The TMJ controversy continues to go on. It is evidence as to the great lack of understanding amongst dentists as to what causes TMJ.
A recent article in the California Dental Association Journal: The Great TMJ Controversy ( cda journal august 2014; p519-572) is very well edited and educational. I would particularly point readers to the two articles by Clifford Simmons and Prabu Raman as being reasonably correct.
The TMJ controversy continues and is not likely to subside for some time with such lack of training for dentists in dental school about dental orthopedics. Most dentists still know only about occlusion, and are given no training in how to assess jaw alignment. Jaw alignment has to do with an expansive model that incorporates muscle information (i.e. the muscles which posture the jaw have a very precise place in space that they want the jaw to be).
The TMJ controversy continues because most dentists don’t know the above facts. And not knowing those facts causes the treatment of TMJ to be very muddled, imprecise, and often inadequate.