Dried dates, as sold in plastic wrapping in stores, is usually treated with preservatives to keep them from going bad. They are frequently dried at a temperature that would lead them to no longer be raw.
If you know they're raw, and have not been treated with sulfur dioxide or the like, then a nice way to reduce the damage they can have upon your teeth is soaking them in water overnight, and then blending them. You can vary the concentration of the date-blend to suit your needs and preference. I enjoy a thick date sauce, with leafy greens or cucumbers to go along with it.
Dr. Graham talks about sports drinks like that made from dates in his book, Nutrition and Athletic Performance
. You may want to read it.