Dental schools are not ranked. All of them are of pretty decent quality. You should choose your schools based on how much you are willing to pay, where you are located and how much you like those schools after interviewing there (aka do you like the students there, etc).
Gatorfan
P.S.- By the way, you really should improve your stats: 23 AA and a 3.7 GPA is not going to cut it. <<< JK! Those are great stats! If they are true, you will get interviews anywhere you apply.