Teeth naturally vary in colour and can become darker or more stained over time.
Professional teeth whitening uses bleaching agents to lighten the colour of suitable natural teeth.
At Dental Seasons, we assess your teeth and gums before whitening so we can identify anything that may affect treatment, discuss the result you are hoping for and explain what whitening can realistically achieve.
Whitening changes the colour of natural teeth. It does not change the colour of fillings, crowns, veneers or other dental restorations.

Professional teeth whitening uses bleaching agents such as hydrogen peroxide or carbamide peroxide.
These agents penetrate the outer tooth structure and chemically break down coloured molecules within the tooth, making the natural tooth appear lighter.
The degree of colour change varies between people.
It depends on factors including:
Whitening cannot guarantee a particular shade or make every person’s teeth the same colour.
The aim is to lighten your own natural tooth colour safely and appropriately.
Coffee, tea, red wine and other strongly coloured foods and drinks can contribute to external staining over time.
Tobacco products can cause significant surface staining and discolouration.
Teeth can appear darker or more yellow as the enamel and underlying dentine change over time.
A tooth that has been injured can sometimes darken internally.
A single dark tooth requires assessment because conventional external whitening may not be the appropriate treatment.
Certain medications taken while teeth are developing and some developmental conditions can affect tooth colour.
A tooth that has undergone root canal treatment can sometimes become darker than the surrounding teeth.
This may require a different whitening approach.

A professional dental clean and teeth whitening are not the same treatment. A dental clean can remove plaque, calculus and some external surface staining.
This may make the teeth appear cleaner or brighter but does not chemically change their natural colour. Whitening uses a bleaching agent to lighten the natural tooth itself.
If most of the discolouration is surface staining, a professional clean may be worth completing before deciding whether whitening is needed.
Learn About Dental Check-Ups & CleansWhitening products are not appropriate for every mouth.
Before recommending treatment, we assess the teeth and gums for problems that could affect safety, comfort or the result.
These can include:
If another dental problem needs attention first, we will explain why before whitening begins.
Professional whitening is generally provided using one of two approaches.
In-chair whitening uses a higher-concentration professional whitening gel applied to the teeth while the gums and surrounding soft tissues are protected.
Treatment is completed in the dental clinic.
A noticeable colour change may occur after one appointment, although individual results vary.
Take-home whitening uses custom-fitted trays and whitening gel supplied with instructions from a dental professional.
The treatment is performed progressively at home over the recommended period.
Your dentist can discuss which professional whitening approach is available and appropriate for your individual situation.
No.
Whitening agents lighten natural tooth structure but do not change the colour of:
This is particularly important when restorations are visible in the front of the mouth.
If your natural teeth become significantly lighter, an existing restoration may no longer match them.
That does not automatically mean the restoration should be replaced.
If appearance is a concern, we can discuss whether monitoring, polishing, repair or eventual replacement is appropriate.
Where a visible restoration genuinely needs replacing, whitening is often considered first so the new restoration can be matched to the final tooth shade.
Yes.
Temporary tooth sensitivity is one of the most common side effects of whitening.
Some people experience very little sensitivity, while others notice sensitivity to cold air, drinks or foods during or shortly after treatment.
Gum irritation can also occur if whitening gel contacts the soft tissues.
The likelihood and severity depend on the individual teeth and the whitening product being used.
If you already have sensitive teeth, let us know before treatment.
We can assess the cause and discuss whether whitening is appropriate or whether the treatment approach should be modified.
Persistent or severe sensitivity should be reviewed.
Professional assessment is particularly important if you:
Whitening may need to be postponed or another cosmetic approach may be more appropriate.
Australian health guidance recommends avoiding teeth whitening during pregnancy and breastfeeding.
A single dark tooth should be assessed before trying to whiten it.
Possible causes include previous trauma, loss of vitality within the tooth or previous root canal treatment.
If the tooth has undergone root canal treatment, internal bleaching may sometimes be considered.
This involves placing whitening material inside the tooth rather than simply bleaching the outside surface.
Other restorative options may sometimes be discussed depending on the condition of the tooth.
The important first step is understanding why that tooth has changed colour.
There is no way to guarantee an exact final shade before treatment.
Natural teeth respond differently to whitening.
Some colour changes respond more readily than others.
Your starting shade, tooth structure and cause of discolouration all influence the result.
Professional whitening should therefore be approached as a way to lighten your natural tooth colour rather than create an artificial or predetermined shade.
We prefer realistic expectations over promising a particular number of shades or a specific result.
Teeth whitening is not permanent.
Natural colour changes and new staining can gradually occur over time.
How quickly this happens depends on factors such as:
Some patients choose occasional professionally recommended touch-up treatment.
Whitening should not simply be repeated frequently without considering tooth sensitivity and oral health.
Professional whitening products are designed to be used at specific concentrations and according to appropriate instructions.
The main recognised short-term effects are tooth sensitivity and irritation of the surrounding soft tissues.
Problems are more likely when whitening products are excessively strong, used incorrectly or repeatedly used without appropriate guidance.
This is one reason professional assessment and supervision can be valuable before using bleaching products.
Whitening toothpastes, strips, gels and kits are widely available.
Their ingredients and concentrations vary.
Some may help remove surface stains or produce a degree of whitening.
However, buying a whitening product does not identify why the teeth are discoloured or whether there is untreated decay, gum disease, cracks or sensitivity.
Products purchased online can also vary in quality and formulation.
Natural remedies promoted online, such as acidic fruits, charcoal or abrasive mixtures, are not a substitute for professional whitening and can potentially damage tooth surfaces if used repeatedly.
If you are considering whitening, we recommend having your teeth assessed first.
Teeth whitening can sometimes be the simplest cosmetic treatment to consider before more invasive options.
If the main concern is tooth colour and the teeth are otherwise healthy, bleaching may achieve the improvement you are looking for without removing natural tooth structure.
Whitening can also be considered before replacing visible fillings or planning other cosmetic restorative treatment so the final restorations can be matched appropriately.
More invasive treatment should not be recommended simply because a patient would like lighter teeth.
Dental Seasons is located at 119A Brighton Road, Sandgate QLD 4017.
We provide professional teeth whitening assessment and treatment for suitable adults from Sandgate and surrounding North Brisbane and bayside communities.
If you are unsure whether whitening is appropriate, we can assess your teeth and explain the realistic options before you decide whether to proceed.
Professional bleaching can lighten the colour of suitable natural teeth. The amount of colour change varies according to the individual teeth and the cause of discolouration.
No. Whitening agents do not change the colour of fillings, crowns, veneers or other dental restorations.
Temporary sensitivity can occur during or after treatment. Some people experience very little sensitivity while others notice more significant symptoms.
No. Teeth can gradually become darker or stained again over time. Diet, smoking and individual tooth characteristics all influence how long the result remains noticeable.
Whitening can improve the overall colour of suitable teeth. Some external staining may also be removable through professional dental cleaning before whitening is considered.
Possibly, but a single dark tooth should first be assessed to determine why it has changed colour. A root canal treated tooth may sometimes be suitable for internal whitening rather than conventional external bleaching.
No. Porcelain, ceramic and composite restorations do not respond to bleaching in the same way as natural teeth.
It can be useful when plaque, calculus or surface staining is present. Your dentist can advise whether cleaning should be completed first.
Professional guidance recommends postponing teeth whitening during pregnancy and breastfeeding.
Professional treatment provides the benefit of having your teeth and gums assessed first and allows an appropriately qualified dental practitioner to recommend a suitable whitening method and concentration.

If you would like your teeth to appear lighter, the first step is understanding what is causing the colour and whether your natural teeth are suitable for whitening. Book a whitening consultation at Dental Seasons and we can assess your teeth, explain the available options and help you understand what result is realistic for you.
Our approach to cosmetic dentistry begins with understanding your oral health and what you would like to change.
If whitening is appropriate, we will explain what it can achieve, its limitations and any factors that could affect the result before treatment begins.