In-Chair vs Take-Home Teeth Whitening

Professional teeth whitening can lighten natural tooth colour, but it is important to have your teeth and gums checked first. Whitening isn’t suitable for everyone, and it doesn’t change the colour of fillings, crowns or veneers.

In-chair whitening

In-chair whitening is done at the clinic in a single appointment. Your gums are protected and a professional-strength gel is applied to the teeth.

Take-home whitening

Take-home whitening uses custom-made trays and a lower-strength gel worn for a set time each day over one to two weeks. It allows a more gradual change, and the trays can be used for top-ups later.

Sensitivity

Temporary sensitivity and gum irritation are common with both methods and usually settle within a few days. Let us know if your teeth are already sensitive.

Making results last

Limit coffee, tea, red wine and other strongly coloured food and drinks
Don’t smoke
Keep up regular check-ups and cleans

Results vary from person to person and fade over time. See our teeth whitening page to learn more.

Is whitening right for you?

Whitening works on natural tooth enamel. It does not change the colour of fillings, crowns, veneers or dentures, so if you have visible restorations at the front of your mouth they may not match after treatment. Whitening is usually not recommended during pregnancy or breastfeeding, and any decay, cracked teeth or gum problems should be treated first. A check-up before whitening helps make sure the treatment is suitable.

Why professional whitening is different

Professional products are supplied and supervised by a dental practitioner, who can check your teeth and gums first, protect the gums during in-chair treatment and fit custom trays for home use. Over-the-counter products in Australia are limited to lower concentrations, and poorly fitting trays can let gel contact the gums.

What results to expect

The amount of lightening varies between people and depends on the starting shade and the cause of the staining. Yellowish discolouration often responds better than grey or brown staining. Your dentist can discuss realistic expectations and alternatives, such as veneers or bonding, if whitening is unlikely to give the result you want.

Frequently asked questions

Does whitening damage enamel?

When used as directed under dental supervision, whitening is generally considered safe for enamel. Temporary sensitivity is the most common side effect.

How long does whitening last?

Results fade gradually. Coffee, tea, red wine and smoking can shorten them, and occasional top-ups with take-home trays may be suggested.

Can I whiten crowns or veneers?

No. Whitening gel only affects natural teeth. Existing restorations may need to be replaced to match a new shade.

In-chair or take-home teeth whitening: which is right for you?