The collection agency North American Recovery sued Ramos in 1995 over the dental bill.
She didn't contest the lawsuit, not realizing the consequences. Her house in the Salt Lake City suburb of Glendale was sold the next year to a group of investors.
On Thursday, the Utah Court of Appeals sent the case to 3rd District Court for a hearing on whether Ramos had proper notice of the sheriff's sale and whether the sale price was "grossly inadequate."