Dentist showing a patient a whitening tray at a dental office

How At Home Kits Work

Store bought strips and gels use a mild bleaching agent. You apply them yourself over one to two weeks. They can lighten teeth a shade or two, especially for light surface staining from coffee, tea, or wine.

Dentist provided take home trays are a step up. Your dentist takes a mold of your teeth so the tray fits closely, and gives you a stronger gel than what you can buy over the counter.

How In Office Whitening Works

In office teeth whitening orangeville dentists offer uses a stronger gel. It is applied under direct supervision. Your gums are protected first. Then the gel goes on, often with a special light to help it work.

Most sessions take about an hour. Many patients see a visible difference the same day. That speed is the main advantage over at home options.

Comparing Results, Time, and Sensitivity

In office whitening tends to work faster. The gel is stronger and it is applied under supervision. At home kits take longer, usually one to two weeks of daily use. They also cost less upfront.

Both options can cause short term tooth sensitivity. It usually fades within a day or two. Your dentist can suggest a sensitivity toothpaste first if you are prone to it.

Which Option Fits Your Situation

If you want a fast result before an event, in office whitening gives you same day results. If you prefer to whiten gradually and manage your own schedule, a dentist provided take home tray gives you professional strength gel without needing an appointment for the whitening itself.

Either way, your dentist should check your teeth first, since untreated cavities or gum issues should be addressed before whitening.

Frequently Asked Questions

Does teeth whitening work on crowns or veneers?

No. Whitening only changes the shade of natural tooth enamel. Crowns, veneers, and fillings will not change colour, which can leave them looking different from your newly whitened teeth.

How long do results last?

This depends on your diet and habits. Coffee, wine, and tea will gradually cause staining to return, and many patients touch up with take home trays every so often.

Is one option safer than the other?

Both are considered safe when done correctly. In office whitening is done under direct supervision, while at home kits rely on you following the instructions closely. For general safety information, see the Canadian Dental Association’s overview of teeth whitening.

Not sure which option makes sense for your teeth and your schedule? Ask the O’Ville Dental team about both options at your next visit.

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