I know that aside from being related to ads, that teeth grinding and clenching is also a side effect of being on the benzos and being in withdrawal as well...my jaw has been so tight at times, that is clatters - like, it vibrates uncontrollably. i have a custom made (read-expensive!) night guard that i'm having problems with. it's causing me pain and not fitting properly and i'm going in to the dentist today to have yet another adjustment made. talk about anxiety provoking. meanwhile, i did enormous damage to my teeth, they are all worn down and flat in the back, from the years i was on ativan. i was CONSTANTLY clenching my teeth when i was on the drug. also during my valium taper, as well. and now with the jaw tightness i'm having, it's really stressing me out big time.
[...], what you're experiencing sounds totally normal for benzo w/d.