top of page

Request Your Appointment Online

We believe the science of dentistry should be practised as an art. We know that no two smiles are alike, and our commitment to personalized, compassionate care begins the moment you reach out to us. 

Reliable and Professional Dentistry in Sarnia

Great Lakes Dental is a family, general and cosmetic dentistry practice where every team member strives to offer patients the most minimally invasive dentistry possible. Our commitment to you and your family is to provide comprehensive dentistry in Sarnia and to ensure you are receiving the highest quality care.


Dr. Thomm and her team works together to ensure that you are getting the most out of your dental appointments. It is our full-service, patient-centred approach that makes us the best choice for dental care in Sarnia. Contact us today to discuss your dental care needs or to schedule your next dental appointment: 519-542-3427. For more information, you can also send us an email.


We are always welcoming new patients!

What Makes Us Different

Dr. Jennifer Thomm’s goal is to provide only the highest quality dental services to the residents of Sarnia-Lambton and other nearby communities. Located in Unit B-1323 Michigan Ave, Sarnia, our office provides general and family and cosmetic dentistry services for both adults and children. 


Dr. Jennifer Thomm’s office includes some of the most modern dental equipment available in the industry. Our technology includes CAD/CAM CEREC in-office restoration system, allowing patients the opportunity to have a broken tooth or cosmetic procedure completed in as little as one hour. Dr. Thomm also offers digital x-rays, Vibe comfort system, iPads, satellite TV, kids programming, iPods, Wi-Fi, coffee, water and snacks. 


For those patients who may experience fear during their dental treatment, we can offer Nitrous Oxide, preloaded audio relaxation, in-office entertainment, Dental Vibe comfort injection system and various other comforting techniques. We are open 5 days a week, and have a 24/7 contact line to deal with any after-hours emergency situations. Our staff is trained to deal with all types of dental issues, from simple consultations to dental emergencies. Patients can walk in at any time to consult Dr. Jennifer Thomm regarding simple tips on how to take better care of their teeth. 


Our Sarnia dental office is perfect for anybody who may be seeking dentistry services in Sarnia – Lambton and other nearby communities, such as Corunna, Petrolia, Brights Grove and Wallaceburg. Our high-quality of service, comfortable office, payment flexibility and convenience means that you’re able to receive the dental services you need when it’s needed most.



About Great Lakes Dental

Great Lakes Dental is led by Dr. Jennifer Thomm, a well-respected and long-serving dentist of Sarnia – Lambton (since 2003). Dr. Jennifer Thomm and her team of dental professionals are dedicated to providing only the highest quality of both oral health services and customer service. Great Lakes Dental offers all major dental services, including root canals, cleanings, fillings, crowns, Invisalign, zoom whitening, bridges, sealants, smile makeovers and more. Dr. Jennifer Thomm and her team pride themselves on offering each and every patient with top-notch dentistry in a relaxed and comfortable spa-like setting. Visit us today to learn how easy it can be to have the smile and self-confidence you’ve always dreamed of.

Professional Affiliations

Ontario Dental Association
Canadian Dental Association
Royal College of Dental Surgeons of Ontario

About Our Owner

Great Lakes Dental has been owned and operated by Dr. Jennifer Thomm since 2008.


Family and General Dentistry

From dental check-ups and hygiene to oral cancer screenings and dental fillings, we do them all.


Enhance Your Smile

Give your precious smile a boost with our cosmetic treatments such as teeth whitening and white fillings.

bottom of page