Dental School Letters of Recommendation: Who to Ask, How to Ask, and What Makes a Letter Actually Strong

Why Letters of Recommendation Matter More Than Students Think

Most pre-dental students treat letters of recommendation as an afterthought — something to collect in the final weeks before submitting their application. They email a professor they barely spoke to, attach a generic request, and hope for the best.

That approach produces generic letters. And generic letters do not help you.

Here is the truth about letters of recommendation in dental school admissions: a truly exceptional letter can be the deciding factor between an acceptance and a waitlist at a school where your GPA and DAT are borderline. Conversely, a weak or generic letter — even from a prestigious recommender — can undercut a strong application by signaling that no one who knows you well has anything compelling to say.

Admissions committees read hundreds of letters. They can tell within the first paragraph whether a recommender knows the applicant personally or is writing from a template. They notice when a letter is specific, vivid, and enthusiastic — and they notice when it is not.

This guide tells you exactly how to get letters that help your application rather than simply filling the requirement.

How Many Letters of Recommendation Does Dental School Require?

Most dental schools require 3 letters of recommendation, submitted through the AADSAS letter service. Some schools specify the exact types they want; others leave the composition to you.

A typical required combination looks like this:

Always check the specific requirements for every school on your list. Some programs require a dentist letter. Some require two science professors. Some accept a committee letter that packages multiple letters together. These details matter — submitting the wrong combination is a preventable mistake.

Can you submit more than the required number?

Yes — AADSAS allows you to submit up to six letters, and you can assign different letter combinations to different schools. If a school requires three letters and you have four strong ones, submit all four to that school. More strong letters reinforce the same themes and give adcoms more evidence from different perspectives.

If you only have three letters and one of them is mediocre, do not submit four just to reach a higher number. Three excellent letters beat four where one is clearly weaker.

Who Should Write Your Letters of Recommendation?

This is the most important decision in the entire letters process — and it is where most students go wrong.

The core principle: ask people who know you well enough to write something specific and genuine, not people whose title sounds impressive.

A generic letter from a Nobel laureate who taught your class of 300 students is weaker than a specific letter from a community college professor who mentored you individually through undergraduate research. Title impresses no one. Specificity does.

Science Professor

This is typically your strongest letter and the one most schools prioritize. Choose a professor who:

• Taught you in a class where you actively participated, visited office hours, or did particularly strong work
• Can speak to your intellectual capability, analytical thinking, and academic trajectory
• Remembers you well enough to mention specific conversations, assignments, or moments

Ideal candidates: professors in Biology, Biochemistry, Anatomy, Physiology, General Chemistry, or Organic Chemistry — the sciences directly related to dental school coursework.

Who to avoid: Professors from large lecture courses where you received a good grade but had no real interaction. A letter that says "Student X earned an A in my course" is useless. Every applicant with an A could get that letter. Yours needs to say something only that professor can say about you specifically.

Non-Science Professor or Advisor

This letter demonstrates intellectual breadth, communication skills, and qualities outside the lab. Choose someone who has seen you write, speak, or engage with material in a humanities or social science setting.

Psychology, English composition, sociology, history, public health — any course where your thinking, writing, or engagement stood out. This letter often carries stories that science professors can't tell: how you communicated complex ideas, how you engaged with ethical questions, how you showed leadership in discussion.

Dentist (Supervising Clinician)

This is the letter that carries the most weight for evaluating your professional readiness. A dentist who supervised your shadowing has seen you in a clinical environment — which is the closest thing adcoms have to a preview of how you'll behave as a dental student and future clinician.

Choose a dentist with whom you spent the most hours, had meaningful conversations about the profession, and who witnessed something specific about your character, curiosity, or work ethic in a clinical setting.

If you shadowed multiple dentists, choose the one who knows you best — not the one with the most impressive title or the largest practice.

Critical: Ask your supervising dentist while you are still actively shadowing, not three months after your last visit. The experience is fresher, the relationship is active, and the letter will be more specific as a result.

Research Supervisor or PI

If you have undergraduate research experience, a letter from your principal investigator or direct research supervisor is highly valuable — particularly at research-intensive programs. This letter can speak to qualities adcoms rarely see elsewhere: how you handle uncertainty, how you respond to failure, how you think independently in an unstructured environment.

Even if your research was not dental or biology related, a letter from a supervisor who can speak to your intellectual rigor and work ethic is a strong addition.

Employer or Clinical Supervisor

If you worked as a dental assistant, medical assistant, EMT, scribe, or in any clinical role, a letter from your direct supervisor in that position can be extraordinarily powerful. It combines professional credibility with firsthand clinical observation — exactly what adcoms want.

Pre-Health Committee Letter

Some schools have a pre-health or pre-dental advisory committee that compiles a composite letter on behalf of the applicant. If your school offers this, use it. A committee letter signals that your institution formally endorses your readiness — and it packages multiple faculty perspectives into a single, often more credible document.

Not all schools offer committee letters. If yours does not, individual letters are equally valid.

When to Ask — and Why Most Students Wait Too Long

The most common logistical mistake: asking for letters too late.

Strong recommenders are busy. Professors are managing coursework, research, and advising responsibilities. Dentists are running busy clinical schedules. Asking in May for a June submission deadline is setting your recommender up to write under pressure — and pressure-written letters show.

The right timeline:

For most applicants targeting a June AADSAS submission, this means making your formal ask no later than January or February of that year. Earlier is always better.

How to Ask for a Letter of Recommendation

The ask itself — how you approach your recommender — shapes the quality of the letter they write. A thoughtful, professional request produces a thoughtful, professional letter. A rushed email at the last minute produces a rushed letter.

Ask in Person First

Whenever possible, ask in person — during office hours, after class, or at the end of a shadowing session. A face-to-face ask is more memorable, more personal, and signals that you take the request seriously.

The script is simple: "I'm applying to dental school this cycle, and I've really valued what I've learned from you. Would you be willing to write me a strong letter of recommendation? I'd make sure to give you everything you need well in advance."

Notice the phrase strong letter. This is intentional. You're not just asking for a letter — you're asking for a strong one. This gives your recommender a natural off-ramp if they don't feel they know you well enough to write one: they'll tell you, which saves both of you from a mediocre letter.

If they hesitate, take that hesitation seriously. A lukewarm letter is worse than three excellent ones.

Follow Up With a Written Confirmation

After the in-person conversation, send an email within 24 hours that confirms the request, thanks them, and lets them know your materials are coming. Keep it brief and professional.

What to Send Your Recommenders

This is the most overlooked part of the entire process — and the most high-leverage thing you can do to improve your letter quality.

Your recommenders are experts in their field. They are not experts in dental school admissions. Give them the raw material to write something excellent.

Your recommender packet should include:

1. Your Current CV or Resume

Let them see the full picture of your activities, experiences, and accomplishments. A professor who only knew you from class may not know about your research, your shadowing, or your community service. These details often make it into strong letters.

2. A Personal Statement Draft

Share your working personal statement or a clear summary of your narrative. This helps recommenders align their letter with your overall application story — reinforcing themes rather than introducing contradictions.

3. A "Brag Sheet" — Specific to Your Relationship With Them

This is the most important document you'll create. For each recommender, write a one-to-two page document that includes:

• Specific courses, projects, or experiences you shared with them
• Moments you remember that you'd want them to mention (a specific experiment that went wrong and how you handled it, a paper you're proud of, a clinical observation that changed how you think)
• Qualities you'd like the letter to address — curiosity, resilience, communication, dexterity, empathy, leadership
• Your specific goals for dental school and your career

You are not writing their letter for them. You are giving them the raw material to write something specific and genuine. The difference between a generic letter and a compelling one is often just this: one recommender received the brag sheet, and one did not.

4. AADSAS Submission Instructions

Include clear instructions for how to submit the letter through AADSAS or Interfolio. Make it as frictionless as possible for them. Include your AADSAS ID if relevant, the schools the letter will be sent to, and any school-specific requirements.

5. Your Deadline — With Buffer

Give them your deadline as at least 2–3 weeks earlier than your actual submission deadline. Build in a buffer for unexpected delays.

What Makes a Letter Strong vs. Weak

After reviewing hundreds of dental school applications, here is what the strongest letters have in common — and what consistently appears in weak ones.

Strong Letters:

• Open with a specific statement of the relationship. "I have known [Student] for two years as a student in my Biochemistry course and a research assistant in my lab" tells the reader immediately that this recommender knows the applicant.
• Use specific stories and examples. "When the PCR assay failed three times in succession, [Student] did not become frustrated — she went back to the protocol, identified the likely error source, and came to me with a hypothesis before I had even noticed the problem." This is a story that reveals character.
• Address qualities directly relevant to dental school. Manual dexterity, attention to detail, patient communication, academic resilience, intellectual curiosity — the best letters connect the applicant's demonstrated qualities to the demands of the profession.
• Include a clear, unambiguous endorsement. "I recommend [Student] without reservation and believe she will be an exceptional dentist and a strong contributor to your program." No hedging, no softening.

Weak Letters:

• Generic language that could apply to any student: "Hard-working, dedicated, and passionate about dentistry."
• Absence of specific stories or examples
• Short length (less than one full page) — usually signals the recommender had little to say
• Qualified or hedged endorsements: "I believe [Student] would do well in dental school" — the word "believe" introduces doubt
• Letters that spend more time describing what the recommender does than what the applicant did

How to Handle Difficult Situations

What if a Professor Barely Knows You?

This is the most common problem. If you're in your final semester and realize your only science professor contacts are from large lecture courses, your options are:

1. 1Reach out now, revisit office hours, and build a relationship before asking. Even a few substantive conversations can improve a letter meaningfully.
2. 2Choose a TA or lab instructor from a course where they knew you better — check if the school accepts letters from non-faculty instructors.
3. 3Use your pre-health advisor or committee if available.

What if a Recommender Misses the Deadline?

Send a polite reminder 3–4 weeks before the deadline, another one 2 weeks out, and a final one 1 week out. If they miss it despite reminders, reach out to your backup recommender immediately. Always have one identified in advance.

What if You Received a Bad Grade in a Recommender's Course?

A strong letter from a professor in whose course you earned a B can still be valuable if the letter speaks to qualities the grade didn't capture — improvement, effort, intellectual engagement. Some adcoms respond positively to seeing a recommender acknowledge a setback while speaking highly of the student's character and trajectory.

Your Letters of Recommendation Checklist

Use this before your application is submitted:

• Identified 3–4 recommenders who know me personally and can write specifically about me
• Asked each recommender in person for a strong letter
• Sent each recommender my CV, personal statement draft, brag sheet, and submission instructions
• Confirmed each recommender has accepted and knows the deadline (with buffer)
• Set calendar reminders for follow-up at 4 weeks, 2 weeks, and 1 week before deadline
• Checked each school's specific letter requirements and assigned the right letters through AADSAS
• Thanked each recommender in writing after submission

Frequently Asked Questions

Can a family friend or family dentist write my letter?

It's not ideal. Adcoms are aware that letters from family connections may be less objective. A letter from a dentist who is a family friend is far weaker than one from a dentist who evaluated your performance as a serious shadowing student with no prior relationship. If it's your only option, use it — but prioritize building a non-family dental relationship for a second letter.

Should I waive my right to see the letter?

Yes. Almost universally. When you waive your right to view the letter, the recommender knows the letter is confidential — and adcoms know the recommender wrote freely without fear of the applicant reading it. A letter submitted without waiver is often viewed with skepticism. Waive your right on every letter.

What if a school requires a committee letter and my school doesn't offer one?

Contact the school's admissions office directly. Most programs have a protocol for students from institutions without a pre-health committee — typically allowing individual letters to substitute. Always verify directly rather than assuming.

How long should a letter of recommendation be?

One to two pages is standard. One strong, specific page is better than two generic pages. Quality over length.

Can I reuse letters from a previous application cycle?

AADSAS stores letters in your application from year to year. Letters submitted in a prior cycle can be reused in subsequent cycles — but check the date. A letter written 2–3 years ago may feel dated. If your relationship with a recommender allows, a fresh letter that acknowledges your growth since the previous application is significantly stronger.

Start Earlier Than You Think You Need To

The single most actionable advice in this entire guide: start building recommender relationships now, regardless of where you are in your pre-dental journey.

You cannot manufacture a meaningful relationship in the four weeks before your application is due. You can only draw on relationships that already exist.

Go to office hours. Engage with your shadowing dentist beyond just observing procedures. Ask your research supervisor for feedback on your thinking, not just your technique. Treat the people who will eventually write your letters as mentors — because they are.

If you want a personalized review of your planned recommender list and how to frame your requests for maximum impact, schedule a free call with our team. We've helped hundreds of applicants secure letters that turned borderline applications into acceptances.