I read your post. My situation is very similar to yours. I went to my ENT and he prescribed Xanax. 0.5mg twice a day but I only take it at bedtime cause it makes you sleepy. This is only a management tool. I do not intend to take these any longer than necessary. (It can cut down the tone volume by 46% as stated in a double blind study from the Tinnitus association.)
My tinnitus started after my dentist installed a 3 tooth bridge; tooth # 29, 30, 31 The bridge was a porcelain fused to metal type. Soon after that I developed a allergic reaction to the metal that was used, so I opted for a porcelain bridge. The dentist installed a pure porcelain bridge with out a core, no metal or zirconium, Why? To save him money. ! That means it is very fragile so in order to alleviate the pressure on the bridge he grinded the adjacent top upper molars. The bridge broke in six days . This was the start of my "bad bite". Because the teeth didn't mesh on that side every time I bit down the jaw would be forced back, putting pressure on the TMJ joints and giving me a high frequency Squeal in my ears!
I too didn't understand what was happening at first. Needless to say I have spoke with an attorney. I now have an appointment with a TMJ specialist (neuromuscular dentistry) on wed.
Try and find a TMJ specialist who understands this problem as I understand that malocclusion tinnitus is fixable and once treated should clear up the ringing. As I write this my ears are ringing! Adam