This dental device was sold to fix patients' jaws. Lawsuits claim it wrecked their teeth.

"More than 10,000 dental patients have been fitted with an Anterior Growth Guidance Appliance, or "AGGA," according to court records. But the unproven and unregulated dental device, often costing patients about $7,000, has not been evaluated by the FDA, according to a months-long joint investigation by KHN and CBS News."