Brighter, Whiter Smile

Teeth whitening in North York

Professional in-office and take-home whitening at our Yonge & Sheppard studio. Safer, longer-lasting, and more predictable than store-bought kits.

Custom-fitted trays · In-office or take-home · Free underground parking

Professional teeth whitening options at seesmile

We offer two professional approaches. Most patients see noticeably whiter teeth after either route, and many combine the two for maximum effect.

In-office whitening

A single 60–90 minute visit at our studio. We apply a professional-strength whitening gel under controlled conditions, with immediate results you can see when you leave.

Custom take-home whitening

Custom-fitted trays made from a digital impression of your teeth, with professional-grade gel. You wear the trays for a set amount of time over one to two weeks at home for gradual results.

Combined approach

For patients with significant staining, we sometimes combine an in-office session with follow-up take-home maintenance for the deepest, longest-lasting results.

Why professional whitening over over-the-counter kits

Store-bought strips and toothpastes can produce some improvement, but professional whitening at a dental office offers meaningful advantages — especially when results matter.

Higher concentration, supervised use

Professional whitening uses higher-strength gel than retail products, applied under dental supervision. This produces faster, more dramatic results without overdoing it.

Custom-fitted trays

Take-home trays are made from a 3D scan of your teeth so the gel sits exactly where it should — not on your gums, where it can cause irritation.

Examined first

Before whitening, we make sure your teeth and gums are healthy. Whitening over cavities, cracked teeth, or untreated gum disease can cause significant discomfort and complications.

Predictable results

We can give you a realistic expectation of how white your teeth will get and how long it will take, based on your starting shade and the cause of staining.

Sensitivity management

If you have sensitive teeth, we adjust gel strength, exposure time, and use desensitizing products so the process stays comfortable.

Long-lasting

Professional results typically last six months to two years — sometimes longer with touch-ups — versus a few weeks for many retail kits.

What causes teeth to stain

Understanding what is causing the discolouration helps us recommend the right approach. There are two main types of staining.

Surface (extrinsic) staining

Caused by coffee, tea, red wine, dark berries, tobacco, and certain spices. These stains live on the outer enamel and respond very well to professional whitening.

Deeper (intrinsic) discolouration

Caused by aging, certain medications (such as tetracycline taken in childhood), excessive fluoride exposure, or trauma to a tooth. These stains are inside the tooth and are harder to lift with whitening alone.

When whitening will not work alone

Old fillings, crowns, and veneers do not respond to whitening. If they show in your smile, you may want to whiten your natural teeth first, then replace those restorations to match.

During your consultation, we assess what is causing your staining and recommend the best path forward — sometimes that is whitening, sometimes it is bonding or veneers, and sometimes a combination.

The professional whitening process

01

Consultation and assessment

We examine your teeth and gums, identify the cause of staining, document your starting shade, and recommend which approach — in-office, take-home, or combined — will work best for you.

02

Preparation

A gentle cleaning before whitening removes surface plaque and helps the gel work more evenly. For take-home, we take a 3D scan and craft custom-fitted trays.

03

Whitening

For in-office, we apply protective barriers to the gums, then the professional gel, in controlled sessions over 60–90 minutes. For take-home, you wear your trays for the prescribed time over one to two weeks at home.

04

Aftercare and maintenance

We provide detailed aftercare instructions, including foods to avoid for the first 48 hours, and discuss touch-up frequency so your results last.

Why North York patients choose seesmile for whitening

Honest assessment first

We tell you what whitening can realistically achieve for your case, including when other options (bonding, veneers) would be a better fit.

Custom-fitted take-home trays

Trays are made from a 3D digital scan of your teeth — a comfortable, accurate fit that keeps the gel in the right place.

Sensitivity-friendly approach

If you have sensitive teeth, we adjust gel strength and exposure time, and use desensitizing products before and after to keep the process comfortable.

Calm, modern studio

Our clinic is designed to feel calm and welcoming. In-office whitening sessions are a relaxed appointment, not a clinical procedure.

Long-term care plan

We help you maintain results with simple at-home touch-ups, sensible diet adjustments, and timing recommendations.

Yonge & Sheppard convenience

Direct subway access and free underground parking, with evening and Saturday hours.

Cost and insurance

Whitening cost depends on which approach you choose and whether you combine in-office with take-home. We will give you a written quote during your consultation, after we have assessed your starting shade and the cause of your staining.

Clear quote up front

You receive a written quote before any whitening begins. No surprise charges, no upsell pressure.

Insurance check

Cosmetic whitening is generally not covered by dental insurance, but we will still verify your plan and let you know what to expect.

Payment options

For patients combining whitening with other cosmetic work, we offer 0% interest financing for up to 24 months on qualifying treatment plans.

Common questions about teeth whitening

How much does professional teeth whitening cost in North York?

Cost depends on which approach you choose — in-office, take-home, or both. We give you a written quote during your consultation after looking at your starting shade and the cause of staining. We are happy to share rough ranges over the phone if helpful.

Does professional whitening damage your teeth?

When performed under dental supervision with appropriate gel concentrations and gum protection, professional whitening is safe and well-studied. The most common side effect is short-term tooth sensitivity, which usually resolves within a day or two.

How long does it take to see results?

In-office whitening produces visible results in a single 60–90 minute session. Custom take-home whitening typically shows full results in one to two weeks of consistent use.

How long do whitening results last?

Results typically last six months to two years, depending on your diet (coffee, red wine, dark berries accelerate restaining), tobacco use, and oral hygiene. Periodic touch-ups with take-home gel can keep results going much longer.

Will whitening work on crowns, veneers, or fillings?

No — whitening only works on natural tooth enamel. If you have restorations in your smile zone, you may want to whiten your natural teeth first, then have those restorations replaced to match the new shade.

Is teeth whitening safe for sensitive teeth?

Yes, in most cases. We adjust the gel concentration and exposure time, and use desensitizing products before and after, so even patients with sensitivity usually tolerate it well.

In-office or take-home — which is better?

In-office is fastest with immediate results. Take-home is more gradual but very effective and offers easier touch-ups later. Many of our patients combine the two for the best of both. We will recommend the right path during your consultation.

Does insurance cover whitening?

Cosmetic whitening is generally not covered by dental insurance. We will still verify your specific plan and let you know what — if anything — might be partially covered.

Ready for a brighter smile?

Book a whitening consultation at our North York studio. We will assess your starting shade, identify what is causing the staining, and recommend the right approach for the result you are after.

Custom-fitted trays · In-office or take-home · Yonge & Sheppard subway