Ive also read that jaw expansion via ALF causes facial changes in adults. All these publishings are based on case studies via novel techniques, which many orthos and dentists have seen to work. it often takes time for novel techniques to catch on to the main stream. However, even the results i have seen, are fairly minor, and almost unnoticeable. if your goal is to fix your teeth, the ortho rout will usually work unless you have a skeletal deficiency.