As the ninth series of ITV show Love Island kicked off yesterday, viewers may have noticed contestants’ perfectly straight, white teeth. But are there risks associated with achieving a flawless smile? 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>

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