Teeth Whitening

Staining and discolouration are common concerns. Professional whitening, done under dental supervision, uses higher-concentration agents than over-the-counter products, with a more controlled and consistent approach.

Tooth discolouration can have several causes, and the underlying cause affects how well whitening will work. Common contributors include:

• Foods and drinks. Coffee, tea, and red wine are among the most common sources of surface staining over time.
• Tobacco use. Both smoking and chewing tobacco can cause significant staining.
• Aging. Enamel naturally thins over time, letting more of the darker dentine underneath show through.
• Certain medications. Some antibiotics (such as tetracycline) and other medications can cause intrinsic discolouration that may be harder to address with whitening alone.

Over-the-counter whitening products, including strips, toothpastes, and trays, are widely available and vary a lot in concentration and effectiveness. They can be a starting point for mild staining, but they are generally lower in concentration than professional agents.

Professional whitening uses higher-concentration peroxide gels applied under dental supervision. This allows a more controlled application, proper protection for the gums, and treatment tailored to your situation. Before any whitening, a dental exam confirms that your teeth and gums are healthy enough to proceed.

In-office whitening

Completed in a single appointment at the office. The team applies a higher-concentration gel with protection for the gums. Results are visible after one session, though the degree of change varies from person to person.

Take-home trays

Custom-fitted trays are made from impressions of your teeth for even coverage. You apply professional-grade gel at home over a period of days to weeks, following the schedule you are given. This approach allows gradual whitening in a familiar setting.

Some patients have temporary tooth sensitivity during or after whitening. This is a common and expected response, and it usually settles within a day or two once treatment is complete. If sensitivity is a concern for you, mention it before treatment begins. There are steps the team can take to help manage it.

Results vary depending on your starting shade, the cause of the discolouration, and the type of whitening used. The dentist will give you a realistic picture of what to expect at your consultation.

Whitening results are not permanent. Teeth can re-stain over time, especially with ongoing exposure to staining foods and drinks or tobacco. Cutting back on coffee, tea, and red wine, or rinsing with water after having them, can help. Regular professional cleanings also help maintain the appearance of your teeth.

Whitening agents work on natural tooth enamel. They do not change the colour of dental restorations such as crowns, veneers, or bonding, so restorations in visible areas may look mismatched after whitening. Some causes of discolouration, such as intrinsic staining from certain medications, may also not respond well to conventional whitening. In these cases, other cosmetic options may be worth discussing.