reduce the risk of decay developing in these vulnerable areas.
Sealants are one part of preventive dental care and work best together with:
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Regular brushing with fluoride toothpaste
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Daily flossing
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Healthy eating habits
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Professional dental hygiene visits
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Fluoride treatment when appropriate
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Routine dental examinations
Who May Benefit from Dental Sealants?
Dental sealants are commonly recommended for:
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Children with newly erupted permanent molars
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Children or teens with deep pits and grooves
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Patients with a higher risk of cavities
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Patients who have difficulty cleaning the chewing surfaces of back teeth
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Some adults with deep, cavity-free grooves that remain at risk of decay
Not every tooth needs a sealant. Our dental team will assess the tooth surface and individual cavity risk before making a recommendation.
Are Sealants Only for Children?
No.
Although sealants are commonly used for children and teenagers, some adults may also benefit from them.
If an adult tooth has deep grooves, is free from decay, and is considered at higher risk of developing a cavity, a sealant may still be recommended.
What Happens During a Sealant Appointment?
Placing a dental sealant is usually a simple and non-invasive procedure.
The appointment may include:
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Cleaning the tooth surface
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Preparing the chewing surface so the sealant can bond properly
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Applying the sealant material into the pits and grooves
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Hardening the material
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Checking the sealant and your bite
The procedure is generally completed without drilling or local anesthetic.
Does Getting a Dental Sealant Hurt?
Dental sealants are generally painless.
Because the sealant is applied to the outside surface of the tooth, injections and drilling are usually not required.
Most children and adults tolerate the procedure very well.
How Long Do Dental Sealants Last?
Sealants can remain effective for several years, but they are not permanent.
Over time, they may wear down, chip, or partially come away from the tooth.
For this reason, sealants should be checked during routine dental visits and may need to be repaired or reapplied when appropriate.
Can a Sealant Be Placed on a Tooth That Already Has a Cavity?
Sealants are primarily used to help prevent cavities from developing in susceptible grooves.
If a tooth already has decay, the appropriate treatment depends on how advanced the cavity is and the condition of the tooth.
A sealant should not be considered a substitute for necessary restorative dental treatment.
Our team will assess the tooth and recommend the most appropriate option.
Do Sealants Replace Brushing and Flossing?
No.
Dental sealants protect only certain areas of the tooth, mainly the pits and grooves on chewing surfaces.
They do not protect all tooth surfaces and do not replace:
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Brushing
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Flossing
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Fluoride use
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Professional dental care
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Regular dental examinations
Good daily oral hygiene remains essential even after sealants are placed.
Sealants and Fluoride: What Is the Difference?
Sealants and fluoride both help prevent cavities, but they work in different ways.
Dental sealants create a physical protective barrier over deep pits and grooves.
Fluoride helps strengthen tooth enamel and make teeth more resistant to acid and decay.
Depending on your individual cavity risk, both may be recommended as part of a preventive care plan.
Protect Teeth Before Cavities Start
Preventing tooth decay is often easier and less invasive than treating a cavity after it develops.
Dental sealants can provide additional protection for teeth with deep grooves or other areas that are more vulnerable to decay.
Ask our team whether dental sealants may be appropriate for you or your child.