Dental sealants are a simple, protective coating placed on the chewing surfaces of teeth to help prevent cavities. They work by covering the tiny grooves in your teeth where food and bacteria tend to get stuck, making it harder for decay to form in the first place. Sealants are commonly recommended for children and teens, though adults at higher risk for cavities can benefit from them too.
At Estrella Mountain Dentistry in Goodyear, AZ, we get asked about sealants often, especially from parents wondering if their child needs them. This guide walks through exactly what sealants are, how they work, who should consider getting them, and whether they are truly worth it.
What Are Dental Sealants?
Dental sealants are a thin, protective coating applied to the chewing surfaces of teeth, most often the back molars, to help block out food particles and bacteria. They are typically made from a type of dental resin, a durable plastic material designed to bond directly to the tooth’s surface.
Dentists recommend sealants because back teeth have deep grooves and pits that are naturally hard to clean, even with regular brushing. These small spaces make an ideal hiding spot for bacteria and leftover food, which is exactly what sealants are designed to prevent.
How Do Dental Sealants Work?
Sealants work by creating a smooth, protective barrier over the chewing surface of a tooth. Once applied, this barrier blocks food and bacteria from settling into the deep grooves where cavities most often begin.
Molars benefit the most from sealants, since they have the deepest grooves and are used constantly for chewing, which makes them more prone to trapping debris. By sealing off these vulnerable areas, sealants help prevent the buildup of plaque and bacteria that leads to tooth decay, giving your teeth an extra layer of defense beyond regular brushing and flossing.
What Is the Purpose of Dental Sealants?
The main goal of dental sealants is simple, they exist to protect your teeth before problems even start. Sealants work by covering the deep grooves and pits on chewing surfaces, the exact spots where food and bacteria tend to get stuck and where cavities most often begin. By blocking off these vulnerable areas early, sealants help stop decay before it has a chance to form.
Beyond preventing decay, sealants also help protect the parts of your teeth that take on the most daily wear from chewing. Since they stop problems before they start, sealants can reduce how often you need more involved dental treatments down the road, like fillings or other repair work.
Who Should Get Dental Sealants?
While sealants are often associated with kids, several groups can benefit from them.
Children: Children are the most common candidates for sealants, since their permanent molars are still new and highly susceptible to decay. Applying sealants early helps protect these teeth right from the start.
Teenagers: Teenagers often get sealants on their second set of molars, which typically come in around age 12. Since teens may not always keep up with perfect brushing habits, sealants add an extra layer of protection during these years.
Adults at High Risk for Cavities: Some adults, especially those with a history of frequent cavities or difficulty maintaining oral hygiene, may also benefit from sealants, even if they did not get them as children.
People With Deep Grooves in Their Teeth: Anyone with unusually deep grooves or pits in their molars may be a good candidate, regardless of age, since these teeth are naturally harder to clean thoroughly.
When Should Children Get Dental Sealants?
Timing plays a big role in how much benefit a child gets from dental sealants. The best age is usually right when the first and second molars come in, since these teeth are brand new and have not yet been exposed to years of daily wear and bacteria buildup.
First molars typically appear around age 6, making this an ideal time to consider sealants for the first time. Second molars usually come in a bit later, around age 12, which is when many children get a second round of sealants applied to protect these newer teeth as well.
Early protection matters because newly emerged teeth are at their most vulnerable in the months and years right after they come in, before a child has fully developed strong, consistent brushing habits. Getting sealants applied close to when these molars erupt gives kids the best chance at avoiding cavities during these key developmental years.
How Are Dental Sealants Applied?
Getting sealants applied is a quick and simple process.
Cleaning the Tooth The tooth is first thoroughly cleaned to remove any plaque, food particles, or debris, ensuring the surface is completely clean before treatment begins.
Preparing the Tooth Surface A special solution is applied to slightly roughen the tooth’s surface, which helps the sealant bond more effectively once it is placed.
Applying the Sealant The liquid sealant material is carefully painted onto the grooves and pits of the tooth, filling in the areas most prone to trapping bacteria.
Hardening With a Special Light A special curing light is used to quickly harden the sealant, turning it into a solid, protective coating within seconds.
Final Bite Check The dentist checks your bite to make sure the sealant feels comfortable and does not interfere with how your teeth come together when chewing.
How Long Do Dental Sealants Last?
Sealants are durable, but they do not last forever. On average, they can hold up for anywhere from three to five years, though some last even longer depending on how well they are cared for and how much daily wear they experience from chewing.
Over time, signs that a sealant may need replacement include visible wear, chipping, or a rough feeling on the tooth’s surface. This is why regular dental checkups matter so much, since your dentist can monitor the condition of your sealants and reapply them when needed to keep your teeth fully protected.
Are Dental Sealants Safe?
Dental sealants are considered a safe and widely used preventive treatment, backed by years of use in dental offices. Most sealants are made from FDA-approved materials that have been carefully tested for safety before being used in dental care. Some people raise concerns about BPA, a chemical sometimes found in plastics, but studies show that any BPA exposure from sealants is extremely minimal.
Because of this, sealants are considered safe for both children and adults when applied by a trained dental professional. The small amount of exposure involved is far outweighed by the protective benefits sealants provide against cavities and long-term tooth decay.
What Are the Benefits of Dental Sealants?
Sealants offer several clear advantages for anyone looking to protect their teeth from cavities.
- Prevent cavities: Sealants cover the deep grooves in your teeth where decay is most likely to start, blocking out food and bacteria before problems begin.
- Save money on future treatment: Since sealants help stop cavities before they form, they can reduce the need for costlier treatments like fillings down the road.
- Quick and painless procedure: Getting sealants applied takes just a few minutes per tooth, with no drilling, numbing, or discomfort involved.
- Long-lasting protection: Once applied, sealants can protect your teeth for three to five years or longer with proper care and regular checkups.
Are There Any Disadvantages of Dental Sealants?
While sealants offer a lot of benefits, there are a few things worth keeping in mind before getting them.
Can Wear Down Over Time
Sealants are durable, but daily chewing and normal wear can gradually thin them out or cause small chips. This is a natural part of using them, not a sign that something went wrong, but it does mean they will eventually need to be checked and possibly reapplied to stay fully effective.
Not Suitable for Every Tooth
Sealants work best on teeth with deep grooves and pits, like molars. Teeth with smoother surfaces may not benefit as much, since there are fewer hard to clean areas for the sealant to actually protect.
Require Routine Monitoring
Because sealants can wear down or chip over time, they need to be checked during regular dental visits. Without this monitoring, a worn sealant could go unnoticed, which would reduce the protection it was originally meant to provide.
Can Dental Sealants Be Applied Over Cavities or Fillings?
This depends on the specific situation of the tooth in question. Sealants can sometimes be applied over small, early cavities, since sealing over minor decay in its earliest stage may help stop it from progressing further. They can also be used alongside existing fillings in certain cases, depending on the location and condition of the filling. However, sealants are not recommended for teeth with larger cavities or more advanced decay, since these situations usually require a filling or other direct treatment first.
Dental Sealants vs Fillings
Here’s a quick comparison to help you understand how sealants and fillings serve different purposes.
|
Dental Sealants |
Fillings |
|
Prevent cavities |
Treat cavities |
|
Applied to healthy teeth |
Used after decay develops |
| Non-invasive |
Requires removal of decay |
How Much Do Dental Sealants Cost?
Cost is often one of the first questions people ask about sealants. The total price can vary quite a bit depending on things like your geographic location, the number of teeth being treated, and whether the sealants are applied during a routine dental visit or as a separate appointment.
Many dental insurance plans offer at least partial coverage for sealants, especially for children, since they are considered a preventive treatment. It is always a good idea to check with your specific insurance provider or dental office to get an accurate sense of what your visit might cost.
How to Care for Teeth After Getting Sealants
Caring for your teeth after getting sealants is simple and does not require any major changes to your routine. You can eat normally right after treatment, since sealants harden almost immediately under the curing light and are ready for everyday use as soon as you leave the office.
It is still important to keep up with regular brushing and flossing, since sealants protect specific areas of your teeth but do not replace good overall oral hygiene. Scheduling regular dental visits also matters, since your dentist can check the condition of your sealants over time and catch any wear before it becomes a bigger problem.
Are Dental Sealants Worth It?
For most people, the answer is yes. When you compare the low cost of sealants to the potential expense of treating a cavity later, sealants often come out as the more affordable option in the long run. They are also highly effective at preventing cavities, particularly on molars that are naturally hard to clean. Children, teens, and adults with deep grooves or a higher risk of cavities tend to benefit the most, making sealants a smart, simple step toward protecting long-term oral health.
Conclusion
Dental sealants are a simple, affordable way to protect your teeth before problems even start. They work quietly in the background, covering the hard to clean grooves in your molars and giving you one more layer of defense against cavities. Whether you are considering sealants for your child or wondering if they make sense for yourself, they are a small step that can lead to real savings and healthier teeth over time.
Schedule Your Sealant Consultation in Goodyear, AZ
Ready to find out if dental sealants are right for you or your child? Estrella Mountain Dentistry in Goodyear, AZ offers sealant treatments as part of our commitment to preventive dental care for the whole family. Contact us today to schedule a visit and take a simple step toward protecting your smile for years to come.
Frequently Asked Questions
What are dental sealants made of?
Dental sealants are typically made from a type of dental resin, a durable plastic material designed to bond directly to the tooth’s surface. Once applied, this material hardens into a smooth, protective layer that fills in the deep grooves of your molars. This helps create a barrier that keeps food and bacteria from settling into areas that are naturally hard to clean, even with regular brushing.
Do dental sealants hurt?
No, applying sealants is a painless process from start to finish. There is no drilling, numbing, or anesthesia involved, since the procedure only involves cleaning the tooth and painting on the sealant material. Most people, including young children, find the process quick and comfortable, often taking just a few minutes per tooth.
Can adults get dental sealants?
Yes, adults can absolutely get dental sealants, even if they never had them as a child. This is especially useful for adults who are at higher risk for cavities, have naturally deep grooves in their molars, or struggle with maintaining consistent oral hygiene. Age alone does not disqualify someone from benefiting from this protective treatment.
How long do dental sealants last?
Sealants typically last between three and five years, though many can last even longer with good care and regular dental visits. Over time, normal chewing and wear can cause sealants to thin out or chip slightly, which is why routine checkups matter. Your dentist can monitor their condition and reapply sealants as needed to keep your teeth fully protected.
Are dental sealants covered by insurance?
Many dental insurance plans offer at least partial coverage for sealants, particularly for children, since they are classified as a preventive treatment rather than a cosmetic one. Coverage details can vary quite a bit depending on your specific plan and provider. It is always worth checking directly with your insurance company or dental office to get a clear picture of your expected costs.
