Hi
I'm wrapping-up my first year. A couple things: First, don't worry about the DAT so much! If it matters, I received a 21 on Bio. and didn't study one thing on Tax. bottom-line is----if you don't know the normal important info, then the 3 question on Tax. will kill you! But, YOU WILL BE FINE!!!!!!!! Study what is obvious and you will do ok. DON'T skip over the Tax/zoology section in studying, but don't make it your main issue.
I feel if you are competitive (3.4+ gpa), well-rounded, with good DAT scores 19/19+ you'll be alright. 85% of the dental schools would love to have you. The other 15% want more. In the West; UCLA, UCSF, ect..---the East; Columbia, Harvard, UNC, ect..----the midwest; Iowa, Michigan, ect...----their avg gpa is 3.5+ and most want someone with research experience.
Personally, find an economic school that is close to your support system and apply. Specialties or research can be done at nearly every school provided you are in the top 20% of your class. If you need me to explain the above statement please ask.
Good Luck,
RRB