As the 10th series of the ITV show finishes, viewers may have noticed the perfectly straight, white teeth of the contestants. But are there risks associated with achieving a flawless smile? In this episode from January 2023, Madeleine Finlay speaks to dentist Paul Woodhouse about some of the dangers of dental tourism. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>
