Contribute to the vitality of our patients through their smile.

A dentist in La Prairie for over 28 years, Dr. Alain St-Onge and his team offers state-of-the-art treatments. As soon as you come in, you’ll notice that they put quality, efficiency, and humanness into everything they do.

Our treatments

We offer a complete range of dental treatments, check-ups, and cleanings all the way to more complex procedures, such as surgeries, implants, dentures, and cosmetic procedures.

General dentistry

At any age, dental and oral health start with hygiene and prevention. With us, a routine check-up is always serious and complete!


Dental implants come with numerous advantages: Beyond being able to anchor artificial teeth, they help prevent or reverse the deterioration of the jawbone.

Restoration and tooth replacement

To get your smile back! We offer a complete range of restoration services using techniques that allow crowns to be made without the inconvenience of impressions and temporary crowns.

Cosmetic procedures

Nowadays, there’s a lot of talk about the possibilities of cosmetic surgery. With cosmetic dentistry, we can also enhance your smile, which is such an essential element of your image and personality.

Preparatory and postoperative care

Everything you need to know about preoperative and postoperative instructions for all types of surgery.

3D impression

Among the latest technologies that have emerged in our field, 3D impressions are being used more and more.

Take advantage of a complete and professional procedure.


By staying abreast of the latest technologies, we can offer you the most efficient and painless treatments available in dentistry.

Digital X-ray

In dentistry and medicine alike, digital imaging has become an essential element in our diagnostic and treatment toolkits. With unparalleled precision, digital X-rays emit 80% less radiation than traditional X-rays.

Guided dental surgery

SimPlant® enables treatments that are perfectly tailored to the patient. It’s quick and efficient. No more surprises, complications, or long recoveries.

CEREC technology

Among its cutting-edge check-up and treatment instruments, the Centre dentaire St-Onge is proud to use the CEREC system, which produces replacement teeth (or tooth parts) in a single visit.

Pro-Max 3D technology

The Centre dentaire St-Onge is the only clinic in the region to use the ProMax 3D panoramic X-ray unit. A true marvel of technology, the ProMax 3D enables ultra-precise diagnosis.


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