Mississauga, ON · Preventive Protection

Fluoride & Sealants in Mississauga

Two of the most effective preventive tools in dentistry — applied in minutes, protective for years. Fluoride strengthens enamel; sealants shield the surfaces most vulnerable to cavities.

Overview

What are fluoride treatments and dental sealants?

Fluoride treatment involves applying a concentrated fluoride varnish or gel directly to the teeth to strengthen enamel and make it more resistant to acid attack from bacteria. Dental sealants are thin protective coatings painted onto the chewing surfaces of back teeth — the deep grooves where most cavities form — sealing out food and bacteria before they can cause decay.Both are fast, non-invasive, and clinically proven. The CDC reports that sealants reduce cavity risk in molars by up to 80%, and fluoride treatments are a CDA-recommended standard of care for children and higher-risk adults alike. At Tomken Dental, we apply both as part of routine preventive visits — a small investment that consistently avoids much larger treatment down the road.

Strengthen Enamel

Fluoride remineralizes areas of early enamel breakdown — reversing the earliest stages of decay before a cavity forms. Regular professional fluoride application is especially important for children with developing teeth and adults with a history of frequent cavities.

Seal Out Cavities

The deep pits and fissures on the chewing surfaces of molars are nearly impossible to clean thoroughly with a toothbrush. Sealants fill and seal these grooves, creating a smooth surface that sheds food and plaque — preventing the most common site of cavity formation.

Fast, Non-Invasive, Long-Lasting

Fluoride varnish is applied in minutes with no discomfort. Sealants are painted on and cured with a light — no drilling, no needles. Each sealant can protect a tooth for five to ten years, and both treatments are a fraction of the cost of a filling.

Who This Is For

Who benefits from fluoride and sealants?

These treatments are most impactful for children, but adults with certain risk factors benefit meaningfully as well. Preventive care is always more affordable — and more comfortable — than treating the cavities it prevents.

Children With New Permanent Molars

The ideal time to apply sealants is shortly after the first and second permanent molars erupt — around ages six to seven and twelve to thirteen respectively. Sealing molars immediately after eruption prevents decay from ever getting a foothold in those vulnerable grooves.

Cavity-Prone Children & Teens

Children who have had cavities, have deep grooves in their teeth, or who struggle with consistent brushing benefit most from both fluoride and sealants. These tools compensate for the limitations of home care at an age when technique and consistency are still developing.

Adults With Elevated Cavity Risk

Adults managing dry mouth (from medications or systemic conditions), undergoing cancer treatment, wearing orthodontic appliances, or with a history of frequent decay benefit from professional fluoride at every cleaning appointment — not just in childhood.

Patients With Exposed Root Surfaces

Gum recession exposes root surfaces that don’t have the protective enamel layer of the crown. Roots are significantly more cavity-prone than enamel. Fluoride treatment for adults with recession is a straightforward, evidence-based way to reduce root caries risk.

What To Expect

What happens during fluoride and sealant application.

Assessment During Cleaning

Fluoride and sealants are typically applied at the end of a routine cleaning appointment. We assess whether fluoride application is appropriate based on your oral health history and risk factors. For sealants, we examine which molars have deep grooves and note any that are already sealed or have small restorations.

Fluoride Application

Fluoride varnish is painted directly onto the tooth surfaces with a small brush — the process takes less than two minutes. The varnish is sticky but dries quickly. We ask you to avoid eating, drinking, or rinsing for 30 minutes afterward to allow maximum uptake into the enamel.

Sealant Application

The tooth surface is cleaned and dried, then a mild etching solution is applied briefly to create a surface the sealant can bond to. The sealant liquid is painted into the grooves and hardened with a curing light in seconds. No needles, no drilling. The whole process takes two to three minutes per tooth.

Bite Check

After sealant placement, we check your bite to ensure the sealant isn’t creating any high spots. Sealants settle into a comfortable position almost immediately — most children don’t notice them within a day or two.

Monitoring at Future Visits

We check existing sealants at every recall visit to confirm they’re intact and fully covering the grooves. If a sealant chips or wears, it can be easily reapplied. Fluoride varnish is reapplied at the appropriate interval based on your individual risk profile.

Honest Expectations

Benefits and realistic considerations.

What You Gain

Things to Know

Preparation & Aftercare

Before, during, and after treatment.

Before Your Appointment

No special preparation is needed. Fluoride and sealants are applied at the end of a routine cleaning, so your regular brushing and flossing routine is sufficient. Mention any concerns or questions at the start of your appointment — especially if your child is anxious — so we can take extra time to explain what’s happening.

During the Appointment

Both treatments are comfortable and quick. We explain each step to children before doing it — “show, tell, do” — so nothing is a surprise. The etching solution used for sealants may have a mildly sour taste, which we warn patients about in advance. The fluoride varnish has a pleasant taste and hardens within seconds of contact.

Aftercare

After fluoride varnish, avoid eating, drinking, or rinsing for 30 minutes to let the fluoride absorb fully. Avoid hot foods and beverages on the day of application. After sealant placement, you can eat normally within minutes — the sealant is fully hardened by the curing light. Avoid very sticky or chewy foods for the remainder of the day.

At-Home Care

Protecting your teeth between preventive visits.

Fluoride and sealants work best as part of a complete preventive routine. These habits reinforce the protection we apply in clinic.

Brush twice daily with fluoride toothpaste — this is the foundation of enamel protection

Floss once daily — sealants protect chewing surfaces, but spaces between teeth still need attention

Limit sugary snacks and drinks, which feed cavity-causing bacteria

Drink fluoridated water where available — it provides low-level ongoing enamel support

Keep all scheduled recall appointments so we can check sealant integrity and reapply fluoride on schedule

Related Services

Services that complement fluoride and sealants.

Why Tomken Dental

Why Mississauga families trust us for preventive care.

Individualized Risk Assessment

We don’t apply fluoride or sealants on a one-size-fits-all schedule. We assess each patient’s cavity risk, medical history, and existing restorations to determine what’s appropriate and how often. Preventive care at Tomken Dental is personalized, not procedural.

Child-Friendly Approach

Our team is experienced at making preventive treatments comfortable and non-threatening for young patients. We take the time to explain and demonstrate before we proceed — building the kind of positive experience that shapes how a child feels about dental care for life.

Prevention as a Practice Value

We believe the best dental treatment is the treatment you never need. Fluoride and sealants are evidence-based tools that consistently reduce the burden of dental disease — and we recommend them when they’re genuinely appropriate, not as routine add-ons.

Common Questions

Fluoride & sealants FAQ.

At what age should my child get sealants?

The best time to apply sealants is shortly after the first permanent molars erupt — usually around age six to seven — and again when the second molars come in around age twelve to thirteen. Applying sealants immediately after eruption provides the greatest long-term protection.

Are fluoride treatments safe for children?

Yes — professional fluoride varnish is safe for children at any age, including toddlers. The concentration used in varnish is carefully controlled and the small amount applied is far below any threshold of concern. Fluoride treatment is a CDA-recommended standard of care for children.

How long do sealants last?

Sealants typically last five to ten years with proper care. We check them at every recall visit and reapply as needed if a sealant chips or wears. The cost of reapplication is minimal compared to the cost of treating a cavity in a tooth that wasn’t sealed.

Do adults need fluoride treatments?

Adults with a history of frequent cavities, dry mouth, exposed root surfaces, or who are undergoing cancer treatment benefit from professional fluoride at every cleaning visit. We assess your risk profile and recommend fluoride for adults when the evidence supports it.

Are sealants covered by insurance?

Many plans cover sealants for children up to a certain age — commonly up to age seventeen or eighteen. Coverage for adults varies. We check your specific benefits before application and let you know what’s covered. The out-of-pocket cost is modest and consistently far less than a filling. Call (647) 692-6053 to ask.

Prevent the problem before it starts.

Ask about fluoride and sealants at your next cleaning visit. Book today — call (647) 692-6053 or request online.