See TMD, a cause of teeth-grinding, headaches, earache, and neck soreness, corrected in eighteen minutes (or so) with Hanna Somatic Education, a brain-mind-body training process. See BEFORE and AFTER comparison images and the process that got the subject of this video there.

somatics.com - home page
somatics.com/page7.htm - access to instruction, practitioners
somatics.com/emergency_back_care.htm - procedure for back pain