Why Do Teeth Become Discoloured?
Tooth discolouration is a common concern and can occur for many reasons, including:
- Tea and coffee
- Red wine
- Tobacco use
- Ageing
- Certain medications
- Poor oral hygiene
- Natural staining over time
Even patients with excellent oral hygiene may notice gradual darkening or staining of their teeth as they get older. Professional whitening can help reverse many of these effects and restore a brighter appearance.

What Is Professional Teeth
Whitening?
Professional teeth whitening is a cosmetic treatment designed to lighten the colour of natural teeth using carefully formulated whitening agents. Unlike over-the-counter products, professional whitening is provided under dental supervision and tailored to your individual needs, allowing for safer treatment and more predictable results.
The goal is to reduce staining and brighten the overall appearance of your teeth while keeping the result looking natural.
Which Whitening Option Is
Right for You?
We offer both in-surgery and at-home whitening, and can help you decide which suits your lifestyle and goals at your consultation.
In-Surgery Whitening
- Fastest results
- Completed in a single ppointment
- Ideal before an event
- Immediate improvement
VS
Home Whitening
- More gradual results
- Worn using custom-made trays at home
- Fits around your own schedule
- Convenient and flexible
Why Choose Professional Whitening?
A common worry patients have is whether whitening will damage their teeth.
Here’s why professional supervision matters:
- Safe for your enamel when carried out under professional supervision
- Tailored to your teeth and the cause of your staining
- Predictable, consistent results
- Much safer than shop-bought or online whitening kits
Benefits of Professional Teeth Whitening

Who Is a Suitable Candidate for Teeth Whitening?
Teeth whitening may be suitable for adults who wish to improve the colour of their teeth and have healthy teeth and gums.
You may be a good candidate if you:
- Have stained or discoloured teeth
- Want a brighter smile
- Maintain good oral health
- Have realistic expectations
- Are looking for a minimally invasive cosmetic treatment
A consultation allows us to determine whether whitening is suitable and discuss the results you might expect.
Professional Whitening vs
Shop-Bought Products
Many whitening products are available online and in shops, but results can vary significantly.
Professional whitening offers several advantages:
Planning for a Wedding, Holiday, or Big Event?
Many patients choose to whiten ahead of a wedding, holiday, graduation, or job interview. If you have a date in mind, let us know when you book so we can plan your treatment with enough time to see results.
What Results Can You Expect?
Results vary depending on the starting shade of your teeth, the cause of staining, and individual factors. Many patients notice a brighter smile, reduced staining, improved confidence, and a fresher overall appearance. The goal is always a natural-looking improvement that complements your appearance.
How Long Do Whitening Results Last?
The longevity of your results depends on lifestyle habits and oral hygiene, including consumption of tea and coffee, smoking, red wine intake, and how well you maintain your oral hygiene routine. Many patients maintain their results through good oral care and periodic whitening top-ups when appropriate.
Maintaining Your Whiter Smile
After whitening treatment, we recommend:
- Maintaining excellent oral hygiene
- Attending regular hygiene appointments
- Limiting stain-causing foods and drinks where possible
- Following your personalised aftercare advice
- Scheduling routine dental examinations
Teeth Whitening as Part of a
Smile Makeover
Teeth whitening is often included as part of a broader cosmetic treatment plan. It may be combined with composite bonding, porcelain veneers, Invisalign, or smile design treatments. A brighter smile can provide an excellent foundation for other cosmetic enhancements.
Why Choose Mona Lisa Smiles for Teeth Whitening?
At Mona Lisa Smiles, we understand that every smile is unique.
We provide:
- Professional teeth whitening tailored to your individual needs
- Experienced cosmetic dentists
- Treatment carried out under full professional supervision
- High-quality professional whitening systems
- Personalised treatment plans designed around your smile
- Ongoing support before, during and after treatment
Our aim is to help you achieve a brighter, fresher and naturally beautiful smile while ensuring your treatment is comfortable, carefully planned and suited to you.
Frequently Asked Questions
Professional teeth whitening can brighten your smile by several shades, with results varying based on your natural tooth color and the type of staining.
When performed professionally, teeth whitening is safe and will not damage your teeth or enamel.
Whitening can effectively remove many surface stains, but deeper or intrinsic discoloration may require additional treatment.
Whitening works on natural teeth but does not change the color of crowns, fillings, or other dental restorationsr fillings?
Book Your Teeth Whitening Consultation
If you’d like to achieve a brighter, more confident smile, book your teeth whitening consultation today. Contact Mona Lisa Smiles to arrange a visit and learn how our teeth whitening treatments in Barnet can help you achieve a healthier, brighter-looking smile.





