To be a hundred percent safe that you don't pick up the bad bacteria from the effects of flushing in the loo, many doctors recommend sterilizing toothbrushes on a regular basis. Fitting the bill is the In & Out Toothbrush, a brush that is easy to travel with and use. The mechanism recharges via a USB port and has a protective cap with display. Although not specified, I'm hoping the brush is not a plain manual one; the added attraction of a powered brush will be too hard to resist.
Designers: Jaewan Jeong, Ahn Joonggeun and Hwang Sunghyun