Do you find yourself squeezing your teeth together (clenching) when you
are concentrating or focusing on a task?.....or while sleeping? Clenching and grinding your teeth are not the cause of migraines, but if you are susceptible to migraines, this increased muscle and nerve activity caused by clenching can certainly trigger this pain. A small plastic splint can help this in many cases by reducing the intensity of muscle contractions. It is hard to explain this briefly, but here are a couple of websites that go into great detail
NTI-TSS.com - The most effective FDA-approved method of migraine prevention - Home
This first one is more geared towards dentists and doctors.
HeadAchePrevention.com - Home
This one is written more for the general population or patients.
I'll try a simple explanation. When you clench your teeth, you contract jaw muscles that attach in your temple area. You can feel them bunch up when you do this. This can cause tension headaches, or trigger a migraine if you are susceptible to them, and you do this enough times. If you slide your teeth forward where only your front teeth touch, and then clench, you can get pain in the back of the head where the muscles attach. A small plastic splint or mouthguard is designed so you can't get your back teeth together......without contact, you can't contract the muscles. You wear this usually at night, but migraineurs sometime wear this during the day as well.
Many folks have had traditional mouthguards made, to protect the teeth from grinding......but the way they are designed to even out teeth contact, just makes one a more efficient clencher......it lets you clench with more intensity.
Anyway, sorry for such a long post. Check out the websites if you are interested in this.....there is a lot of info there. One of the great benefits if the splint works for a particular person, is that one can really cut down on the amount of medication taken in the management of pain.
Paul