Spraying alive: From liquid plasters to spray-on tooth enamel, how a little squirt can now work miracles

Spraying alive: From liquid plasters to spray-on tooth enamel, how a little squirt can now work miracles | UPDATED: 23:03 GMT, 27 August 2012 Sprays are a constant feature in our daily lives — they make us smell sweet, keep our kitchens sparkling and fix our hair.