Private equity firms are planning to bid for AstraZeneca’s dental and medical devices unit, Astra Tech, The Wall Street Journal reports. Firms interested in the auction include Permira, Advent International, Bain Capital, Warburg Pincus, Cinven Group and Apax Partners. JPMorgan Chase, who was appointed to run a strategic review of the business, will manage the sale. The first round of bids is due in mid March 2011. The value of the deal is estimated to be about $2 billion.

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