Why is It So Difficult to Get my Bite Right?

When teeth are prepared for a bridge the original bite no longer exists, especially if the last teeth on the side are prepped.  This can be avoided by never the patient close completely  after the teeth are prepped.  Closing with no posterior support can cause a change in the TM Joint and the position of the disc in the joint.

It is also possible that there were bite problems on both sides that cancelled each other out.  When one side is corrected the other side which was always wrong no longer has counter balance.

Neuromuscular Dentistry will allow you to measure objectively how the joints, muscles and teeth work in your mouth.  You may want to conside wearing an orthotic to stabilize the bite before proceding.

Sorry to hear you're going thru this process.  Sounds like you and your dentist may be pretty frustrated by now after six fittings.  

Normally, I recommend you work with your dentist to get it right.  But, in this case, you may wish to find another dentist with a solid understanding of occlusion principles (dentists who have attended advanced institutions such as Pankey Institute, Spears Institute, or the Dawson Academy are usually an excellent choice.)  
 

I would need to acutally see you to evaluate your bite. There are too many variables with your case to be able to answer you questions.

Dr. T