Hello Rosie,
All of my adult life dentists have told me that I grind my teeth...I always contested the idea because like you no-one I had ever shared a bed or a room with had ever mentioned it NOR did I have any of the symptoms,headache, sore jaw or stiff neck on waking.
I always thought it due to the odd sliding motion I have when I chew. I have asked for the dentist to "wire me up" with electrodes placed on my jaw to record the chewing action....and get a print out but have had no success.....
I might add that no dentist has ever acknowledged that my view could be correct.
In the old days bruxism in children was put down to internal parasites ...
If you wanted to get some treatment I would recommend to start with the physical body and make sure that all the bones of your head and neck sre in the right place Bowen therapy first off (works on muscles and tendons and is not invasive or painful)
Next I would suggest a brand of chiropractic that's called Cranio -Sacral balancing...they can adjust the cranial bones again non invasive and not painful.
Alays ask around to see who has a good reputation and when you ring speak to the practitioner and ask a few questions...
Do they think the treatment will help...have they treated this before.. how many treatments do they think it will take? etc.
Shop around.
Trouble here is that if you are unaware of the grinding and your dentist has a particular view and the only treatment he has in his repetoire is to sell you an expensive mouth splint how are you going to assess if the treatments have been successful?
Finally I would strongly suggest an amazing technique called EFT. It may take a huge philosophical leap for you but it will be very much worth it. The Founding web site is called emofree.com...and if you do an internal search of the site I am sure you will come up with case histories of others who have used EFT for teeth grinding...then you can either see a practitioner and there are many or you can learn the technique your self for free.
Dont be put off because the thing seems so fantastical.It just involves tapping a sequence of acpuncture points while you talk about the problem you want to fix.
I have used each of the therapies I have mentioned with success for a years .. the EFT will do it on its own but it is always good to give the body a "service".
Hannah