Best of First Up for Wednesday 20 November

On the podcast today: calls for dental care to be subsidised or free; the mother of a University of Otago medical student says it's overkill to stop interns from graduating with their peers, despite being caught abusing their overseas work placements; female railway workers take drastic action to limit toilet time because of a lack of facilities and rare 118-million-year-old fossil feathers discovered in Australia show the first evidence that polar dinosaurs were in Australia.