Everything You Need to Know About In-Chair Teeth Whitening Treatments

Written by Olivia Dora | Jul 30, 2025 6:53:09 AM

A bright, white smile is often associated with confidence, good health, and youth. For many Australians, achieving that perfect smile can sometimes be a challenge due to staining from coffee, tea, red wine, smoking, or simply the natural ageing process. One of the most popular and effective ways to rejuvenate your smile is through in-chair teeth whitening treatments. This article explores everything you need to know about this professional dental procedure, including its benefits, costs, process, and aftercare.

What is In-Chair Teeth Whitening?

In-chair teeth whitening is a cosmetic dental procedure performed by a qualified dental professional. Unlike over-the-counter whitening products, this treatment uses stronger bleaching agents applied directly to your teeth under professional supervision. The term "in-chair" refers to the fact that the procedure is done entirely in the dental chair, usually within one to two hours.

This method offers a safer, quicker, and more effective alternative to home whitening kits. It allows for controlled application of bleaching gels and sometimes involves the use of light or laser to accelerate the whitening process.

How Does In-Chair Teeth Whitening Work?

During the treatment, the dentist or dental hygienist first cleans your teeth to remove plaque and surface stains. Your gums and soft tissues are protected using a special barrier to avoid irritation from the bleaching gel.

The whitening gel, typically containing hydrogen peroxide or carbamide peroxide in higher concentrations than at-home kits, is applied to the teeth. Some dental practices use a light or laser source to activate the gel, speeding up the chemical reaction that breaks down stains on the tooth enamel.

Multiple applications of the gel may be done during the session, and the results are immediately visible once the treatment is complete.

Benefits of In-Chair Teeth Whitening

  • Fast Results: Unlike home whitening kits, which can take weeks to show results, in-chair treatments provide noticeable whitening after just one session.
  • Professional Supervision: The treatment is performed by dental professionals, reducing the risk of gum irritation and tooth sensitivity.
  • Customised Treatment: Dentists tailor the strength and duration of the whitening process based on your individual needs.
  • Long-lasting Effects: Professional teeth whitening tends to have longer-lasting effects compared to over-the-counter options.
  • Safe and Controlled: The concentration of bleaching agents is higher but safely applied under professional monitoring.

Professional Teeth Whitening Cost in Australia

One of the key concerns many patients have is the professional teeth whitening cost. In Australia, the price for an in-chair teeth whitening session typically ranges from AUD 500 to AUD 1,000 depending on factors such as:

  • The dental clinic’s location
  • The dentist’s experience and reputation
  • The type of whitening system used
  • Whether additional treatments like cleaning or examination are included

While this might seem expensive compared to home whitening kits, the professional approach delivers superior, faster, and safer results. It is also important to consider the longevity of the whitening effect and potential touch-up sessions when budgeting for treatment.

Who is a Suitable Candidate?

Most adults seeking to brighten their smile are suitable for in-chair teeth whitening. However, it’s important to have a consultation with a dentist beforehand to assess your oral health. The treatment is not recommended for:

  • Children under 16 years old
  • Pregnant or breastfeeding women (due to lack of research on safety)
  • People with dental conditions such as cavities, gum disease, or worn enamel
  • Those with extreme tooth sensitivity or allergies to whitening agents

Your dentist will also discuss your expectations and explain realistic outcomes, especially if your teeth have intrinsic stains caused by medications or trauma.

What to Expect During the Treatment?

Here’s a step-by-step overview of a typical in-chair whitening session:

  1. Examination and Cleaning: The dentist checks your oral health and cleans your teeth.
  2. Gum Protection: A protective barrier is applied to your gums.
  3. Application of Whitening Gel: The bleaching agent is applied to your teeth.
  4. Activation: A light or laser may be used to activate the gel.
  5. Multiple Applications: The gel is reapplied for several cycles, usually 15 to 20 minutes each.
  6. Rinse and Review: The gel is removed, and the dentist evaluates the shade change.

The entire process takes about 60 to 90 minutes.

Aftercare and Maintaining Your Results

Following in-chair whitening, it’s crucial to take care of your teeth to prolong the brightened look. Here are some aftercare tips:

  • Avoid staining foods and drinks (coffee, tea, red wine, berries) for at least 48 hours.
  • Quit smoking or reduce tobacco use.
  • Maintain excellent oral hygiene, including brushing twice daily and flossing.
  • Use whitening toothpaste or touch-up kits recommended by your dentist.
  • Schedule regular dental check-ups and cleanings.

Are There Any Side Effects?

Some people may experience temporary tooth sensitivity or gum irritation immediately after treatment. This usually subsides within a few days. Dentists often provide recommendations such as desensitising toothpaste to ease discomfort.

Professional Teeth Whitening vs. Over-the-Counter Products

While home whitening kits are widely available and cheaper, they tend to have lower concentrations of bleaching agents and may take longer to show results. Additionally, without professional guidance, there is a higher risk of uneven whitening or gum damage.

Professional teeth whitening, on the other hand, is safer, more effective, and tailored to your dental needs, making it a worthy investment for many people.

Summary

In-chair teeth whitening is an excellent option for those looking to brighten their smile quickly and safely. With professional supervision, customised treatment, and long-lasting results, it outperforms many at-home alternatives. Though the professional teeth whitening cost might be higher, the benefits often justify the investment. If you’re considering teeth whitening, consult your dentist to discuss your goals, suitability, and options. With proper care, you can enjoy a radiant smile that boosts your confidence and leaves a positive impression for years to come.