BriteSmile Files New Patent Infringement Suit Against Discus Dental

WALNUT CREEK, Calif., Nov. 4  /PRNewswire-FirstCall/ -- BriteSmile Development, Inc. ("BDI"), a wholly owned subsidiary of BriteSmile, Inc. (NasdaqSC: BSML) filed on October 28, 2005, a patent infringement suit against competitor, Discus Dental, Inc. ("Discus") in federal court in California. The suit alleges that Discus' Zoom! 2 tooth whitening system infringes a patent issued to BDI on October 25, 2005, because it employs a high pH pre- treatment prior to contacting teeth with a hydrogen peroxide composition.

BriteSmile and Discus have been involved in patent litigation since 2002 over patents directed to novel tooth whitening technology owned by BriteSmile and BDI.  The new suit alleges that, as a result of that litigation, Discus attempted to reformulate its tooth whitening products to avoid infringement -- including launching the Zoom! 2 Chairside Whitening System.  The new suit alleges that, despite the reformulation, the Zoom! 2 system infringes the newly issued BDI patent.

BriteSmile has developed and markets the most advanced teeth whitening technology available, as well as manages state-of-the-art BriteSmile Professional Teeth Whitening Centers. BriteSmile Centers are currently operating in Beverly Hills, Irvine, Palo Alto, Walnut Creek, San Francisco and La Jolla, CA; Houston, TX; Denver, CO; Boston, MA; McLean, VA; Atlanta, GA; New York, NY; Chicago and Schaumburg, IL; and, Phoenix, AZ. In addition to BriteSmile Centers, the Company has established more than 5,000 Associated Centers. Of the BriteSmile Associated Centers, more than 2000 are located outside of the United States, in more than 75 countries.  For more information about BriteSmile's procedure, call 1-800-BRITESMILE or visit the Company's Website at http://www.britesmile.com/ . 

DATASOURCE: BriteSmile Development, Inc.



CONTACT:  INVESTORS: Kenneth A. Czaja, CFO, [phone] or MEDIA:

Chris Edwards, [phone], both for BriteSmile



Web site:  http://www.britesmile.com/ 

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