Here's an interesting editorial by Dr. Hupp, Dean of ECU SODM, about the factors that decide whether or not one gets an interview. It's not all about a numbers game.
http://www.ecu.edu/cs-dhs/dentistry...es-select-our-future-dental-professionals.pdf
http://www.ecu.edu/cs-dhs/dentistry...es-select-our-future-dental-professionals.pdf