Fraser Health says patients of Valentyn Uvarov may be at risk of blood-borne infections from exposure to unsterilized equipment.
It says an investigation found Uvarov was potentially reusing anesthetic containers.
The College of Dental Surgeons of BC also says Uvarov was treating patients without a license.
Anyone who received treatment from him is being advised to see a doctor or call Health Link at 811 about any concerns.
Fraser Health says symptoms of some infectious diseases are usually not present early on and can often be mistaken for the flu.