From the WSJ:
Google said Wednesday that it stopped scanning student Gmail accounts for advertising purposes after the practice was scrutinized during a recent court case…
Bram Bout, director of Google for Education, said the company will no longer scan Gmail in Apps for Education, and won’t collect or use student data from Apps for Education for advertising purposes.
Google is making similar changes to its Apps services for businesses and government users, Bout said.
This is a good thing but it still does not make Gmail secure enough for dental offices. If you send health information to another office it must be either encrypted or uploaded to a secure server.