The two women visited Tigard City Dental in Portland, Ore., posing as customers, on Feb. 26. One woman stood at the front desk to schedule an appointment at the practice while the other individual went back to the breakroom.
Employees at Smiles Northwest in Cedar Hills, Ore., reported a similar situation the same day.
At this point, at least six different dental practices and businesses have been targeted by the thieves over the past two weeks.
Police have not made any arrests and the women have not been publicly identified, the report said.
