IME, yes. I tend to tap my teeth. Focusing on my tongue--pushing against my palette, keeping my teeth separated--helps.
Seemingly coincidental remedy, too. I don't remember reading anything about the proper resting position of the jaw. I just found that the one the helped the other. In fact, I was worried doing this with my tongue was a no-no, but figured it was better than the alternative.
I was taught the tongue-palate trick years ago as a relaxation technique. It's basically impossible for your facial muscles to be contracted while doing it, helping an overall relaxation.
