Can ambien (zolpidem) 10mg cause teeth and jaw clenching? I've been on it for about a week and have had really sore jaw. Cold turkey off trazodone 150 for a month so I don't know if I am suffering from trazodone withdrawals or it's the ambien (zolpidem)?

Possibly. Pretty much any medicine can cause bruxism -- tooth grinding, although this medicine certainly doesn't do so commonly. Discuss this with you prescriber.
Rare but possible. Talk to prescribing doctor re stopping Ambien (zolpidem). Tooth grinding/jaw clenching should disappear if from this med. If this persists, see your doctor or dentist. See: http://www.mayoclinic.org/diseases-conditions/bruxism/basics/definition/con-20029395.