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Specialist · Gums and implantsYonge-St.ClairPart of 123Dentist

Johnstone Periodontics

Patients often talk about putting nervous patients at ease and little or no pain.

★ 4.6 · 62 Google reviews · Read reviews
21 St Clair Ave E #300, Toronto, ON M4T 1L9

Details checked 13 September 2026. No clinic pays to be listed.

Specialist clinic

Johnstone Periodontics is a periodontist, a gum and implant specialist

Their focus is gum disease and implants. They also list check-ups and cleanings and sedation or care for anxious patients on their website.

Some specialists only see patients referred by a dentist, so ask when you call.

Can help with

Links go to the clinic’s own page about each one.

Good to know before you call

  • Closes before 6 p.m. and isn’t open weekends

What patients say most

  • Nervous patients felt at ease · 7 reviews
  • Little or no pain · 5 reviews
  • Friendly, helpful staff · 12 reviews
More from reviews ↓

What do you need?

Pick one to see what they offer, what patients say and what to ask.

Implants

Questions to ask
  • Is the consultation free, and does the quote include the implant, the abutment and the crown?
  • Who places the implant here?

Cost and paying

Their website doesn’t list prices or ways to pay.

Before treatment, ask
  • What’s the total, including the exam and X-rays?
  • How much will my insurance or the dental care plan cover?
  • Does anything cost more than the provincial fee guide?

From their website. See what people across Canada paid

Who you’ll see

The team listed on their website.

Dr. Andrea Johnstone
Specialists
Periodontist
Read bio

Periodontist Dr. Andrea Johnstone is a board certified periodontist who provides comprehensive periodontal care to patients including implant surgical procedures. Dr. Johnstone has a special interest in soft tissue grafting for teeth and implants and regenerative surgery. Dr. Johnstone completed her undergraduate degree in Biomedical Science from the University of Guelph. She then received her doctor of dental surgery degree from the University of Western Ontario . Dr Johnstone then completed a residency program at Mount Sinai Hospital in Toronto. Dr. Johnstone then received her Masters of Science (Periodontology) at the University of Toronto . Dr. Johnstone is a fellow of the Royal College of Dentists of Canada . Dr Johnstone is a staff Clinician at the Centre for Advanced Dental Research at Mount Sinai Hospital in Toronto and is the staff periodontist at Holland bloorview kids…

Dr. Matthew Choi
Periodontist
Periodontist
Read bio

Periodontist Dr Matthew Choi is a board certified specialist in periodontics. Born and raised in Toronto, He earned his Bachelors Degree from the University of Waterloo, followed up with his Doctor of Dental Surgery at the University of Toronto, graduating in 2021. He pursued further clinical training by completing a general practice residency at Columbia University Irving Medical Center, in New York. During his time in New York, he trained under the world’s leading dentists and surgeons, with a special focus on the management of medically complex patients, and advanced dentoalveolar surgery. Dr Choi returned to Toronto in 2022 to complete his training in periodontics at the University of Toronto. His clinical research focused on the development of novel, less invasive methods of periodontal disease diagnosis. He aims to provide comprehensive and complex periodontal care for all…

Dr. Alexandra Hunter
Periodontist
Periodontist
Read bio

Periodontist Dr. Alexandra Hunter is a board-certified periodontist and fellow of the Royal College of Dental Surgeons Canada, who is trained in periodontal plastic surgery and oral reconstruction. After completing her undergraduate degree at University of Ottawa, she went on to complete her Dental Degree in Ireland. Her explorative nature then led her to Vancouver to complete a Hospital based residency program. Dr. Hunter then worked as a general dentist for 2 years in Vancouver before returning to Toronto to finally finish her Academic endeavours at UofT where she completed her 3 year specialty training in Periodontology and a Masters in Science. Dr. Hunter continues to be involved with the University of Toronto dental students as well as works with patients at Mount Sinai at the Centre for Advanced Dental Research in tissue regeneration. As you may guess, aside from dentistry, Dr.…

Dr. Maayan Inger
Dentist
PeriodontistHebrewSpanish
Read bio

Periodontist Dr. Maayan Inger is a board certified periodontist who provides the full scope of surgical periodontal and dental implant therapy with special interest in esthetic and reconstructive periodontal procedures. Dr. Inger completed with honors her Doctor of Dental Surgery (DDS) degree at the Pontficia Universidad Javeriana in Bogota, Colombia, and after moving to Toronto, she completed her specialty training and Master’s of Science in Periodontology (MSc.perio) at the University of Toronto in 2014. Dr. Inger is a fellow of the Royal College of Dentists of Canada and a Diplomate member of the International Congress of Oral Implantologists. In addition, she is a member of the Ontario Society of Periodontics, the American Academy of Periodontology, and the Ontario Dental Association. In her spare time Dr. Inger enjoys exercising, traveling and spending time with her husband and…

What patients say

4.6
62 Google reviews
This past year18
Latest reviewJuly 2026
How the visit felt
7reviews
Nervous patients felt at ease

2 this past year

5reviews
Little or no pain
Kids, staff and the dental care plan
12reviews
Friendly, helpful staff
Treatments patients mention
3reviews
Implants
3reviews
Extractions or wisdom teeth

Counted from their Google reviews. Something shows here once at least 3 patients mention it. Bigger clinics get more reviews, so compare with care. Read the reviews on Google ↗

Equipment, comfort & access

Technology
3D cone-beam CT
Nitrous oxide
Oral sedation
IV sedation
Comfort
Sedation for nervous patients
Access
Wheelchair-accessible entrance
Parking info on their website

Need another dentist?

Other clinics nearby that also offer implants.

Deer Park Dental
Yonge-St.Clair · 0.1 km · Check-ups and cleanings and Children
Dr. Lidia Opris Family Dentistry
Yonge-St.Clair · 0.2 km · Check-ups and cleanings and Emergencies
Dentistry Spa - Dr. Navid Sarooshi & Dr. Lidia Opris
Yonge-St.Clair · 0.2 km · Check-ups and cleanings and Emergencies

Ready to call?

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Call Johnstone Periodontics

(647) 348-4867
EveningsCloses before 6 p.m.
SaturdayClosed
Dental care planNot mentioned
Dentists4
Group123Dentist

From their website and Google. Call to confirm.

Hours

Monday8 a.m.–3 p.m.
Tuesday7:30 a.m.–4 p.m.
Wednesday7:30 a.m.–4 p.m.
Thursday7:30 a.m.–4 p.m.
Friday7:30 a.m.–3 p.m.
SaturdayClosed
SundayClosed

From Google. Holiday hours may differ.

Getting there

Address
21 St Clair Ave E #300, Toronto, ON M4T 1L9
Neighbourhood
Parking
See their website
Get directions
About this page
Google profileManaged by the clinic
Websitejohnstoneperio.com
Reviews read56
Last checked13 September 2026
How it’s madeBuilt by software from the sources above
CallDirectionsWebsite