The Tulsa Health Department, the Oklahoma Board of Dentistry, and the Oklahoma State Department of Health are investigating a private dental practice that may have exposed more than seven thousand patients to HIV, hepatitis B, and hepatitis C.

The State Board of Dentistry says the procedures at Dr. W. Scott Harrington's practice may have put more than seven thousand patients at risk of contracting the blood-borne illnesses.

Dr. Harrington has voluntarily closed his practice during the investigation.  Patients are being reminded that the diseases to which they may have been exposed often do not present symptoms for many years.

Anyone who has family in the area, or who may have been treated at the practice since 2007 is strongly encouraged to contact the Tulsa Health Department at: (918) 595.4500.