Starr,
I wear an appliance (splint) that covers all of my bottom teeth. I am a substitute teacher with a slight speech impairment, so I don't wear the appliance 24/7, but I do wear it as much as possible. If I begin to get a headache and notice right away, if I put the splint in, it sometimes gets rid of it or at least keeps my headache from getting any worse. Right now, my opening is really really good. Don't know what it is, but the doctor and assistant have been pleased. It is better than it was in August and it doesn't hurt anymore to yawn.

My jaw has also stopped popping constantly. Tonight, I have a fairly bad headache and am going to bed soon. Have a good night.
Lynn