Comment: Science, not Ashton, could get us chewing gum

Wrigley dominates chewing gum - its market share in the UK for example is north of 80% - but in a bid to keep growing (and indeed freshen up slowing sales) here, the Mars-owned business has embarked on a series of initiatives. But could emphasising the link between sugar-free gum and oral health in a more direct way give a bigger boost to sales?