ORALDNA LABS INTRODUCES TWO SALIVARY DNA TESTS TO SUPPORT DENTISTS’ FIGHT AGAINST PERIODONTAL DISEASE

Molecular DNA Tests Positioning Dental Professionals at the Forefront of Oral Medicine - Company Planning the Launch of HPV/Oral Cancer DNA Test in 2010

Nashville, TN – November 16, 2009 – OralDNA Labs™ Inc. (www.OralDNA.com),
a specialty diagnostics subsidiary of Quest Diagnostics® Incorporated (NYSE: DGX) focused on bringing advanced laboratory testing to the dental community, today announced the availability of two revolutionary molecular tests to help periodontists and general dentists identify patients with and at risk for periodontal disease. MyPerioPathsm detects the presence and quantity of specific bacteria associated with periodontal disease, while MyPerioIDsm PST®, which the company licenses from Interleukin Genetics, provides a means of quickly and accurately1 assessing an individual’s genetic risk for periodontal disease.

Used together, the new salivary DNA diagnostic tests can help dental professionals reduce patient incidence of periodontal disease. MyPerioPathsm provides early and accurate1 diagnosis of existing periodontal disease by identifying and measuring specific types of bacteria, while MyPerioIDsm PST® assesses a patient’s genetic predisposition to developing periodontal disease well before physical symptoms occur. The company has launched a national dental industry awareness and training program to support the profession’s understanding and effective use of the new tools.

According to OralDNA Inc. senior vice president and general manager Robert Walker,

the company has been introducing the tests to leading dental industry practitioners
during the past year. “Leading periodontists and general dentists are already relying
on the MyPerioPathsm and MyPerioIDsm PST® salivary diagnostic tests to provide valuable insights for enhanced patient care, and as important tools in the fight against periodontal disease. We believe these tests will not only help put dental professionals at the forefront of oral medicine, but also enable them to provide more comprehensive and accurate treatment plans for their patients.”

According to the American Dental Association, an estimated 75% of all Americans over the age of 35 have some form of periodontal disease2 and research conducted during the past 10 years has provided insight into the Perio / Systemic Connection and the link between chronic periodontal infections and heart disease, diabetes, stroke, and some forms of cancer.3,4

Within the next year, OralDNA expects to add the clinician-administered oral DNA HPV test, OraRisksm HPV, for use in assessing the risks associated with certain types of oral cancer, and intends to continue to broaden its menu of salivary diagnostic tests for use in oral medicine.

For more information, education, and training related to OralDNA’s salivary DNA diagnostic tests, dental professionals, including periodontists, general dentists, and dental hygienists, should visit www.OralDNAtraining.com or call (877) 577-9055.