Ah-ah! I wonder if the invetor of this gadget had a little time lord or two who took some persuasion to brush their teeth before bed time.
This electric toothbrush is an officially licensed product and approved by dentists. Perhaps the best bit on the Firebox page selling it is the comment;
“Get rid of that Fish Custard breath”
Good to see a proper Doctor Who fan writing the copy. Not sure about the “Gallifreyan gingivitis”, though!