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About this exam

The Dental Admission Test (DAT) is the standardized exam that all U.S. dental schools require applicants to take as a component of their admission process, and it is also accepted by select dental schools in Canada. Programs use it to assess an applicant's potential for success in dental education, and each school decides for itself how much weight to give the results. The test is delivered in English as multiple-choice items across four sections: Survey of the Natural Sciences (100 items), Perceptual Ability (90 items), Reading Comprehension (50 items), and Quantitative Reasoning (40 items). Total administration time is five hours and 15 minutes. The DAT is offered year round at Prometric test centers in the U.S., its territories, and select locations in Canada, though it is no longer offered in Quebec. Most candidates sit for the exam in the spring of their junior year or the summer immediately after, and the ADA advises applying six to eight weeks before a desired test date. Because the exam samples broad science content, most preparation combines coursework - especially organic chemistry - with timed practice, including the official online tutorial and practice tests. Candidates should confirm current scoring, fees, and requirements in the DAT Candidate Guide before registering.

What you'll study

Common questions

About DAT PAT preparation

Who needs to take the DAT, and when should I take it?

All U.S. and Canadian dental schools require applicants to take the DAT as part of admission. The ADA suggests taking it after you have covered the tested subjects, especially organic chemistry - typically the spring of your junior year or the summer right after.

How is the DAT structured?

It is a battery of four multiple-choice tests delivered in English: Survey of the Natural Sciences (100 items), Perceptual Ability (90 items), Reading Comprehension (50 items), and Quantitative Reasoning (40 items). Total administration time is five hours and 15 minutes.

How hard is the DAT, and what trips candidates up?

The exam is broad rather than trick-based, so the usual failure mode is sitting it before finishing the relevant coursework - organic chemistry especially. Others underestimate pacing across a five-hour-and-15-minute administration. Build timed practice into your schedule and do not book a date before your science background is in place.

How many times can I retake the DAT?

You must wait 60 days between attempts, with a maximum of four administrations in any 12-month period. After three or more attempts you must apply for permission to test again and provide proof of a recent dental school application. After your fifth attempt, you may retest only once per 12-month period. The retest policy is not subject to appeal.

Where can I take the test, and how far ahead should I book?

The DAT is offered year round at Prometric test centers in the U.S., its territories, and select locations in Canada, but it is no longer offered in Quebec. After your eligibility letter arrives, contact Prometric directly - the local center cannot schedule for you - and book 60 to 90 days ahead, since schedules fill up.

What does the DAT cost, and are fee waivers available?

The fee is set out in the current DAT Candidate Guide, so check that document rather than relying on secondhand figures. Partial fee waivers covering 50% of the fee are granted first-come, first-served to eligible first-time examinees with demonstrated financial hardship; all 2026 waivers have been granted, and new ones open January 1, 2027.

How should I sequence my studying?

Finish organic chemistry and the other natural science prerequisites first, since the Survey of the Natural Sciences is the largest section. Then add regular timed practice for Perceptual Ability and Quantitative Reasoning, which reward repetition and speed rather than memorization. Use the official online tutorial so test-day navigation is familiar before you sit.

Can I reschedule or cancel my appointment?

Yes, but you must contact the administration vendor in advance - the local test center cannot reschedule or cancel for you. Appointments must be changed by the business day before the test, at least 24 hours ahead, and additional fees apply. Keep the confirmation email you receive.

Is the scoring system changing?

Yes. Beginning March 1, 2025, the ADA implements a new scoring system for the DAT. The ADA publishes a DAT Scoring Update and a guide to understanding the new score reporting scale, so review both before interpreting your score report.

How do I contact the ADA with questions?

Reach the Department of Testing Services at 1.800.232.1694 or [email protected]. For scheduling emergencies, email [email protected] or call 800.232.1694. Privacy questions about your personal information are covered in the DAT Program Use of Personal Information and Privacy Policy.