What Is Professional Teeth Whitening?
Professional teeth whitening is a clinically proven cosmetic dental treatment that removes deep, stubborn stains from the surface and inner layers of your teeth, restoring them to their natural brightness — and beyond. Unlike supermarket whitening strips, our professional-grade treatments use carefully calibrated bleaching agents that deliver dramatic, safe, and lasting results.
At Smile Art Dental, we offer two powerful whitening pathways: in-office Zoom whitening for immediate, dramatic results in a single appointment, and custom take-home whitening kits for a more gradual, controlled brightening experience. Both options are overseen by our qualified dental team, ensuring your comfort, safety, and optimal outcomes throughout.
Before any whitening procedure, our dentists perform a full oral health assessment to ensure your teeth and gums are healthy and ready for treatment. We also shade-match your teeth to set realistic expectations and track your remarkable results from start to finish.
Expert tip: Professional whitening at a clinic is significantly safer and more effective than over-the-counter products. Our gel concentrations and custom trays ensure even coverage and zero sensitivity damage.
Benefits of Professional Teeth Whitening
Discover why thousands of Nairobi patients choose professional whitening over home remedies and commercial products.
Up to 8 Shades Whiter
Our professional-grade whitening systems achieve results simply not possible with over-the-counter products — delivering a truly transformative brightening effect in a single session or a brief home programme.
Safe, Professional-Grade Products
Every product we use is clinically approved and applied under dental supervision. Our tailored approach ensures your enamel and gums remain fully protected throughout the entire whitening process.
Long-Lasting Results
With proper aftercare and periodic maintenance, professional whitening results can last 1–3 years. We'll guide you on the best lifestyle habits to maximise and preserve your brighter smile.
Custom Trays for Even Application
Our take-home kits include custom-fitted trays moulded precisely to your teeth. This ensures the whitening gel covers every surface evenly, eliminating blotchy results or missed spots.
How It Works
Your Whitening Treatment Step by Step
A carefully managed process designed for safety, comfort, and the most dramatic results possible.
One: Consultation & Shade Assessment
Your treatment begins with a thorough dental examination and shade mapping using our professional shade guide. We document your current tooth colour and establish realistic target outcomes tailored to your natural dentition.
Two: Gum Protection Application
A protective gel or rubber dam is carefully applied to your gums and soft tissues before any whitening agent touches your teeth. This critical step ensures your gum tissue is fully shielded from the bleaching gel.
Three: Professional Whitening Gel Applied
A precisely measured quantity of our high-concentration professional whitening gel is applied evenly to all visible tooth surfaces. The gel is formulated to penetrate enamel safely and break down deep discolouration molecules.
Four: Light Activation (Zoom Technology)
For in-office Zoom whitening, a special blue LED light is directed at your teeth to accelerate and enhance the bleaching process. This activation dramatically increases the effectiveness of the whitening gel for faster, brighter results.
Five: Multiple Sessions & Monitoring
Depending on your chosen treatment and target shade, the gel application and light activation cycle may be repeated 2–3 times in a single appointment. Our team monitors your comfort and progress throughout each cycle.
Six: Results Assessment & Aftercare
At the conclusion of your session, we assess your final shade result against your initial baseline and provide detailed aftercare instructions — including dietary guidance and touch-up recommendations to maintain your brilliant results.
Frequently Asked Questions
Everything you need to know about professional teeth whitening at Smile Art Dental.
Most patients achieve 4–8 shades of whitening improvement, though individual results vary based on the original tooth colour and the type of staining present. Yellow stains from food, drink, and smoking respond most dramatically. Intrinsic stains (from medication or trauma) may respond less predictably. During your initial consultation, we’ll provide a realistic assessment of your expected outcome based on your specific tooth colour and condition.
With proper aftercare, professional whitening results typically last 1–3 years. The longevity depends significantly on your diet and lifestyle habits — coffee, tea, red wine, and smoking accelerate re-staining. We recommend avoiding dark foods and beverages for the first 48 hours after treatment (the “white diet”), using a whitening toothpaste for maintenance, and scheduling annual touch-up sessions to keep your smile consistently bright.
Yes — professional teeth whitening is very safe when performed by a qualified dental team. Our products are approved for professional dental use, and our process includes full gum protection and monitoring throughout. Some patients experience temporary sensitivity lasting 24–72 hours post-treatment; this is normal and resolves quickly. We do not recommend whitening for pregnant women, children under 18, or patients with certain dental restorations without a prior consultation.
Tooth discolouration has many causes. Extrinsic (surface) staining is most commonly caused by regular consumption of tea, coffee, red wine, and dark-coloured foods, as well as tobacco use. Intrinsic (deep) staining can result from certain medications (particularly tetracycline antibiotics taken in childhood), excess fluoride exposure during tooth development, ageing (as enamel naturally thins), or previous dental trauma. Professional whitening is most effective on extrinsic staining; our dentist will advise on the most appropriate approach for your situation.
Whitening agents only work on natural tooth enamel — they do not change the colour of dental restorations such as crowns, veneers, bridges, or tooth-coloured fillings. If you have visible restorations in your smile zone, this is an important consideration. In some cases, patients choose to whiten their natural teeth first and then replace older restorations to match the new, brighter shade. We’ll discuss the best strategy for your unique smile during your consultation.