I think schools will definitely consider it, though it won't be as great an influence as DAT or GPA on your chances at admission.
Going to tough school doesn't mean the material is harder, a tough school is where all the students are keeners. yes 1+1=2, you'll be taught that at a CC or a state school or at ha
rvard. But at CC, you'll see 1+1=? on the test, whereas, at harvard, you'll be challenged because you are expected to master the material, so instead of asking you directly on what you are taught, you'll probably see something like 2-1=?
Also, no school will allow a whole class of As, even at the easiest schools, someone has to get a lower grade. So at a CC, it might be easy to stand out and get that A, however at harvard, you might pull all-nighters everday and still average a B.
In the end the materials are the same, but students from tough schools are stronger because they mastered the material. And even when their gpas are lower, it doesn't mean they are dumber.
After the GPA and DAT filter, i am sure dental schools look at where you are from
(That's right, my 2.85 from cornell means a 4.0 at some stupid state school mwahaha!) <------that was a joke