Sirona Dental Systems, Inc. (SIRO) Chairman, President and CEO to Ring the NASDAQ Stock Market Closing Bell


MEDIA ADVISORY, Aug. 30, 2006 (PRIMEZONE) --



 What:
 Jost Fischer, Chairman, President and CEO of Sirona Dental Systems,
 Inc. (SIRO) will preside over the closing bell.

 Where:
 NASDAQ MarketSite - 4 Times Square - 43rd & Broadway - Broadcast Studio

 When:
 Thursday August 31st, 2006 at 4:00 p.m. EDT

 Contacts:
 Kevin McGrath
 Cameron Associates, Inc.
 212.245.4577 - Direct
 kevin@cameronassoc.com

 NASDAQ MarketSite:
 Stephanie Lowenthal; 646.441.5220

Feed Information:

The closing bell is available from 3:50 p.m. to 4:05 p.m. on uplink IA-6 C-band/transponder 17. The downlink frequency is 4040 Vertical; Audio 6.2-6.8. The feed can also be found on Waterfront fiber 1623. If you have any questions, please contact Stephanie Lowenthal at (646) 441-5220.

Photos:

To obtain a hi-resolution photograph of the Market Close, please go to http://www.nasdaq.com/reference/marketsite_events.stm and click on the market close of your choice.

About Sirona Dental Systems, Inc. (SIRO):

Recognized as one of the world's leading manufacturers of high quality dental equipment and technologies, Sirona (formerly Siemens Dental) has served equipment dealers and dentists worldwide for more than 125 years. Sirona develops, manufactures, and markets a complete line of dental products, including the CAD/CAM restoration equipment (CEREC), digital and film-based intra-oral, panoramic and cephalometric X-ray imaging systems, dental treatment centers and handpieces. On June 20, 2006, Sirona completed its acquisition of Schick Technologies, an ISO 9001 certified company, which designs, develops, and manufactures innovative digital x-ray imaging systems for the dental markets, based on proprietary digital imaging technologies. Sirona's worldwide headquarters are located in Bensheim, Germany, with U.S. headquarters in Long Island City, New York. Visit http://www.sirona.com for more information about Sirona and its products.


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