Free Thinking - Smell: Michele Roberts, A history of dentistry

Michèle Roberts' latest novel evokes Victorian London. Matthew Sweet asks how it smelt and what do museums do to create past smells. Plus a cultural history of dentistry with the medical historian Richard Barnett. The Walworth Beauty by Michèle Roberts is out now. The Smile Stealers: The Fine and Foul Art of Dentistry by Richard Barnett is out now. Producer: Fiona McLean.