Teeth Whitening

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Everybody loves a bright white smile, and there are a variety of products and procedures available to help you improve the look of yours.

Many people are satisfied with the sparkle they get from brushing twice daily with a fluoride-containing toothpaste, cleaning between their teeth once a day and the regular cleanings at your dentist’s office. If you decide you would like to go beyond this to make your smile look brighter, you should investigate all of your options.

You can take several approaches to whiten your smile:

  • In-office bleaching;
  • At-home bleaching;
  • Whitening toothpastes

See below for more information

What should you ask your dentist?

You may want to start by speaking with your dentist. We can tell you whether whitening procedures would be effective for you. Whiteners may not correct all types of discoloration. For example, yellowish hued teeth will probably bleach well, brownish-coloured teeth may bleach less well, and grayish-hued teeth may not bleach well at all. Likewise, bleaching may not enhance your smile if you have had bonding or tooth-coloured fillings placed in your front teeth. The whitener will not affect the colour of these materials, and they will stand out in your newly whitened smile. In these cases, you may want to investigate other options, like porcelain veneers or dental bonding.

What is in-office bleaching?

If you are a candidate for bleaching, we may suggest a procedure that can be done in his or her office. This procedure is called chair side or power bleaching and may require more than one office visit. Each visit may take from 30 minutes to one hour.

During chair side bleaching, the dentist will apply either a protective gel to your gums or a rubber shield to protect the oral soft tissues. A bleaching agent is then applied to the teeth, and a special light may be used to enhance the action of the agent.

A number of in-office bleaching agents have the ADA [American Dental association] Seal of Acceptance, your assurance that they have met ADA standards of safety and effectiveness.

Lasers have been used during tooth whitening procedures to enhance the action of the whitening agent. No whitening products using lasers currently are on the ADA list of Accepted products.

What are at-home procedures

After making moulds of your teeth, plaster models are poured. Customised vacuum trays are then fabricated and shaped to fit your teeth snugly. The bleaching solution is then placed inside the trays which are then fitted to the teeth.

Bleaching solutions. These products contain peroxide(s), which actually bleach the tooth enamel. These products typically rely on percent carbamide peroxide as the bleaching agent. Carbamide peroxide comes in several different concentrations (10%, 16%, 22%).

Peroxide-containing whiteners typically come in a gel and are placed in the fabricated trays. Usage regimens vary. Some products are used for about twice a day for 2 weeks, and others are intended for overnight use for 1-2 weeks.

You also may want to speak with your dentist should any side effects become bothersome. For example, teeth can become sensitive during the period when you are using the bleaching solution. In many cases, this sensitivity is temporary and should lessen once the treatment is finished. Some people also experience soft tissue irritation—either from a tray that doesn’t fit properly or from solution that may come in contact with the tissues. If you have concerns about such side effects, you should discuss them with your dentist.

Toothpastes. All toothpastes help remove surface stain through the action of mild abrasives. “Whitening” toothpastes in the ADA Seal of Acceptance program have special chemical or polishing agents that provide additional stain removal effectiveness. Unlike bleaches, these ADA Accepted products do not alter the intrinsic colour of teeth.