It depends on when you are planning on taking your boards. If you plan on taking them next December than I don't think it will matter much from what upper classman have said. I you plan on taking them after Dec, as in 2007, the board format is changing slightly and the new 2006-2007 dental decks have a new section called "clinical vignettes" to help familiarize students with the new clinical question format.
For those who don't know, they say that new format will contain 20% of clinical scenario questions.