Dental Admission Test (DAT)
http://www.ada.org/prof/ed/testing/dat/index.asp
The Dental Admission Test (DAT) is a multiple-choice standardized exam taken by potential dental school students in the United States. The DAT is a computer based test that can be administered almost any day of the year. Tests are taken at Thomson Prometric testing centers throughout the United States after the preliminary application through the American Dental Association is completed. Each applicant may only take the test a total of three times before having to ask special permission to take the exam again. After taking the exam you must wait 90 days before repeating it. Each exam costs $190.