How to keep your teeth pearly white?13:28Follow and SubscribeFollow and SubscribeFollow and Subscribe Download (6.17MB)Download the SBS Audio appAvailable on iOS and AndroidDr. Piyakul Oparkcharoen, a dentist from Melbourne, explained what causes stained and yellow teeth and how to make them whiter.Follow and Subscribe Download (6.17MB)Download the SBS Audio appAvailable on iOS and AndroidPublished 17 January 2017 5:02pmBy Parisuth SodsaiSource: SBSAvailable in other languagesSkip to podcast episode contentShare this with family and friendsCopy linkShareDr. Piyakul Oparkcharoen, a dentist from Melbourne, explained what causes stained and yellow teeth and how to make them whiter.Image: AAPShare