I've used a CPAP (terrible), a TAP positioner (OK), and now I've got a Narval (great). But I'm having a problem with scraping of teeth, as on a blackboard, when I eat. My specialist has smoothed out a couple of spots on my teeth, and I've made adjustments gradually on the Narval from 28 1/2 mm to 31 mm and back. But I'm still making noise that drives my wife crazy. What could be the cause? And what might be the solution? Thanks, Griot
