The Wrong Benchmark
Most pre-dental students, when they hear "the average DAT score is 17," immediately aim for 17. That is a mistake. The average score includes applicants who did not get in. If you want to matriculate — not just apply — you need to understand what admitted students actually score.
The national average for matriculants is closer to 20. At competitive schools, 22 or higher is the norm. That gap between "applicant average" and "admitted average" is where applicants go wrong every cycle.
The Scale, and What It Means
The DAT runs from 1 to 30. Unlike the LSAT or MCAT, which report percentiles on a continuous scale, the DAT uses standard scores derived from raw performance. The important thing to understand is that the scale is not linear in its difficulty — the difference between a 20 and a 22 represents a much smaller raw score improvement than the difference between a 17 and a 19.
Here is how scores map to the applicant pool:
- 23–30 — Top tier. Competitive at the most selective dental schools in the country.
- 21–22 — Strong. Competitive at most accredited programmes; scholarship territory at many.
- 19–20 — Solid. Competitive at state schools and regional programmes, especially with a strong science GPA.
- 17–18 — Average. Matches or slightly exceeds the national applicant mean but falls below most matriculant averages.
- Below 17 — Below average. Meaningful obstacle at nearly every US dental school.
These are ranges, not verdicts. A 19 with a 3.8 science GPA is a different application than a 19 with a 3.2. The DAT is the loudest number in your file. It is not the only one.
The Sections That Matter Most
The DAT has six scored sections, but not all carry equal weight in admissions. Understanding the breakdown matters for both your study strategy and your score interpretation.
- Biology — The most content-heavy section. Covers cell biology, genetics, anatomy, physiology, and evolution. Rewarded by breadth of memorisation rather than deep conceptual understanding.
- General Chemistry — Stoichiometry, thermodynamics, equilibrium, acids and bases. More conceptual than biology; rewards understanding over rote recall.
- Organic Chemistry — Reactions, mechanisms, functional groups. The section students most frequently underestimate in scope.
- Perceptual Ability Test (PAT) — Unique to the DAT. Angle ranking, hole punching, cube counting, pattern folding, apertures, 3D form development. This is the section that most differentiates scores at competitive schools.
- Reading Comprehension — Three scientific passages with associated questions. Time pressure is the primary challenge.
- Quantitative Reasoning — Arithmetic, algebra, probability, data analysis. Generally the most straightforward section for students with solid maths foundations.
Schools typically report two composite scores: Academic Average (AA), which averages all six sections, and Total Science (TS), which averages Biology, General Chemistry, and Organic Chemistry. Both matter. The TS score is particularly scrutinised because it signals whether you can handle the scientific rigour of dental coursework.
The PAT Problem
Most applicants spend their study time on Biology and Chemistry because that is where their coursework prepared them. The PAT gets treated as an afterthought — something you will "figure out" in the final weeks.
This is precisely backwards. The PAT is the section where score improvements are most achievable with deliberate practice, and it is the section that most often pulls down an otherwise competitive AA. Students who struggle with spatial reasoning do not improve by reviewing organic chemistry one more time. They improve by practising PAT problems — specifically, by drilling each of the six subtypes until the patterns become automatic.
Budget at least 30% of your study time for the PAT. It will feel disproportionate. It is not.
See where your DAT score is actually competitive.
AdmitBase compares your GPA and DAT to admitted students at 67 US dental schools — so you know your real chances before you apply.
Get Started Free →Benchmarks by School Tier
Rather than chasing a single "good" number, align your target score to your target schools.
- Top-20 dental schools (Penn, Michigan, UCSF, UCLA, UNC, Columbia) — AA of 23+ is expected. Below 22 requires exceptional compensating factors.
- Competitive mid-tier schools — AA of 21–22 is solidly competitive. A strong science GPA and meaningful clinical hours can make a 20 work.
- State school programmes — In-state applicants with AAs of 19–20 and strong GPAs are regularly admitted. The in-state preference at public schools is substantial and should inform your benchmarking.
One practical approach: look up the 25th and 75th percentile AA scores for your target schools, as reported in their ADEA AADSAS data or published directly by the schools. If your score sits above a school's 75th percentile, you are a genuine safety. At the 50th percentile, you are a target. Below the 25th percentile, you are a reach — treat it as one.
Academic Average vs. Total Science
When admissions committees read your file, they look at both the AA and TS. A strong AA with a weak TS raises questions about your science preparation. A strong TS with a lower AA (pulled down by, say, a weak QR score) is generally less concerning.
If your TS is more than two points below your AA, it is worth noting — and worth addressing in context if your application allows for it. Some schools publish both percentiles; check the specific programmes you are targeting.
Retaking the DAT
The DAT has a 90-day waiting period between attempts. You may sit for the exam a maximum of three times, with a fourth attempt requiring written permission from the American Dental Association. These limits are strict, and the policy has tightened in recent years.
Because you have limited attempts, timing matters. Most applicants take the DAT in April or May of the year they plan to apply, submitting scores with their AADSAS application when it opens in June. A second attempt, if needed, must be planned carefully to avoid delaying your application into the autumn — by which point many schools have already extended a significant portion of their interview invitations.
A prepared retake typically gains two to four points. Do not retake without a structured study plan and consistent practice test improvement. Showing a declining score on a third attempt narrows your options considerably.
The Right Question
The most useful reframe is not "what is a good DAT score?" but "what score do I need for the schools I actually want to attend?" Pull the matriculant data for your target programmes. Calculate where your current score places you relative to their admitted class. Then decide whether the gap is worth the time investment of a retake, or whether your energy is better spent strengthening your GPA, clinical hours, or application narrative.
The DAT is a means to an end. The end is getting into the right dental school. Keep those in the correct order.
