Here are the top 5 things to remember when using teeth whitening gel, from a dentist’s
perspective:

Follow Your Dentist’s Instructions

Not all whitening gels are the same—strengths vary, and overuse can damage enamel or irritate gums. Always use the gel for the recommended duration and frequency. Our dentist recommends low and slow, using Opalescence 10% Whitening Gel.

Protect Your Gums and Soft Tissues

Excess gel that leaks onto gums, lips, or tongue can cause irritation or chemical burns, especially at high concentrations. Apply only a small drop per tooth in the tray to avoid overflow.

Be Consistent, Not Excessive

Results come with steady use, not by leaving the gel in longer or whitening more often than prescribed. Overuse can increase sensitivity and weaken enamel.

Avoid Staining Foods and Drinks During Treatment

Coffee, tea, red wine, curry, and smoking can quickly stain teeth, reducing the effectiveness of whitening. Stick to a “white diet” (lighter-coloured foods/drinks) for best results.

Expect Some Sensitivity but Monitor it

Mild tooth sensitivity is common during whitening. If it becomes sharp, painful, or lingers, stop treatment and consult your dentist. They may recommend shorter sessions or using desensitising toothpaste. Our dentist recommends using Colgate Sensitive Pro-Relief toothpaste if you struggle with sensitivity.

Another great product for sensitivity is the GC Tooth Mousse, which has a range of other benefits too and comes is 5 delicious flavours.

Teeth whitening can be a safe and effective way to boost your smile, but only when it’s done carefully and under professional guidance. By following these tips, protecting your gums, and managing sensitivity, you can enjoy brighter teeth without compromising your oral health. Always remember: consistency and care matter more than speed. If you’re unsure about whitening or experiencing discomfort, check in with your dentist to make sure your smile stays both beautiful and healthy.