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Your partners in bettering your oral health
Providing Dental Care in La Prairie
Contact us for help finding an appointment that fits your schedule.
Our mission is to treat you like a member of our family.
Our dental clinic welcomes patients from La Prairie, Sainte-Catherine, Carignan, Boucherville, Varennes, and surrounding areas. We look forward to meeting you!
Welcome to Centre Dentaire St-Onge
Our team provides personalized dental care to our patients.
We offer a wide range of services to help you achieve optimal oral health. Appointment wait times are short, and families can conveniently book multiple visits at the same time. With dental technology and sedation options, we strive ensure every visit is as comfortable as it is effective.
Meet Our La Prairie Dentists
Aiming for a healthier smile? Our team of dental professionals are here to help.
Our Dentists-
Dr Alain St-Onge
General Dentist
A graduate of the Université de Montréal, Dr. St-Onge began practicing general dentistry in 1987. He quickly perfected his knowledge and was introduced to implantology, then to prosthodontics.
For 30 years, he has followed various specialized training courses here and in the United States to offer his patients cutting-edge treatments.
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Dr Laure Mirra Payment-Lapointe
General Dentist
Dr. Payment-Lapointe obtained her Doctor of Dental Medicine from the Université de Montréal in 2018. It was with great pleasure that she joined the team at Centre dentaire St-Onge in June 2019 as a general dentist.
Winner of the Vice-Dean of Undergraduate Studies Award for her professionalism, Dr. Payment-Lapointe fosters a relationship of trust with her patients. She prioritizes continuous education to stay up-to-date with new technologies in the field. She deeply cares about her patients' oral health and provides quality treatments with gentleness.
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Dr Antoine Pelletier
General Dentist
A native of La Prairie, Dr. Pelletier obtained his doctorate in Dental Medicine from Université Laval (Quebec) and joined the Centre dentaire St-Onge team as a general dentist.
With an interest in all branches of dentistry, Dr. Pelletier is attentive to your requests, and takes the time to properly assess your dental and oral health needs.
Having completed two years of kinesiology at the Université de Montréal, Dr. Pelletier is also a fan of physical activity, practicing many sports, including alpine skiing. He is also passionate about music and plays several instruments. He is pleased to invite you to meet with him.
Conveniently Located Office
In-House Dental Laboratory
Evening Appointments
Direct Billing to Insurance
Financing Options
At Centre Dentaire St-Onge, we offer flexible financing options so you can focus on getting the dental care you need.




Dental Implants in La Prairie
Dental implants provide a long-lasting solution to replace one or more missing teeth, helping you regain a natural, stable, and comfortable smile.
Dental implants feel very similar to natural teeth and help preserve jawbone health. They improve everyday comfort by making it easier to chew, speak, and feel confident. Following a comprehensive evaluation, a personalized treatment plan is created based on your needs and lifestyle.
Whether tooth loss is due to an accident, decay, or simply aging, dental implants offer a strong, reliable long-term solution delivered in a professional and reassuring environment.
Find Centre Dentaire St-Onge
Our clinic is located on Montreal’s South Shore, in La Prairie, and welcomes patients from Brossard, Candiac, Saint-Constant, and Delson. Easily accessible by public transit, we also offer free on-site parking for your convenience.
