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Letters of Rec7 min read·Updated April 15, 2026

Letters of Recommendation for Dental School: AADSAS Requirements and Strategy

AADSAS accepts up to 4 letters. Here is the strategic mix dental schools expect — and how a dentist letter differs from a physician letter on a medical school application.

ByElias Woodbury·
Key Takeaways
  • AADSAS accepts up to 4 letters of evaluation (LOEs). Most dental schools want 3–4: typically 2 science faculty + 1 dentist + 1 other.
  • A letter from a dentist you shadowed is essentially required — adcoms expect at least one writer who can speak to your understanding of dentistry as a career.
  • Many dental schools also accept a pre-health committee letter as one of the 4 slots.

AADSAS Letter Requirements

AADSAS accepts up to 4 letters of evaluation (LOEs). Each dental school sets its own minimums and preferences — typically 2–3 required. Most dental schools want:

  • 2 science faculty letters
  • 1 letter from a dentist you shadowed or worked with
  • Optional: 1 additional letter (research PI, supervisor, or non-science faculty)

A pre-health committee letter counts as one of your 4 AADSAS slots and is typically accepted in lieu of multiple individual letters.

The Dentist Letter Is Essential

Dental schools strongly prefer to see a letter from a practicing dentist who can speak to your understanding of the profession. This is one of the clearest differences from medical school applications, where a clinical letter is encouraged but not strictly required.

The strongest dentist letters come from a dentist you shadowed for 50+ hours over multiple weeks or months — long enough that they observed your professionalism, attention to detail, and growth across visits. A letter from a single afternoon of shadowing is weak.

If you have shadowed multiple dentists, ask the one with the strongest relationship — not the most prestigious. Adcoms want substance, not status.

Science Faculty Letters

Most dental schools require 2 letters from science faculty, regardless of how strong your DAT score is. Adcoms want faculty validation that you can handle the science of dental school.

Ideal science writers:

  • Professors in upper-division biology, chemistry, or biochemistry
  • Faculty who supervised you in lab or research
  • Professors who taught you in more than one course or section

The 4th Letter Slot

Use your 4th letter strategically. Good options include:

  • A second dentist letter (especially if you shadowed a specialist meaningfully)
  • A research PI if you did substantial dental or biomedical research
  • A non-science professor who can speak to communication, leadership, or other dimensions adcoms care about
  • A supervisor from a long-term job or service position (especially healthcare-adjacent)

Avoid adding a 4th letter just to fill the slot — a redundant letter weakens the overall packet. Three strong letters beat four uneven ones.

Frequently Asked Questions

AADSAS accepts up to 4 letters of evaluation, including a committee letter that consolidates multiple individual letters into one slot. Each dental school sets its own minimums — most require 2–3.

Yes, in practice. Most dental schools strongly prefer at least one letter from a dentist who can speak to your understanding of dentistry. Without it, adcoms may question whether you have meaningfully explored the profession.

Yes. AADSAS accepts committee letters and most dental schools accept them in place of individual letters. The committee letter is uploaded as one evaluation in the AADSAS system.

Yes. Most dental schools still require 2 science faculty letters regardless of DAT score. Adcoms want to see that faculty in your science prerequisites can speak to your readiness for dental school coursework.

AADSAS opens in mid-May. Ask writers in February or March to give them 8–10 weeks of lead time. Letters must be submitted before your application can be marked complete by individual schools.

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About the Author

Elias Woodbury
Elias Woodbury

Co-Founder · Dental School Applicant

B.S. BiochemistryAADSAS Applicant 2026Co-Founder, White Coat World

Elias went through the AADSAS process in 2026 and built White Coat World to give every pre-health student the guidance he had to piece together himself. He writes about the tactical side of applications: hours, GPA, and what schools actually care about.

Educational Disclaimer: White Coat World provides educational resources for pre-health students. Admissions requirements vary by institution and change each cycle. Always verify shadowing hour requirements, GPA cutoffs, and application deadlines directly with your target schools. This content is not licensed advising.