PHILADELPHIA (KYW Newsradio) — Philadelphia health officials are urging patients at dentist practices in the city to get tested for HIV and other diseases.

The Philadelphia Department of Public Health is warning patients of Trieu Family Dental Clinics to get tested for HIV, hepatitis C and hepatitis B.

Officials say all three clinics have been closed for improper sterilization of dental equipment and failure to renew injection safety practices. They found the violations after an anonymous tip.

Those three Clinics are located on West Chew Avenue, North 5th Street, and Woodland Avenue. They've been shutdown since Dec. 7.

Officials believe the risk of infections are low and so far, they are not aware of any.

All Patients who received dental care between January 2017 and Dec. 7 have been notified of the potential health risks and advised to see a doctor for testing.

There is a hotline for people who may be worried about potential exposure, and they can call (215) 218-299 between 9 a.m. to 5 p.m., Monday through Friday.

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This is a developing story. Stay with KYW Newsradio for updates.