Many of those DIY teeth whitening remedies you may see on the Internet can be harmful to teeth. Although made from ‘natural’ ingredients, some of these techniques can be abrasive to tooth enamel or irritating to the gums. In professional treatment, you can be assured of receiving safe and high-quality bleach that comes with professional oversight.

Teeth bleaching that is overseen by a dental professional is perfectly safe. Your treatment will be most effective when you follow the instructions your dentist gives you.

The exact time varies from person to person, but most people do notice a difference within two weeks of starting their at-home teeth whitening regimen. Depending on how your teeth respond to the whitening gel, you may notice a change right away.

Your teeth can stay white for many months after whitening. But new stains that accumulate over time will lead to new discolouration. You may have to occasionally retouch your tooth colour to keep your smile bright, but maintaining good oral hygiene and avoiding smoking and dark-coloured foods can help you keep your teeth white for a long time.

When it is done properly, and with moderation, bleaching does not have to make your teeth sensitive. The powerful bleaching agents in whitening gels can cause temporary sensitivity, if used to excess. This is because they open up enamel pores, reducing the natural insulation of teeth. Simply follow the instructions your dentist gives you to minimise discomfort while you whiten.