Hi, I have had extremely sensitive teeth for about as long as I've had back spasms, which is 6 years. Dentist cannot find any reason for it. Enamel on teeth is fine, gums aren't recessed, etc. No topical sensitivity treatments helped. I am wondering if anyone knows if this could be a TMS disorder? I am not referring to TMJ here, just extreme teeth sensitivity (zinging sensation when biting into hard things like crackers, crusty bread, some other foods that are crunchy). Just a shot in the dark but nonetheless I figured it's worth asking about. Thanks