259 Simcoe St S, Oshawa comfortcare@oshawadentist.com Open to 8pm Mon and Tue 905-725-6060

Comfortable family dentistry in Oshawa

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We welcome new patients every day.

259 Simcoe St S, at Gibb Street · call 905-725-6060

One smile at a time.

We are embedded in the roots of the community, serving Oshawa and the surrounding areas with a wide range of gentle care, from crowns and root canals to routine cleanings, extractions and more. Our staff is experienced and compassionate, and our goal is to make sure your visit is comfortable. We even offer sedation dentistry for patients who feel anxious about visiting the dentist.

Comprehensive dental services.

Whether you are looking for a clinic that offers preventive dentistry or dentists who provide restorative and cosmetic dental services, you can rely on us for care that ranges from cleaning and dental hygiene instructions to oral cancer screening and dentures. In addition to the treatments below we also offer Oral-B electronic toothbrushes and whitening kits.

Preventive and family care

Restorative and cosmetic care

Getting started

Less to sort out before you come in.

Direct insurance billing

We offer direct insurance billing and accept payments from insurance companies, so the claim is not yours to chase.

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CDCP patients welcome

Patients covered by the Canadian Dental Care Plan are welcome here. Call the office and we will go through the details.

Call for details

Open to 8pm Mon and Tue

Monday and Tuesday we are here until eight in the evening, and we offer same-day emergency appointments.

See full hours

Who we are

Serving Oshawa and Durham families.

You will find our office in the northeast corner of Simcoe Street South at Gibb Street, where friendly staff let patients relax in our care. We welcome new patients every day and look forward to seeing your bright smile in the near future.

Four dentists and a denturist

Our team

Dr. Roxana Popa, Dr. Stephanie Yap, Dr. Carrie Chen and Dr. Tina Tsai, with denturist Marianne Petropoulos. Between them they speak English, Cantonese and Mandarin.

Members and fellows

Credentials

Our dentists are active members of the Royal College of Dental Surgeons of Ontario, the Ontario Dental Association, the Canadian Dental Association and the Academy of General Dentistry.

Built around comfort

The office

A children's play area, an aquarium and LCD television screens in every room, so we cater to all ages. The office is wheelchair accessible.

An in-house denture clinic

Denturism

Marianne Petropoulos, our denturist, has been serving the Durham community since 2005, and brings an in-depth understanding of both the general and dental sciences.

Testimonials

Rated 4.8 on Google.

A few of the 194 Google reviews, in the patients' own words.

Very impressed with the care and treatment I received at Oshawa Dentist. I am a new patient here and wish I had found this gem of a place sooner. Thank you Dr. Popa and staff for taking such good care of me, you are all true professionals and amazing at what you do!
Sean Donaldson14/05/2026
Best Dentist and staff, I have had in the last 65 years. Oshawa Dentist took care of a very severe problem I was having with an abscess molar. Their work was flawless and Painless.
Ed Mc Donald12/06/2026
I have gone to this office since I was a child. Staff has always been great and friendly. Dr. Popa is a very skilled surgeon. Experienced no post surgery pain from my last surgery when it is usually expected, which to me is a signal of her precision and skill.
matt hossack12/01/2026

Your first visit

Three steps, and none of them are paperwork.

Getting started here is short. Here is exactly what happens between deciding to come in and sitting down in the chair.

  1. Ask for a time

    Give us a call, or send the request below and one of our representatives will be in touch with you as soon as possible.

  2. Arrive without the fuss

    We offer free parking and the office is wheelchair accessible, on the northeast corner of Simcoe Street South at Gibb Street.

  3. We bill your insurance

    We offer direct insurance billing and accept payments from insurance companies, and CDCP patients are welcome here.

Book an appointment

Book an appointment

Tell us what you need.

Send us a note and the front desk will be in touch to find you a time. We are open Monday to Friday, closed on weekends, and emergency services are available. If it is urgent, call the office instead and ask about a same-day emergency appointment.

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