To celebrate the success of the free Brush DJ app, a brand new iPod Touch and £100 of iTunes vouchers are up for grabs. To enter the prize draw, visit www.BrushDJ.com and vote for your favourite song to brush your teeth to. The draw will stay open until the end of November.

The Brush DJ app provides evidence-based information on how to prevent dental disease directly to users. To encourage brushing for an effective length of time the app plays two minutes of music taken at random from the user's smartphone or iPod Touch.

The app links to the NHS Smokefree, Healthy Eating and sensible alcohol limits websites. Users can set reminders to brush twice a day, change their toothbrush and make a dental appointment.