I never used them, but my school recommends "Oral Radiology Principles and Interpretations " for radiology and "Dental Anatomy, Physiology, and Occlusion" for tooth morph. Good luck!
I found the best way to get to know tooth morphology was to study models. I could never remember which line angles were longer or where the heights of contour were just by reading about it in the textbook. I think I really only got to know it well when we had to sort extracted teeth for endo practice in second year. Once you work hands-on with the teeth for awhile, dental anatomy should come much more naturally to you.
