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Best Teeth Whitening Dentists in Thornhill, ON (2026)

5 clinics offering teeth whitening, rankedUpdated 0 paid placementsHow we rank →

The short answer

  1. 1

    Best overall for teeth whitening: Larry Lerner Dental, ranked #1 of 5 by service score; ranked on access and profile data; Google ratings not yet collected.

Rankings can't be bought. Booking through us earns you a $60 gift card and doesn’t affect order. How we rank

5 Thornhill clinics list teeth whitening and are ranked here by service score. 3 open Saturdays and 3 open after 6pm. Google ratings are on file for 4 of them.

Top 5 whitening dentists in Thornhill at a glance

Top 5 whitening dentists in Thornhill at a glance
RankClinicService scoreRating (reviews)
1Larry Lerner Dental73—
2Dentistry on Thornhill Woods714.9★ (214)
3Disera Dental654.9★ (285)
4Dr. Katbab Dentistry644.8★ (254)
5Paul Melnyk DDS635.0★ (57)

The 5 best whitening dentists in Thornhill, ranked

Ordered by service score: the DR Score plus bonuses for a specialist on staff, reviews that mention the service and same-day care where it applies.

  1. Ranked #1 for whitening in Thornhill

    #1 Larry Lerner Dental

    1118 Centre St #11, Thornhill, ON L4J 7R9, Canada

    73/10015% of factors measured

    Ranked #1 for teeth whitening in Thornhill on access and profile data; Google ratings are not yet collected.

    Based on services and profile completeness; Google ratings not yet collected.

    General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more

    Book appointment at Larry Lerner DentalFull profile(905) 886-2355
    In their words

    Larry Lerner Dental is one of the most trusted dentists in Thornhill and the go-to option for those seeking exceptional oral care with a compassionate touch. Our dental team is dedicated to providing a comprehensive range of dental services in a welcoming environment. We are conveniently situated on Centre Street in Concord Centre, next to Remax, our practice is easily accessible to residents of Thornhill, Beverly Glen, and North York. We offer wheelchair-friendly facilities…

    From Larry Lerner Dental's own description. Not part of the ranking.

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Thornhill, ON

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What is teeth whitening?

Teeth whitening uses peroxide-based gels to lighten stains on natural tooth enamel. It can be done in the clinic in one visit or at home with custom trays from your dentist. It does not change the colour of crowns, fillings or veneers.

Teeth whitening: specialist or general dentist?

General and cosmetic dentists provide professional whitening. A dental exam first helps rule out cavities or gum problems that could make whitening uncomfortable.

How much does teeth whitening cost in Thornhill?

Typical ranges in CAD for Thornhill, ON. Your price depends on the tooth, the case and the clinic.

How much does teeth whitening cost in Thornhill?
TypeTypical range (CAD)BasisAs of
In-office whiteningCA$410–CA$1,350DentistsRanked estimate from typical fees, adjusted for Ontario—
Custom take-home traysCA$270–CA$810DentistsRanked estimate from typical fees, adjusted for Ontario—

Estimates, not quotes. Ask the clinic for a written estimate. Full teeth whitening cost guide for Thornhill

What to expect from teeth whitening

Typical ranges for most patients. Your dentist's plan may differ.

Teeth whitening: visits, chair time and recovery
FactTypically
Typical visits1 visit in-office; or 1–2 visits for custom take-home trays
Chair timeAbout 60–90 minutes in-office
RecoveryNone; temporary tooth sensitivity is common for a day or two
When to see a specialistRarely needed; ask your dentist about deep stains from medication or injury

How we ranked Thornhill whitening dentists

We scored 5 Thornhill clinics offering teeth whitening 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.

Read the full method: formula, sources and exclusions

DR Score factors and weights
FactorWeightComputed fromIn Thornhill data
Reputation45%Bayesian-adjusted Google star ratingMeasured
Review volume15%log10(review count) against the city maximumMeasured
Recency10%Share of reviews in the last 12 monthsMeasured
Access15%Evenings, Saturday, Sunday, same-day/emergency, accepting new patientsMeasured
Services10%Services offered out of 17Measured
Profile completeness5%Named dentists, years open, languages, insurance, photosMeasured

Teeth whitening in Thornhill: frequently asked questions

Who is the best teeth whitening dentist in Thornhill?

Larry Lerner Dental ranks #1 of 5 Thornhill clinics offering teeth whitening by DentistsRanked service score. Dentistry on Thornhill Woods ranks #2 (4.9★ from 214 Google reviews). The score weighs reputation, access, services and profile data.

How much does teeth whitening cost in Thornhill, ON?

Teeth whitening in Thornhill typically costs CA$270–CA$810 CAD. By type: in-office whitening CA$410–CA$1,350; custom take-home trays CA$270–CA$810. These are estimates, not quotes. Basis: DentistsRanked estimate from typical fees, adjusted for Ontario. Ask the clinic for a written estimate.

Is teeth whitening covered by CDCP or insurance in Ontario?

The Canadian Dental Care Plan (CDCP) does not cover teeth whitening, and most private plans exclude it as cosmetic.

Does teeth whitening hurt?

Teeth whitening is not usually painful, but temporary sensitivity is common during treatment and for a day or two after. Some people feel brief sharp twinges. Your dentist can lower the gel strength or recommend a desensitising toothpaste.

Which Thornhill teeth whitening dentists are open on Saturday?

3 of 5 Thornhill clinics offering teeth whitening list Saturday hours, including Dentistry on Thornhill Woods, Dr. Katbab Dentistry and Paul Melnyk DDS. Hours come from each clinic's listing; check with the clinic before you go, since holiday and summer hours can change.

How many dentists offer teeth whitening in Thornhill?

5 Thornhill clinics list teeth whitening in our data. 3 are open Saturdays. Google ratings are on file for 4 of them. Counts update when clinics change their profiles.

Update log for Thornhill

  1. : DR Scores recalculated for 102 clinics.

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