LONG ISLAND CITY, N.Y.--(BUSINESS WIRE)--Sirona (Nasdaq: SIRO), the dental technology leader, today announced that John Sweeney, Vice President of Investor Relations, will present at the 2009 Jefferies Boston Healthcare Summit at the Langham Hotel on November 10, 2009. About Sirona Dental Systems, Inc. Sirona, the dental technology leader, has served dealers and dentists worldwide for more than 130 years. Sirona develops, manufactures, and markets a complete line of dental products, including CA
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