Health officials notified patients, who went to a dental clinic in Tulsa, Okla., on Friday to seek medical screening for hepatitis B, hepatitis C and HIV, the New York Times reported.
Dr. W. Scott Harrington, who received his state dentistry license in 1974, violated health and safety regulations in his clinic, the New York Times reported.
Health officials sent letters to 7,000 known patients to be tested for hepatitis B, hepatitis C and HIV, which are viruses not used in occupational settings,
Harrington was a "menace to the public health by reasons of practicing dentistry in an unsafe or unsanitary manner," according to Oklahoma Dentistry Board's 17-count complaint against him Thursday, Star Tribune reported.
"The CDC has determined that rusted instruments are porous and cannot be properly sterilized," the board said, Star Tribune reported.
Durning the initial inspection, the office was found generating serious sterilization issues and a open drug cabinet, the New York Times reported.
Harrington's office has "high population of known infectious disease carrier patients," instruments last tested 6 years ago and a drug vial found expired in 1993, according to the board complaint, Star Tribune reported.
Harrington's license could be permanently revoked after his hearing on April 19.
The Tulsa Health Department will offer free testing at a local clinic on Saturday and Monday, the New York Times reported.