It is a non-invasive treatment that aims to enhance the aesthetic appearance of the teeth. The procedure can be performed in a dental office or using at-home whitening kits prescribed by a dentist.

The most common method involves the use of a bleaching agent, usually containing hydrogen peroxide or carbamide peroxide. In-office treatments often utilise a stronger concentration of the bleaching agent and may involve the use of a special light or laser to accelerate the whitening process. At-home kits typically involve custom-fitted trays filled with the bleaching gel.

Before beginning any teeth whitening procedure, a dentist evaluates the patient's oral health to ensure suitability. Existing dental restorations like crowns or veneers do not respond to whitening agents, so their colour may need to be addressed separately.

Teeth whitening is a popular and effective way to improve the brightness of natural teeth, but results may vary based on individual factors such as the type and cause of discoloration. Regular dental check-ups and proper oral hygiene practices contribute to maintaining a bright and healthy smile after whitening.

The commonly used bleaching agents, such as hydrogen peroxide or carbamide peroxide, have been deemed safe for dental use. However, it's crucial to follow recommended guidelines to minimise potential risks.

Some individuals may experience temporary tooth sensitivity or gum irritation during or after the whitening process. This is typically mild and subsides after the treatment. Overusing whitening products or not following instructions can lead to more significant sensitivity or damage to the enamel.

Professional dental supervision ensures that the whitening procedure is tailored to an individual's specific needs, reducing the risk of complications. Dentists can also identify any pre-existing dental issues that may affect the safety of the whitening process.

At-home whitening kits, when provided by a dentist and used as directed, are generally safe. Over-the-counter products may have lower concentrations of bleaching agents, reducing their effectiveness and potential side effects.

Pregnant or breastfeeding individuals, those with allergies to whitening agents, or individuals with certain dental conditions may need to avoid teeth whitening. Consulting with a dentist before undergoing any whitening procedure ensures personalised recommendations and a safer experience.

Professional treatments often use higher concentrations of bleaching agents, providing more significant and longer-lasting results compared to OTC alternatives.

Dentists can tailor the whitening procedure to an individual's specific needs, taking into account factors like the cause of discoloration, the presence of dental restorations, and overall oral health. Additionally, in-office treatments may involve the use of special lights or lasers to enhance the whitening process, which is not commonly found in OTC products.

Professional supervision ensures that the whitening process is conducted safely, minimising the risk of overuse or misuse of whitening agents, which could lead to tooth sensitivity or other complications.

While OTC whitening products can produce some level of improvement, their lower concentrations of bleaching agents may result in less dramatic results compared to professional treatments. Moreover, individuals with pre-existing dental conditions or those seeking more customised solutions may benefit more from professional teeth whitening.

Ultimately, the choice between professional and OTC teeth whitening depends on individual preferences, budget considerations, and the desired level of results. Consulting with a dentist can help determine the most suitable approach for achieving the desired teeth-whitening outcomes.

The duration of teeth whitening results can vary based on several factors, including the method of whitening, individual habits, and oral care practices. In general:

1. Professional in-office whitening: Results from in-office whitening procedures performed by a dentist can last anywhere from several months to a year or more. However, maintenance may be required if habits like smoking or consuming staining foods and drinks persist.
2. At-home professional whitening kits: Whitening results from at-home kits provided by a dentist tend to last for a similar duration as in-office treatments, but individual outcomes may vary.
3. Over-the-counter whitening products: Results from OTC whitening products are typically less durable than professional treatments. The effects may last a few weeks to a few months, and ongoing use may be necessary to maintain the desired level of whiteness.

To extend the longevity of teeth whitening results, individuals are advised to practise good oral hygiene, including regular brushing and flossing, and to avoid or limit consumption of staining substances like coffee, tea, red wine, and tobacco. Maintaining regular dental check-ups allows dentists to monitor oral health and provide guidance on maintaining whitening results. Additionally, occasional touch-up treatments may be recommended to combat natural discoloration over time.