Crowns installed summer 2010. Deployed to Iraq after with mild tooth pain. Crown developed hole in top and I had much acute pain while in Iraq. Returned and dentist didn't know what happened. Changed dentists. Sent for root canals Feb 2014. Now have chronic paIn in tooth and jaw. Dental follow up to check cause showed nothing on X-ray. Endodontist re-check showed no issues. Back to dentist. Crown bite adjusted. Dentist has no clue why still pain. And no, I don't clench. Hurts all day. Where now?