Which Dental Specialty Is Hardest to Match Into?

Six dental specialty residencies run through the Postdoctoral Dental Matching Program's annual match: orthodontics (ORTHO), pediatric dentistry (PED), oral and maxillofacial surgery (OMS), periodontics (PERIO), prosthodontics (PROS), and dental anesthesiology (ANES).

Comparing them side by side using the program's own Results of the Matching Program for 2026–2027 Positions, orthodontics stands out on the one measure the data actually supports: it's the only one of the three specialties with a published five-year trend whose applicant pool grew every single year, while its position count barely kept pace.

That's the honest version of "hardest to match into" this source can answer.

A precise, ranked acceptance rate across all six isn't available — the Match's own totals rule one out, for reasons the "no ranked acceptance rate" section below covers in full.

What follows compares reported applicant counts, position counts, and five-year trends only, and flags the one recognized dental specialty this Match doesn't cover at all: endodontics.

For the pay side of this same comparison, see which dental specialty pays the most; for what each specialty actually treats, see the 12 dental specialties explained.

The Postdoctoral Dental Matching Program (National Matching Services, natmatch.com/dentres) publishes applicant, position, and match counts for every program type it runs each year.

Here is the 2026 Match for the six specialty programs, plus the Match's own overall total across every program type it tracks:

The overall row also includes general, non-specialty residency tracks in the same Match — general practice residency (GPR), AEGD, and GPR-CAN — which aren't part of this specialty-to-specialty comparison; they're advanced training in general dentistry, not a recognized specialty.

Read the six specialty rows for what they say directly: orthodontics and pediatric dentistry drew far more applicants than the other four, and dental anesthesiology is the smallest program on this list by every column.

Filled-position counts add a different angle than applicant counts do.

Dental anesthesiology filled every one of its 34 positions in 2026.

Periodontics left 3 of 132 positions unfilled, prosthodontics 14 of 130, oral and maxillofacial surgery 17 of 260, orthodontics 21 of 362, and pediatric dentistry 36 of 480 — the most positions any specialty here left open, despite also drawing the second-most applicants.

Endodontics is a recognized dental specialty with its own accredited residency and its own certifying board, the American Board of Endodontics — but it does not appear anywhere in the Postdoctoral Dental Matching Program's results.

The program types it tracks are AEGD, GPR, GPR-CAN, OMS, ORTHO, PED, PERIO, PROS, and ANES.

Endodontics is not one of them.

That means there is no applicant count, no position count, and no match count for endodontics to compare against the other six specialties here, and none should be assumed or estimated.

Why endodontics doesn't participate in this particular match isn't published anywhere in the source, so this article doesn't guess at a reason.

For what an endodontics residency itself requires once someone is in one, see endodontics residency: the 24-month minimum; for the specialty's voluntary certification path, see ABE board certification for endodontists.

A single year's snapshot doesn't say whether a specialty is getting more or less competitive — a published multi-year series does.

Three of the six specialties compared here have one: orthodontics, oral and maxillofacial surgery, and pediatric dentistry.

Periodontics, prosthodontics, and dental anesthesiology don't have a multi-year applicant series sourced here, so only their single-year 2026 snapshot appears above.

The three shapes are genuinely different.

Orthodontics is the only one of the three that rose every single year — 593 to 722, without a dip — while its positions moved only from 345 to 362 over the same span.

Oral and maxillofacial surgery and pediatric dentistry both fell for three consecutive years before recovering: OMS dropped to 384 in 2024 before climbing back to 440, and pediatric dentistry dropped to 592 before climbing to 693, above where it started in 2022.

Positions grew for all three specialties over the five years — orthodontics from 345 to 362, OMS from 242 to 260, pediatric dentistry from 439 to 480 — but only orthodontics paired that modest position growth with unbroken applicant growth every year.

That combination, not any single year's numbers, is why orthodontics reads as the specialty under the most sustained applicant pressure of the three with published trend data.

It's tempting to divide each specialty's matched count by its applicant count and rank all six by the result.

Don't — the Match's own totals show why that arithmetic doesn't hold.

Applicants can rank more than one program type on the same application, so the per-specialty applicant counts overlap rather than represent six distinct groups of people.

Add the applicant counts for every program type the 2026 Match tracks and the total comes to 3,554 — more than the actual pool of 3,213 people who applied.

That overlap means an applicant counted in the orthodontics total might also be counted in the OMS or PERIO totals, hedging across programs the same way many applicants also rank a GPR or AEGD as a backup.

A rate built from those overlapping counts would understate every applicant's real odds, because it treats their other options as if they didn't exist.

What the source supports, reported exactly as published: applicants, positions, and matched, specialty by specialty, side by side — not a ranked percentage.

The same gaps apply across all six specialties, not just one.

The Postdoctoral Dental Matching Program doesn't publish program cost or tuition, resident stipends, how many accredited programs exist per specialty, or board-certification pass rates, so none of those numbers appear anywhere on this site tied to Match data, for any specialty.

It also doesn't explain why any individual applicant matched or didn't, or why endodontics sits outside the Match entirely.

Board scores, class rank, and research all plausibly factor into a competitive residency application the way they do for any specialty, but the Match's published results don't break down which matters most, or by how much, for any of the six.

This page compares admissions pressure across six specialties at once.

For the training itself once you're matched, and for how the match and board certification work in general, see dental residency & board certification.

For what each of the 12 recognized specialties actually treats, see the 12 dental specialties explained.

Four of the specialties compared here have their own dedicated match article with more specialty-specific detail: how competitive orthodontics residency is, how competitive OMS residency is, how competitive pediatric dentistry residency is, and how competitive periodontics residency is.

For how pay compares across the same specialties, rather than admissions, see which dental specialty pays the most.

This article reports 2026-2027 Match figures published by the Postdoctoral Dental Matching Program for general information; it is not admissions advice. Match results and program capacity change year to year — confirm current figures directly at natmatch.com/dentres.