A setup for a digital impression for a denture is pictured at the Hanover industrial fair in Hanover
A setup for a digital impression for a denture is pictured at the Hanover industrial fair in Hanover, April 23, 2012. The world's leading fair for industrial technology, with about 5,000 exhibitors from 69 nations, runs till April 27 with China as this year's partner country. REUTERS/Ina Fassbender (GERMANY - Tags: POLITICS)