67/100
Ranked #1 because of its Google rating and recent reviews: 4.9★ from 63 Google reviews, about 63 reviews in the last 12 months.
- 4.9from 63 Google reviews
- Hours
- Mon–Sat 9 AM–6 PM · Sun closed
Best Periodontists in Thornhill, ON (2026)
4 clinics ranked by DR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Top DR Score among periodontists: Dr7 Family Dentistry, 4.9★ from 63 Google reviews, open Saturdays until 6 PM.
- 2
Best for weekend appointments: Coulter's Mill Dental Office, 4.9★ from 515 Google reviews, open evenings until 8 PM and Saturdays until 1 PM.
- 4
Best for evenings: Rosedale Family Dental Centre, 4.6★ from 182 Google reviews, open evenings until 8 PM.
Rankings can't be bought. Booking through us earns you a $60 gift card and doesn’t affect order. How we rank
4 of Thornhill’s 102 clinics have a periodontist on staff, as of October 2026. 2 of them open Saturdays and 3 stay open after 6pm. They offer 1 of our 17 tracked services on average.
Top 4 periodontists in Thornhill at a glance
| Rank | Clinic | DR Score | Rating (reviews) | Evenings / weekends | Best for |
|---|---|---|---|---|---|
| 1 | Dr7 Family Dentistry | 67 | 4.9★ (63) | Sat | Top DR Score among periodontists |
| 2 | Coulter's Mill Dental Office | 65 | 4.9★ (515) | Evenings · Sat | Best for weekend appointments |
| 3 | Dr. Muyal & Associates - Thornhill Dentist | 63 | 4.9★ (49) | Evenings · Sun | — |
| 4 | Rosedale Family Dental Centre | 58 | 4.6★ (182) | Evenings | Best for evenings |
The 4 periodontists in Thornhill, ranked
Ordered by DR Score, a 0–100 score from 6 published factors. Scores refresh weekly.
#2 Coulter's Mill Dental Office
1450 Clark Ave W Unit 22A and 22B, Thornhill, ON L4J 7R5
65/100Ranked #2 because of its Google rating and review volume: 4.9★ from 515 Google reviews, the most Google reviews in Thornhill (515).
- 4.9from 515 Google reviews
- Hours
- Mon–Tue 9 AM–8 PM · Wed–Thu 9 AM–6 PM · Fri–Sat 9 AM–1 PM · Sun closed
#3 Dr. Muyal & Associates - Thornhill Dentist
7368 Yonge St Ste 209, Thornhill, ON L4J 8H9
63/100Ranked #3 because of its Google rating and review volume: 4.9★ from 49 Google reviews, 49 Google reviews.
- 4.9from 49 Google reviews
- Hours
- Mon–Thu 10 AM–7 PM · Fri 9 AM–4 PM · Sat closed · Sun 10 AM–4 PM
#4 Rosedale Family Dental Centre
531 Atkinson Avenue, Units 15 & 16, Thornhill, ON L4J 8L7
58/100Ranked #4 because of its Google rating and review volume: 4.6★ from 182 Google reviews, 182 Google reviews.
- 4.6from 182 Google reviews
- Hours
- Mon 8 AM–4 PM · Tue 1 PM–8 PM · Wed 12 PM–8 PM · Thu 8 AM–4 PM · Fri–Sun closed
Find the right dentist in Thornhill
Answer 2 quick questions and we'll help you find a dentist that fits your needs, location and availability.
Book through DentistsRanked and get a $60 Amazon gift card. Terms
Step 1 of 2
What service are you looking for?
- 100% free for patients
- No commitment
How we ranked Thornhill dentists
This list covers the 4 Thornhill clinics that have a periodontist on staff. We scored 4 Thornhill clinics on 6 factors: reputation 45%, review volume 15%, recency 10%, access 15%, services 10%, profile completeness 5%. Data from Google listings and clinic websites, refreshed October 21, 2026.
Paid placement never changes a rank or score. Featured clinics are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Thornhill data |
|---|---|---|---|
| Reputation | 45% | Bayesian-adjusted Google star rating | Measured |
| Review volume | 15% | log10(review count) against the city maximum | Measured |
| Recency | 10% | Share of reviews in the last 12 months | Measured |
| Access | 15% | Evenings, Saturday, Sunday, same-day/emergency, accepting new patients | Measured |
| Services | 10% | Services offered out of 17 | Measured |
| Profile completeness | 5% | Named dentists, years open, languages, insurance, photos | Measured |
Best Periodontists in Thornhill, ON: frequently asked questions
Who are the periodontists in Thornhill?
4 Thornhill clinics have a periodontist on staff in our data. By DR Score, the highest-ranked are Dr7 Family Dentistry, Coulter's Mill Dental Office and Dr. Muyal & Associates - Thornhill Dentist.
Which of these Thornhill clinics are open on Saturday?
2 of the 4 clinics on this page open on Saturdays. The highest-ranked are Dr7 Family Dentistry and Coulter's Mill Dental Office, and Dr7 Family Dentistry opens 9 AM–6 PM.
Which of these Thornhill clinics are open on Sunday?
1 of the 4 clinics on this page open on Sundays. The highest-ranked are Dr. Muyal & Associates - Thornhill Dentist, and Dr. Muyal & Associates - Thornhill Dentist opens 10 AM–4 PM.
Which Thornhill clinics on this page are open late?
3 of the 4 clinics on this page stay open after 6pm on at least one weekday. Coulter's Mill Dental Office has the latest weekday hours, until 8 PM on Mondays.
How are periodontists in Thornhill ranked?
Each clinic has one DR Score from 0 to 100, built from 6 published factors: reputation, review volume, recency, access, services and profile completeness. This page lists the 4 Thornhill clinics that have a periodontist on staff, in DR Score order. No clinic pays for its position.
Update log for Thornhill
- : DR Scores recalculated for 102 clinics.