Teeth whitening is a popular cosmetic dental procedure that can significantly lighten your teeth’s natural colour without removing any of the tooth’s surface. It is mostly used to enhance the brightness of one’s smile by removing stains and discolouration.
How Does Teeth Whitening Work?
Teeth whitening is primarily done through two main methods: professional whitening in a dental clinic and at-home whitening treatments. Both methods usually involve the use of bleaching agents, typically containing hydrogen peroxide or carbamide peroxide, that break stains into smaller pieces, making the colour less concentrated and teeth brighter.
In-chair whitening: This process is performed by a dental professional and involves applying a highly concentrated bleaching gel to the teeth while protecting the gums with a shield or gel. Special lights or lasers can be used to enhance the effect of the whitening agent. The procedure typically takes about 30 to 90 minutes and may require several visits to achieve desired results.
At-home whitening: Although there are a range of at-home whitening products such as whitening toothpaste, over-the-counter gels, and strips; the most effective is custom-made trays made and fitted by dentists for use with a whitening agent. At-home treatments are generally used for longer periods, from a few days to several weeks, depending on the product’s instructions and desired whitening level.
What Are the Risks of Teeth Whitening?
While generally safe when directions are followed or when you make use of a dentist with a proven track record with teeth whitening, the process can have some potential risks or side effects:
Tooth Sensitivity
This is one of the most common side effects, where teeth become temporarily more sensitive after bleaching. This occurs because the hydrogen peroxide in whitening agents penetrates the enamel and irritates the tooth nerve.
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Gum Irritation
Also known as gingival irritation, this can happen when the whitening product comes into contact with the gums, causing redness and irritation.
Uneven Whitening
This can occur especially if the whitening agent is not applied evenly or if there are existing fillings, crowns, or bonding materials that do not whiten along with the tooth enamel, resulting in a patchy appearance.
Overuse
Excessive use of whiteners can also damage the tooth enamel or gums, leading to increased sensitivity and other dental issues.
Is Teeth Whitening Painful?
The teeth whitening process is usually not painful, but it can cause temporary discomfort, particularly in the form of sensitivity to temperatures or touch. People with existing dental issues such as cavities, gum disease, worn enamel, or exposed roots may experience more sensitivity. Generally, any sensitivity or discomfort from teeth whitening is temporary and should ease within a few days after completing the treatment.
Is Teeth Whitening Permanent?
Teeth whitening is not a one-time procedure and needs to be repeated over time to maintain. The whitening effects can last from a few months up to 3 years but vary significantly from person to person.
The longevity of the whitening will be influenced by personal habits such as diet, oral hygiene, and consumption of teeth-staining substances like coffee, tea, tobacco, and red wine. Touch-up treatments are often needed to maintain whiteness, especially if one continues with habits that stain teeth.
Teeth Whitening Perth
For a safe and effective teeth whitening experience, visit First Impressions Dental at any of our locations around Perth. With the professional guidance of our friendly dentists, you can be sure to get optimal results safely.