A Tennessee dentist who has been sued by multiple TMJ and sleep apnea patients over an unproven dental device he invented has said under oath that he never taught dentists to use the device for those ailments — contradicting video footage of him telling dentists how to use it. Related Articles This Dental Device Was Sold to Fix Patients’ Jaws. Lawsuits Claim It Wrecked Their Teeth.Mar 1, 2023Watch: Dental Device at Center of Lawsuits Was Used on Patients Without FDA ReviewMar 2, 2023Feds Launch Criminal Investigation Into ‘AGGA’ Dental Device and Its InventorApr 12, 2023Steve Galella, the inve…