Despite the teething issues, Dyson’s Camerajet toothbrush packs in a lot of clever tech – but is it worth £420?

Dyson’s first electric toothbrush watches you brush and flosses for you, but there are far cheaper ways to get an effective clean • The best electric toothbrushes for every budget When Dyson announced it was entering the toothbrush market , the world responded almost as one…