Pulse: Gum Disease08:37Dentist Source: AAPSBS CantoneseView Podcast SeriesFollow and SubscribeApple PodcastsYouTubeSpotifyListnrDownload (3.95MB)Download the SBS Audio appAvailable on iOS and Android What is gum disease? How cah people prevent from having gum problems? Dentist Dr Timmy Ngai explains.ShareLatest podcast episodesCalvin has driven buses in Australia and Hong Kong. He lists the 'big differences'[Cantonese] Australia and its people | Episode 1[Cantonese] Australia's democratic beliefs, rights and liberties | Episode 2[Cantonese] Government and the law | Episode 3