Professional Teeth Whitening: Options, Safety & Results That Last
Professional whitening lifts stains toothpaste can't, safely and evenly. Here's how it compares to shop-bought kits, and how to make results last.
Frequently Asked Questions
Will teeth whitening make my teeth sensitive?
Some people notice temporary sensitivity to cold during or just after whitening, which usually settles within a day or two. Because a professional treatment is supervised, your dentist can adjust the gel strength and recommend desensitising steps to keep it comfortable.
How long do whitening results last?
That depends heavily on your habits. Coffee, tea, red wine and smoking all re-stain teeth over time, so results might last several months to a couple of years. Occasional top-ups with a custom take-home tray are the easiest way to maintain the shade.
Will whitening work on crowns and veneers?
No. Whitening gel only lightens natural tooth enamel, so crowns, veneers and fillings keep their original colour. If you have visible dental work, it's worth planning the shade carefully so everything still matches after whitening natural teeth.
Is teeth whitening safe during pregnancy?
Whitening is usually postponed during pregnancy and breastfeeding — not because of proven harm, but because it hasn't been well studied in these groups, so the cautious approach is to wait. Your dentist can plan treatment for after this period.