We really don't know.
Traditions die pretty hard.
Many schools have long term purchasing agreements with the large dental corporations and we're pretty small as dental manufacturers go.
For several years I (Dr. Jack Jacklich) taught at Loyola Dental School and University of Illinois, in Chicago and pretty much wrote off the dental schools as hopelessly mired in the past when I left them in 1974. I'm more than happy to share my knowlege with anyone who asks. All the schools have to do is ask.