Hi X-linked,
I only took the Canadian DAT since the majority of schools in the US do accept it. As for GPA, AADSAS calculates it differently compared to Canada. I had a 3.43 overall, and about 3.3 science. All courses, including summer, are counted. What made the difference for me was the interview, as well as dental related experience. It also helps to have an amazing essay that will tell them who you are as creatively as possible.
I'm an honors biology major at the University of Western Ontario actually finishing up my last year. I have an interview for western dental, but it's very limited...which is why I applied to the US.
The best advice I can give you is to give it all you got. I honestly didn't think I had a chance since one of my undergrad years suffered because of personal reasons. But I pulled up my GPA in third year, and I was determined to show them that I had what it takes. Out of 6 interviews, I received 3 acceptances, and I took UPitt because I felt so at home and welcomed there.
So good luck, and I'll be looking out for any other questions that you might have... 🙂
Hot-n-Aml
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University of Pittsburgh, SDM, Class of 2007