Teeth whitening has surged in popularity in recent years, reflecting our desire for brighter smiles.
The global teeth whitening market was valued in 2021 at approximately USD 6.9 billion. At the anticipated compound annual growth rate of 5.0% from 2022 to 2030, we can expect global market value to reach USD 10.6 billion by 2030. [Source]
Accounting for 32% of in-office treatments, teeth whitening is the most requested dental procedure in the United States. [Source]
In Australia, the teeth whitening systems market was valued at approximately AUD 24.28 million in 2023. [Source] This figure represents professional treatments, such as you’ll find with our Gold Coast teeth whitening services.
The overall teeth whitening market in Australia, which includes both at-home and professional treatments, was valued at approximately AUD 112 million in 2023 and is projected to reach almost AUD 165 million by 2030. [Source]
With interest in teeth whitening at this level, understanding the science behind it becomes essential. Following are answers to satisfy most curious questions.
What causes teeth to become discoloured?
Various factors can cause teeth to become discoloured, contributing to both extrinsic stains on the enamel and intrinsic stains within the tooth structure. For example, staining can result from the consumption of coffee, tea, red wine, and other substances. Tobacco use, certain medications, and the natural ageing process are also factors.
How does teeth whitening work?
Teeth whitening primarily involves the use of hydrogen peroxide or carbamide peroxide. These bleaching agents penetrate the tooth enamel to reach the discoloured molecules within the tooth. The staining compounds are broken down through an oxidation reaction, resulting in a lighter tooth colour. [Source]
What are the common methods of teeth whitening?
There are two prevalent methods:
1 Professional Whitening: Performed by dental professionals, this method involves the use of high-concentration bleaching agents, sometimes activated by special lights. The procedure achieves immediate results and typically lasts about 60 to 90 minutes.
2 At-Home Whitening: This DIY method involves over-the-counter products including custom-fitted trays, strips and gel. Lower-concentration bleaching agents are used and results are more gradual, often becoming noticeable over a period of days to weeks.
Is teeth whitening safe?
When conducted under professional supervision or following product guidelines, teeth whitening is generally safe. However, some individuals may experience temporary tooth sensitivity or gum irritation. It’s best to consult with your dentist before undergoing whitening treatments, especially if you have existing dental conditions. [Source]
How long does teeth whitening last?
Teeth whitening results can last from several months up to 3 years. How long varies according to the habits of the individual. If you hope to prolong the results, it’s advisable to avoid foods and beverages that stain teeth, maintain good oral hygiene, and consider periodic touch-up treatments as recommended by a dental professional.
Does teeth whitening have any side effects?
The most common side effect is tooth sensitivity, which usually subsides shortly after the treatment concludes. Gum irritation can also occur if the bleaching agent comes into contact with soft tissues. Adhering to the dentist’s instructions and using products as directed can minimise these risks.
Who should avoid teeth whitening treatments?
Teeth whitening is not suitable for everyone. If you have active tooth decay, gum disease, or hypersensitive teeth, you should address these issues before considering whitening. Additionally, the use of whitening agents is not recommended for pregnant or lactating women. Teeth whitening does not work on dental restorations such as crowns or veneers.
What should one expect during professional teeth whitening?
Your teeth whitening procedure at the dental clinic begins with the dentist first assessing your oral health. A protective barrier is applied to the gums to shield them from the bleaching agent. Whitening gel is then applied to the teeth. In some teeth whitening procedures, a special light is used to enhance the bleaching process. The entire session typically lasts about an hour and results of the treatment are visible immediately.
Do over-the-counter whitening products work?
Over-the-counter products, including whitening strips and toothpaste, can offer modest improvements in tooth colour. They contain lower concentrations of bleaching agents compared to professional treatments, with less dramatic results that are also slower to appear. To ensure these products are appropriate for your needs, it’s wise to consult with a dentist. The products also need to be used exactly as directed.
What will tooth whitening chemicals do to my microbiome?
Teeth whitening chemicals, primarily hydrogen peroxide and carbamide peroxide, are intended to break down staining molecules in the tooth enamel. These agents have antibacterial properties but, when used as directed, their impact on the oral microbiome—the community of beneficial and harmful bacteria in the mouth—is generally temporary and minimal.
Short-term use of whitening treatments may reduce bacterial levels, including those linked to plaque and gum disease. However, frequent or excessive use could disrupt microbial balance. This could potentially lead to increased sensitivity, gum irritation, or an environment more susceptible to harmful bacteria.
To maintain a healthy oral microbiome while whitening teeth, it’s essential to:
• Follow product guidelines and avoid overuse.
• Maintain a balanced diet to support beneficial bacteria.
• Use fluoride toothpaste to help protect enamel.
• Stay hydrated to support natural saliva production, which helps regulate oral bacteria.
If you have concerns about your oral microbiome, consult your dentist before starting a whitening regimen.
How can one maintain the results of teeth whitening?
To maintain a brighter smile post-whitening:
• Practice diligent oral hygiene by brushing twice daily and flossing regularly.
• Limit the intake of staining substances like coffee, tea, red wine, and tobacco.
• Consider using a straw for beverages that can stain teeth.
• Schedule regular dental check-ups and cleanings.
• Discuss with your dentist about at-home touch-up kits or maintenance treatments to prolong the whitening effects.
Now that you understand the science behind teeth whitening and setting realistic expectations, you can make informed decisions about achieving and maintaining a brighter, more confident smile.
