What to expect
What is professional teeth whitening?
- In-office whitening. A stronger gel is applied in the clinic. The process is done by a dental professional and gives faster results.
- Take-home whitening kits. A custom tray and professional gel are provided for use at home over several days or weeks.
Who is a good candidate?
Most adults who have healthy gums and no active tooth decay can consider whitening. We do not recommend whitening for:
- Children and teens whose permanent teeth are still developing
- People with untreated gum disease or large areas of decay that need treatment first
- Pregnant or breastfeeding people, because safety data is limited
If you have dental crowns in London , dental veneers in London , or large fillings, know that whitening will not change the colour of those materials. We will review your mouth and explain what to expect before starting treatment.
In-office whitening: quick overview
In-office whitening uses a stronger whitening gel that a dentist applies for a short period. A light may be used in some systems to accelerate results. Sessions typically last between 45 and 90 minutes. Many patients see a noticeable change after one visit.
Before whitening, we check your gums and clean your teeth if needed. A cleaning must be completed 6 to 9 months prior to in-office whitening. We protect your gums and apply the gel to your teeth only. After treatment, we give tips to reduce sensitivity and help the colour last longer.
Take-home whitening kits: what to expect
Take-home kits include custom trays made from impressions of your teeth and professional gel. You wear the tray for the time your dentist suggests. Treatment can take several nights or a few weeks depending on the strength of the gel and your goals.
Take-home whitening is a good fit if you prefer to whiten at your own pace or need a gentler approach because of sensitivity. We provide clear instructions and check the progress at a follow up visit.
Does whitening work ON crowns and veneers?
Whitening only affects natural tooth enamel. Crowns, veneers, and fillings do not whiten the same way. If you have restorations, we will discuss options. In some cases, the dentist may recommend replacing restorations through cosmetic dentistry in London to match the new shade after whitening
Cost of professional teeth whitening in London, ON
Costs vary by method and clinic. As a general guide:
- In-office whitening often ranges from about $250-$350 per session .
- Take-home professional kits are usually less expensive than in-office treatment.
Exact prices depend on the system used, the number of sessions needed, and any follow up care. At your consultation we will provide a clear cost estimate and explain what is included.
Direct billing & CDCP. We bill most insurance providers directly and participate in the Canada Dental Care Plan. Ask us for a written estimate before treatment begins — no surprises.
Safety and sensitivity
Some people notice temporary tooth sensitivity after whitening. This usually fades within a few days. To reduce sensitivity we may recommend:
- Using a lower strength gel
- Shorter application times at first
- A desensitizing toothpaste before and after treatment
We always assess your oral health before starting whitening. If you have sensitivity or other concerns, we tailor the plan to suit you.
Aftercare: keep your smile bright
To keep your teeth bright after whitening, follow these tips:
- Avoid dark drinks for 48 hours after whitening, such as coffee, tea, red wine, and cola.
- Use a straw when possible for coloured drinks.
- Maintain good oral hygiene with regular brushing and flossing.
- Consider touch-up treatments every few months or as recommended by your dentist.
Regular dental cleanings also help maintain the results.
Meet Our Dentists
Fairmont Dental Centre is led by Dr. Edward Pham and Dr. Alain David , experienced general dentists serving London, Ontario.
They provide cosmetic care, including professional whitening, within the scope of general dentistry. Both dentists focus on clear explanations and safe treatment planning. If a case needs specialist care for any reason, we will discuss referral options and help arrange next steps.
Our team has served the community for over 35 years and works to make each visit comfortable and straightforward.
