Dental Sealants
Protect your teeth from decay with our top-notch Dental Sealants service. A quick and painless procedure that offers long-lasting benefits for your oral health.

What Are Dental Sealants?
Dental sealants serve as a protective shield for your teeth, particularly the molars and premolars. These sealants are a thin, plastic coating applied to the chewing surfaces of your teeth to prevent cavities and tooth decay. At Thomas Dentistry, we offer this quick and effective treatment to help you maintain a healthy smile for years to come.
The procedure is simple, painless, and can be completed in just one visit. Dental sealants are especially beneficial for children who are more prone to cavities, but adults can also take advantage of this preventive measure. It’s an investment in your oral health that can save you time and money in the long run.
Sealants are a proven method for reducing the risk of cavities. They act as a barrier, sealing off deep grooves that are hard to clean and are prone to develop plaque. With dental sealants, you can eat and drink with confidence, knowing that you’ve taken an extra step to protect your teeth.
How Do Dental Sealants Work?
Dental sealants work by forming a smooth surface over the natural grooves and pits in your teeth. This makes it difficult for food particles and bacteria to hide, reducing the risk of cavities. At Thomas Dentistry, the process is straightforward and can be broken down into a few simple steps.
The application of dental sealants is a quick and painless procedure. First, the tooth is cleaned and dried. Then, an acidic gel is applied to the tooth’s surface to roughen it up, helping the sealant bond better. Finally, the sealant is painted onto the tooth and hardened with a special light. The result is a durable barrier against decay.
Process of Applying Dental Sealants:
- Cleaning: The tooth is thoroughly cleaned to remove any plaque or food particles.
- Preparation: An acidic gel is applied to create a better bonding surface.
- Application: The sealant is painted onto the tooth’s surface.
- Curing: A special light is used to harden the sealant, securing it in place.
With dental sealants, you’re taking a proactive step in your oral health. They offer an additional layer of protection that complements regular brushing and flossing.

Understanding the cost of dental sealants is crucial for making an informed decision. At Thomas Dentistry, we strive to offer competitive pricing without compromising on quality. While the cost can vary depending on various factors such as the number of teeth needing sealants, we offer multiple payment options to make the process more affordable for you.
We believe that preventive care like dental sealants should be accessible to everyone. That’s why we accept a range of insurance plans and also offer financing options. Our team is more than happy to discuss costs and payment plans with you, ensuring you get the best care without any financial stress.
What our Patients are saying.
Read More Reviews
Read our reviews from all Patients.



Janelle Denson
Happy Client from Mercer Island Office
“I love coming here & I’m always greeted with smiles. It truly makes me feel great that the staff remembers my name & even though I visit every six months for my cleanings, our conversations pick up right where we left off. Marna, Rosie & Dr. Thomas are THEE BEST! I’d leave ten stars if I could.”
jason Kummerfeldt
Happy Client from Kirkland Office
“Tracie Was fantastic! Thank you”
Ankita Joshi
Happy Client from Kirkland Office
“Dr. Thomas is great. Very friendly and takes time to address your concerns. The staff is very helpful as well.”
Bill Sharpe
Happy Client from Mercer Island Office
“Thankful to have a dental team I can trust. Especially in 2021 Thanks all, Bill”
Megan Cosgrove
Happy Client from Mercer Island Office
“This is the best dentistry in the PNW! Molly at the front desk is so kind and always makes me feel like one of their VIP clients. The dental hygienists are all kind and Doctor Thomas is a straight shooter. Both myself and my Mom visit this office and couldn’t recommend it more!”
Nelson Lopez
Happy Client from Mercer Island Office
“Very very exceptional service, from making the appointment all the way to check out.”
sebastian gillbanks
Happy Client from Kirkland Office
“Very friendly staff and quality services”
Mark Detrow
Happy Client from Mercer Island Office
“Had such an amazing experience, and I would highly recommend coming here. I was incredibly thankful especially for how helpful and sweet Marna was. I typically do not like going to the dentist but she made me feel very comfortable and did a wonderful job! Will be back here soon!”
jules rasar
Happy Client from Kirkland Office
“I've looked for a dentist in the Seattle area for eight years. I'll never go anywhere else. The last year with Dr Thomas has been great. His staff is just as great. Very solid work.”
Dennis Ferrer
Happy Client from Kirkland Office
“Nice, smart and they do a great job”
Betsy Tutland
Happy Client from Mercer Island Office
“Dr. Thomas is an amazing dentist. At both his Mercer Island and Kirkland offices the staff is very warm and welcoming. Dr. Thomas has been my husband’s and my dentist for over 20 years and has done exceptional dental work. He makes his patients feel at ease with his caring, positive and fun personality. My grandchildren also see Dr. Thomas and he has an amazing way of helping them to feel comfortable and thus, cooperative. Dr. Thomas has the highest medical and ethical standards. I highly recommend seeing Dr. Thomas for any dental procedure.”
Faith Hutcherson
Happy Client from Kirkland Office
“Really enjoyed my experience here for a teeth whitening. The Kirkland location is great; it’s close to the freeway so it’s easy to find, and there was designated parking for patients. The staff (I’m talking from front desk to assistants to the doctor) were all very friendly and extremely efficient. I was talked through what they were doing so I felt at ease the entire time.”
Epic Heart Healing
Happy Client from Mercer Island Office
“As always Dr. McNabb did not fail to impress! We are very fortunate to have him as our dentist . But I also wanted to lift up NADIA who cleaned my teeth this time around and did such an AMAZING job. She is really good at what she does, and has such a calming and personable way about her. Highly recommend these guys!!!”
Alejandro
Happy Client from Mercer Island Office
“I can't recommend this practice enough. Everyone who works here is courteous, professional and extremely competent. 10/10”
Milo
Happy Client from Kirkland Office
“Great dentist! I came after Covid for my first checkup and cleaning, and ended up needing to have some childhood crowns replaced. During the process they were very thorough, even once getting a crown remade to have a perfect fit. One of those visits came in under the estimate. I appreciate the care they take in their practice. The staff are always nice and fun to talk to. Since my first series I’ve come here for over a year and have always had great experiences. Still need to floss more but the dentists and assistants are super nice about it! Also have great reminder system, and are very patient and thorough when working on insurance issues.”
Jordan Hansen
Happy Client from Kirkland Office
“Kathy D is fantastic and I definitely recommend her for routine cleaning. She is very thorough and cares for her patients. I greatly appreciate my visits.”
Susan Slagle
Happy Client from Kirkland Office
“I just recently transferred over to Thomas Dentistry and I’ve had two appointments so far, which I have had positive experiences with. The front desk is very friendly and accommodating, and they let you know about costs up front. I’ve had two different hygienists and they both have been good and thorough. I saw Dr. Jaswal both times and he has a very calm demeanor which puts you at ease. He also has a good sense of humor. Thomas Dentistry takes the unpleasantness out of going to the dentist!”
Sue Dwyer
Happy Client from Kirkland Office
“Great experience with hygienist today. Thank you for being so kind and not judgemental. Looking forward to a long relationship with this dental office.”
Marna Reams
Happy Client from Kirkland Office
“Cathy did an amazing job cleaning my teeth! She was informative on what is going on in my mouth! Looking forward to my next cleaning!”
Ronald Folse
Happy Client from Kirkland Office
“I’vy been a patient with Dr Troy for fifteen years and have always been impressed with him and his entire staff. I am 86 years old and was hesitant to make my visit, but his whole staff used the best practices to insure the safety in the office. Unfortunately , I will be moving to California ima month or so and will have to find a new dentist , and hope that they will be as good as Dr Thomas and his staff.”
Want to get started?
Thomas Dentistry accepts all major forms of dental insurance and offers an optional dental membership program to help pickup where dental insurance leaves off or for patients who lack dental insurance all together. Our dental membership program is far superior in cost and benefit than most forms of dental insurance!
Advantages of Opting for Dental Sealants
Dental sealants offer a host of advantages, especially when it comes to preventive dental care. At Thomas Dentistry, we recommend sealants as an effective way to ward off tooth decay and cavities. They act as a barrier, sealing off deep grooves where food particles often get trapped.
Not only do dental sealants help in maintaining oral health, but they also save you money in the long run. By preventing tooth decay, you avoid the need for more complex and costly dental procedures down the line.
Key Benefits:
- Prevents Tooth Decay: Sealants act as a barrier, keeping out bacteria and food particles.
- Quick and Painless: The application process takes only a few minutes per tooth and is completely pain-free.
- Cost-Effective: In the long run, sealants can save you money by reducing the need for fillings or more complex treatments.
- Long-Lasting: With proper care, dental sealants can last for several years.
- Ideal for All Ages: While commonly recommended for children, adults can also benefit from dental sealants.


Meet Dr. Thomas
15+ years of Experience in General & Family Dentistry
Dr. Troy Thomas opened Thomas Dentistry 15 years ago in Kirkland and provides each patient with individual care and attention, making certain they receive the highest quality of dentistry he has to offer. Dr. Thomas enjoys meeting with his patients each day and regards them as extended family members, doing his best to ensure they are as comfortable as possible. His goal as a dentist in Kirkland, WA is to deliver quality comprehensive dental care to patients in a welcoming and enjoyable environment. During his spare time, Dr. Thomas enjoys golf, traveling, hiking, and fishing.
Our FAQ's
Absolutely, dental sealants are a safe and effective method for preventing tooth decay. They are made from biocompatible materials that have undergone rigorous testing and have been approved by dental health organizations for long-term use.
Yes, adults can absolutely benefit from dental sealants. While they are commonly applied to children, adults who have deep grooves in their teeth or are prone to cavities can also take advantage of this preventive measure.
No, dental sealants and fluoride serve different but complementary roles in dental care. While sealants provide a physical barrier on the tooth surface, fluoride works at a chemical level to strengthen tooth enamel, making it more resistant to decay.
Yes, one of the advantages of dental sealants is that there are no post-application restrictions. You can eat and drink immediately after the procedure without any concerns.
We accept most insurance plans
We accept nearly all major dental insurance!
Lacking coverage or out of network? No problem! Our affordable dental membership plans that provides an
incredible value. Click to read more.





Thomas Dentistry Locations
Visit one of our neighborhood locations.
Contact Details
- 12910 Totem Lake Blvd. NE, Suite 105, Kirkland, WA 98034
- 425-821-2526
Contact Details
- 2955 80th Ave SE, Suite 105, Mercer Island, WA 98040
- 206-230-6632
Contact Details
- 4526 15th Ave NE, Seattle, WA 98105
- 206-523-8094
