The primary thing that comes to mind is a traumatic bite of the anterior teeth. What I mean by this basically is the anterior teeth hit first and harder than anywhere else. As you bite and chew they are always taking a beating. A good way to easily test for this is to bite...
Changing orthodontists in the midst of treatment is typically termed a "transfer" between practitioners. If the change is made strictly for location convenience, then the costs for travel and time must be outweighed by the costs involved in the transfer. If you are pleased...
You mentioned movement of teeth because retainers were not worn for a long period of time. You mentioned that you are having facial nerve issues POSSIBLY trigeminal nerve pain which is becuase of your bite. First of all I would find a dentist that specializes in neuromuscular dentistry if...