He is on a mission that has eluded Big Toothbrush for years: the two-minute clean. That is the amount of time dentists say it ...

The case also stores two brush heads. The X Ultra S comes with three replaceable brush heads in the box, each one catering to a different type of clean, like gum sensitivity or whitening.

medium-stiffness bristles and a small brush head. “Don’t let the cost of really expensive brushes put you off,” says Dr Sharma. “Even the most reasonably priced ones can have the features ...