AstraZeneca sells its med tech arm to Dentsply for $1.8 billion in cash | Deals Roundup June 23, 2011 By MassDevice staff Leave a Comment AstraZeneca plc (NYSE:AZN) announced that it signed a definitive agreement to sell its medical device arm, Astra Tech, to dental device maker Dentsply International Inc. (NSDQ:XRAY) for $1.8 billion in cash.