sadaf
don't waste your time with kaplan. go straight to dental decks and released examinations.
I used a whole bunch of material, which at the end weren't that helpful. I regret spending my money on kaplan book. but, if you can get a hold on copies of kaplan examinations, it's even better.
kaplan exams are short tests (30 questions), which in the back have the answer key and they explain to you the reason why each answer is correct. Kind of like dental decks. They are really helpful.
If knew then what I know now, I wouldn't have bother with kaplan and other review books and textbooks.
If you learn your dental decks (the newest edition as possible) really good and then review the past examinations to learn how to take the test (which is the single most useful tip ever) that's enough for doing good on the test.
Read the decks at least 3 times and review exams several times, if you payed attention during dental school classes, that should be enough.
Remember, the most important thing, is get the method of examination. learn the tricks of the test.
about the NDBE part 1 format change, there was a thread going on on the Dental forum about that, you may want to read that.
hope this helps.