Ask any dentists you know for unwanted copies of dental journals, and they should have TONS....J.A.D.A. (Journal of the American Dental Association), your regional one, etc. etc. (JADA is a good place to start). Also, do searches for scholarly articles on databases...if you still have access to your undergrad's library web site, they should hook you up with medical databases like PubMed. Then you can just type in anything and it will usually give you free copies (or at least abstracts) from articles in thousands of different journals! There are tons of resources out there.
And of course, yay for google 🙂