Your Trusted Local Oshawa Dentist For Families, Kids & All Of Your Dental Needs

From routine cleanings to mini dental implants and more, we're all about happy clients, healthy teeth & beautiful smiles!

RDC Dental is pleased to announce that, as of July 8, 2024, we will be participating in The Canadian Dental Care Plan (CDCP).

If you have your Sunlife™ dental card, please call our office at (905) 433-0737 to schedule your appointment.

For More Details & Specific Information, Please Visit The CDCP Website:

New Oshawa Dental Patients Welcome
New Oshawa Dental Patients Welcome

Looking For An Oshawa-area Dentist?

We're Accepting New Dental Patients!

Whether you’re new to the Oshawa area or just feel the need for a change, we’re happy to welcome you and would love to have the opportunity to show you why RDC Dental is your best choice for all of your – and your family’s – dental needs.

Getting started is as simple as sending us a message and we’ll take care of the rest!

With RDC, You'll Get More Than Just Amazing Family Dental Services:

Complete Services

We truly are your one-stop-dental-needs shop.

Judgement Free

We're here to help and no one will criticize you.

Everyone's Welcome

We're all about maintaining an inclusive environment.

Simple Billing

We're connected to all of the major insurance companies.

We're Accessible

We doesn't our clinic with your comfort in mind.

Free Private Parking

Forget about street parking, fees, tickets & long walks.

Free WiFi

Fast & free, use our office WiFi and save your data.

We're Open Late

You can schedule convenient evening appointments.

And Our Clients Have Wonderful Things To Say:

safe, helpful, knowledgeable, does everything to make your visit as friendly and accommodating as possible.
Andy Bondar
Andy Bondar
RDC is by far, the BEST place for all your dental needs. Dr. Peter Riordan is a compassionate dentist who really takes pride in his work and cares for his patients as if they were family. His staff is top notch and will do everything to accommodate the patients. Julie and Sarah are beyond amazing and Audrey and Amy are beyond fantastic! As a patient who has high dental needs, Dr. Riordan and his staff are always there to calm me and help in any way they can even if it’s after hours. Thank you for all you do RDC!
Michael Fronte
Michael Fronte
This is an excellent dental clinic. Dr. Riordan and his staff are highly professional and always a pleasure to deal with. The office also seems very well managed.
Sharon Rabenda
Sharon Rabenda
The entire team at RDC is fantastic! Friendly, responsive and thorough. My first visit was in 2018, where Dr. Riordan quickly determined that I needed tooth restoration in the form of crowns. My teeth now look fabulous and I have received many compliments! After seeing various dentists in Toronto without any suggestions of restoration, I feel grateful to have found a dentist that was concerned about the health of my teeth and their appearance.
DARCY urquhart
DARCY urquhart
RDC Dental care is awesome from time you enter until you leave they call you by your name and are just very good people I highly recommend this place thank you for excellent work
Annie Lyall
Annie Lyall
I always have an incredible experience at RDC Dental, I've been going there since I was a child and now I bring my autistic son there. We have always been treated exceptionally well and they are incredible with my difficult child. I highly recommend them to family and friends.
Susan Vass
Susan Vass
Dr Riordan and his team are stellar:) My husband needed full mouth reconstruction. We had "shopped around" everywhere from Mexico to Costa and 4 dentists here but the $50,000 price tag was more than our wallet could handle. After exhausting research the internet led us to Dr Riordan and we couldn't be more pleased with both the savings and the workmanship. My husband has soooo many compliments. He told the Dr. he wasn't concerned about being in any toothpaste commercials...but he could be now...Thanks Dr Riordan and team:)
Marysha Finlay
Marysha Finlay
Ive been going to RDC for almost 25 years now, the staff is BEYOND amazing, they always remember who i am, ask me how im doing and always make me feel at home, they are very caring and understanding as well. The dental assistants are all phenomenal, i absolutely adore Audrey and Terri, they are so sweet and always making sure i feel comfortable as i get anxiety at times. Ive had the pleasure of being with Dr.Riordan for 20+ years he is great!!! I recently have had Dr.Forbes doing work on me, they BOTH are AMAZING, HUGE koodos to Dr.Forbes for the gentle work shes been doing and helping me through, she always makes sure im okay and i really appreciate her making me feel so comfortable, im super thankful for everyone whos helped me out there, thank you all :)

Trusted Local Oshawa Dentists

Welcome to the Dental Office of Dr. Peter Riordan!

We offer complete family dentistry, the way it should be.

At Riordan Dental Care, it is our mission to provide the best dentistry for kids, families and adults with the highest level of dentistry services possible.

Whether it is our state-of-art facility and equipment, or our continued efforts to further our own education on advanced techniques of the industry, our Oshawa Dentist office and staff are devoted to our craft and to our patients.

We will walk you through every step of the patient process, from your initial consultation to completed treatment, and we look forward to helping you and your loved ones achieve your dental goals ahead.

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Everything You Need Is At Our Clinic.

Our comprehensive services allow you to receive all needed dental care right here in our state-of-art office – from dental cleanings and fillings to dental implants, clear aligners, emergency dental surgeries and more.

We Use A Patient-Focused Approach.

Every patient’s treatment plan perfectly matches his or her personal needs, lifestyle and goals (even if it’s been years since your last visit to the dentist).

Our comfortable office, caring team, and minimally-invasive treatments will help to keep you at ease during your visits.

Our Premium Dental Hygiene Package covers you for 18 months and includes the following:

And all for just $498!

Dentists Durham Region No Benefits Dental Coverage

Don't Want to Commit?
That's OK, Too!

Schedule A Day To Come-In For A Thorough, One-Time Cleaning!

For Just One Low Payment Of…


Need A Second Opinion?

Join Dr. Riordan on a 20-minute video dental consultation where he will help you explore your treatment options and guide you to making an informed decision.

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Mini Dental Implants Oshawa ON Dentist
Do You Have Missing Teeth? Loose Dentures?

Our Mini Dental Implants Are The Solution!

When compared to traditional dental implants, mini dental implants (MDIs) are cheaper, last longer and can be completed in just one visit!

They're Much Cheaper

In most cases, mini dental implants and the associated procedures cost 50% - 66% less than traditional dental implants.

They Heal Quicker

It's a less invasive procedure that results in faster healing times, virtually no discomfort, and less visits to the dental office.

They Save Bone Structure

When you have missing teeth, you've probably lost some bone structure in your jaw. Mini dental implants will stop the bone loss.

They're Half The Size

Mini dental implants are about half the size of traditional implants, and therefore don’t require extensive, painful surgery.

Titanium Means No Decay

Being made out of titanium, mini dental implants are not subject to periodontal disease or decay and will last for years.

Results Are Immediate

With mini implants, you can forget about waiting months - or even longer in some cases - and get yours almost immediately.

Want to learn more?

Family Dental Care In Oshawa & Durham Region

Comprehensive Dental Services

Our office has a wide range of dental services designed to keep your smile happy and healthy. Arrange even just one appointment with us and you’ll see the difference.

Mini Dental Implants

Mini Dental Implants are a fast,  affordable and effective alternative to traditional dental implants.

Dental Implants

Dental implants are a great way to replace missing teeth and avoid the need for getting partial dentures.

Sleep Apnea Devices

Our affordable and custom oral dental appliances (snore guards) are effective for sleep apnea treatment.

Teeth Whitening

Your brighter & whiter smile starts here with our fast, professional & effective teeth whitening services!

Dental Veneers

Our Custom Veneers will give you straighter, whiter teeth for a great smile, quickly & affordably!

Crowns & Bridges

Our Dental Crowns & Bridges will help restore your amazing smile and preserve your overall quality of life.

Dental Braces

Invisalign™ clear aligners are a great alternative to traditional braces and work in a fraction of the time.

Family Dentistry

We've been providing quality, dependable and local family dentistry in our Oshawa clinic since 1958.

Dentistry For Kids

Say goodbye to scary needles! We make going to the dentist fun for kids with laughing gas, free WiFi & more.

Request An Appointment

Please fill out the form below and we will contact you as soon as possible.
Riordan Dental Care Oshawa Ontario

Driving Directions:

Located in Oshawa, Ontario, we are on the east side of Simcoe Street North, just south of Beatrice Street East and north of Sunset Drive.

If you are driving south on Simcoe, continue past Beatrice Street and Liz’s No Frills (you’ll see it on your right side). We are just past that plaza, on the left (east) side.

If you are driving north on Simcoe Street, go past the Long & McQuade Musical Instruments store (on your left) and the Petro Canada gas station (right side).

The next street on your left will be Sunset Drive (where the Shell gas station is) and we are just past that intersection, on the right (east) side.


Free parking is available on the south (right) side of the building.

Public Transit:

You can take the Simcoe Street Northbound or Southbound bus.

Both directions have stops at Sunset Drive, just south of the clinic.

The Simcoe Southbound Bus Stop ID is: 715

The Simcoe Northbound Bus Stop ID is: 686

Please visit the Durham Region Transit website’s schedule page for routes, fares and times.


The clinic is fully accessible.


You can call the clinic during regular business hours or leave a message if we aren’t able to take your call.

Our Service Areas:

Oshawa Neighbourhoods: