Because the over the counter kits do not have customised trays, it can cause sensitivity dues to the bleaching solution not being evenly distributed over the teeth. Saliva may also be able to seep into the trays and dilute the solution making it less effective. Many over the counter solutions also contain an acidic rinse which can remove amounts of tooth structure, and contain a lower amount of peroxide making it a weaker solution.

You will need to book an appointment with your dentist/hygienist, who will take impression and then make custom fitted trays which will allow you to whiten your teeth while you sleep. It is a take home treatment which is as simple as distributing the opalescence solution (16% Carbamide Peroxide) into the compartments in the trays, and then applying them to the teeth. We recommend bleaching your teeth for approximately 10 days unless you are happy with the results sooner.

You should see results from the treatment straight away. Depending on how stained your teeth are, the results may be more dramatic for more heavily stained teeth or less dramatic for whiter teeth. Once your teeth have been whitened it can last a few years, although some people do find they need periodic touch-ups once or twice a year. How long the whitening lasts does depend on your oral habits, and what food and drink you consume often.