The Northwestern Health Unit (NWHU) is warning patients who underwent dental procedures at the Red Lake Dental Clinic between September 2, 2022, and May 16, 2025, that they may have been exposed to improperly sterilized dental instruments.
Health officials emphasize that the risk of infection is low, but recommend that those affected consult their primary care physician about testing for hepatitis B, hepatitis C, and HIV. Patients who do not have access to a doctor, nurse practitioner, or local care center are advised to contact the NWHU for assistance.
Dr. Kit Young Hoon, Medical Officer of Health, said Tuesday:
“I understand this information may be concerning. However, we are not aware of any infections associated with this incident.”
She added that people should not rush to the emergency room and should instead schedule an appointment with a healthcare provider in the coming weeks. Doctors and nurse practitioners can help assess individual risk based on medical history.
The Royal College of Dental Surgeons of Ontario (RCDSO) first reported infection prevention and control concerns at the clinic to the NWHU on April 10, 2025. Public Health Ontario subsequently conducted multiple site visits and detailed reviews, launching a follow-up investigation.
During this process, the NWHU ordered the clinic to suspend the reprocessing (cleaning and sterilization) of dental instruments until standards were met. This effectively halted all dental services at the clinic.
Dr. Young Hoon confirmed that the clinic remains closed.
The NWHU clarified that the dental clinic does not undergo regular infection control inspections. Dentistry is a self-regulated profession and is responsible for maintaining safety standards. The RCDSO and the College of Dental Hygienists of Ontario have been informed of the investigation.