Attached find a PLOS blog on the workings of a Hadrosaur Dental Batteries. It's a bit technical but gives you a better view of a pretty complex operation of over 300 teeth in a jaw.
http://blogs.plos.org/paleocomm/2016/09/14/all-the-better-to-chew-you-with-my-dear/
Here is the paper
article.pdf