A fair warning:
If you get an interview at the Vegas GPR, know your stuff before you show up. This includes knowing the phases of amalgam as well as every element used in amalgam, the positives and negatives of posterior amalgam vs. composite, Arcon vs. non-arcon articulators, empirical vs. case based dentistry, and much more. These were questions they asked at the interview, seriously. No "what do you do for fun?" or "what is your favorite aspect of dentistry" gimme questions. And it's a group interview (three docs interview you in a darkly lit room). I'm sure you'll learn a ton while you're there, but the attendings seem slightly elitist and a bit hardcore.