Associate Professor Laurie Walsh chats with episode host, Helen Hayes, about teeth whitening in the Australian Dental Association's Watch Your Mouth podcast. They chat about what causes teeth to become dark or stained, the science of teeth whitening including blue light devices commonly seen online, and whether fillings and dental crowns can be lightened.

For more information on teeth whitening, see www.teeth.org.au/teeth-whitening

Watch Your Mouth is made possible thanks to Extra Oral Healthcare Program.