Most people outside dentistry picture the field as one profession: you go to "the dentist." Inside the industry, the split between general dentists and specialists shapes almost everything - who refers to whom, who buys which equipment, which practices are worth a sales call, and where a new specialty office has room to grow.
That split isn't the same everywhere. In some states, roughly one in four dental providers is a specialist. In others, it's closer to one in six. And within the specialist share, individual specialties cluster in ways that a national average hides completely.
This piece breaks down that supply, state by state and specialty by specialty, using verified NPI registry records. Every specialty and state mentioned links to its full page, so you can drill into the underlying numbers yourself.
The national baseline
Across the US, our directory holds about 313,000 general dentist records and about 83,500 records for providers in the twelve recognized dental specialties (orthodontics, oral surgery, pediatric dentistry, endodontics, periodontics, prosthodontics, and six smaller ones). That works out to roughly one specialist for every 3.7 general dentists.
Broken out per 100 general dentists, the national supply of each specialty looks like this:
| Specialty | Records nationally | Per 100 general dentists |
|---|---|---|
| Orthodontists | 23,142 | 7.4 |
| Pediatric dentists | 19,328 | 6.2 |
| Oral & maxillofacial surgeons | 15,338 | 4.9 |
| Endodontists | 10,770 | 3.4 |
| Periodontists | 10,374 | 3.3 |
| Prosthodontists | 5,711 | 1.8 |
| Dental public health | 2,324 | 0.7 |
| Oral & maxillofacial pathologists | 1,245 | 0.4 |
| Dental anesthesiologists | 752 | 0.2 |
The long tail - orofacial pain specialists, oral radiologists, and oral medicine specialists - adds fewer than 1,000 records combined.
A quick note on method before going further. A provider in the NPI registry can list more than one taxonomy, and about 11,900 specialists in our data also list general dentistry. Some also list two specialties. So the specialty counts above overlap slightly, and the state shares below should be read as "how much of the state's dental supply is specialist-registered," not a perfectly exclusive headcount. Counts also include both individual providers and practice organizations. For how we map raw taxonomy codes to these specialty pages, see our methodology.
The most specialist-heavy states
Rank every state by what share of its general-plus-specialist supply is made up of specialists, and the top of the list leans heavily toward the Northeast and Mid-Atlantic:
| Rank | State | General dentists | Specialists | Specialist share | GDs per specialist |
|---|---|---|---|---|---|
| 1 | Massachusetts | 9,405 | 3,716 | 28.3% | 2.5 |
| 2 | Connecticut | 3,787 | 1,454 | 27.7% | 2.6 |
| 3 | Delaware | 657 | 242 | 26.9% | 2.7 |
| 4 | Colorado | 6,635 | 2,344 | 26.1% | 2.8 |
| 5 | Maryland | 6,028 | 2,116 | 26.0% | 2.8 |
| 6 | New York | 18,421 | 6,322 | 25.6% | 2.9 |
| 7 | Utah | 2,892 | 989 | 25.5% | 2.9 |
| 8 | New Hampshire | 1,436 | 479 | 25.0% | 3.0 |
| 9 | New Jersey | 9,458 | 3,117 | 24.8% | 3.0 |
| 10 | Rhode Island | 879 | 290 | 24.8% | 3.0 |
Massachusetts is the clear leader, and the specialty-level data shows why: it ranks first in the country, per general dentist, for endodontists, periodontists, and prosthodontists. The state is home to three dental schools - Harvard, Tufts, and Boston University - and a dense academic and hospital system, which tends to train specialists and then keep a lot of them nearby.
Colorado and Utah are the two outliers from outside the Eastern Seaboard. Both are there largely because of two specialties, which we'll come to below.
The most general-dentist-heavy states
At the other end, specialists make up less than 18% of supply:
| State | General dentists | Specialists | Specialist share | GDs per specialist |
|---|---|---|---|---|
| Michigan | 10,796 | 2,161 | 16.7% | 5.0 |
| Illinois | 14,265 | 2,889 | 16.8% | 4.9 |
| Oklahoma | 3,612 | 727 | 16.8% | 5.0 |
| South Dakota | 813 | 168 | 17.1% | 4.8 |
| West Virginia | 1,317 | 271 | 17.1% | 4.9 |
| Vermont | 631 | 131 | 17.2% | 4.8 |
| Wyoming | 544 | 115 | 17.5% | 4.7 |
| Wisconsin | 5,294 | 1,135 | 17.7% | 4.7 |
Two things stand out. First, this isn't only a rural list. Michigan and Illinois are large, urbanized dental markets - Illinois has the fifth-most general dentists of any state - and both still sit at the bottom for specialist share. Second, the gap between top and bottom is substantial: Massachusetts has one specialist for every 2.5 general dentists, Michigan one for every 5. Twice as many general practices per specialist means a very different referral landscape for anyone working in either state.
The biggest market of all, California, lands in the middle at 20.7% - 45,722 general dentists and 11,956 specialists. Texas is slightly above average at 23.5%, and Florida is at 22.9%.
Specialty by specialty: where each one concentrates
The aggregate share hides the most useful pattern: each specialty has its own geography. Here's where each of the six largest specialties is densest and thinnest, measured per 100 general dentists.
Orthodontists
National average: 7.4 per 100 GDs.
- Highest: Colorado (11.4, with 754 orthodontists), Utah (11.0), Nevada (10.1).
- Lowest: Alaska (3.3) and Michigan (4.9).
- Largest by count: California (3,172) and Texas (2,165).
The Mountain West dominates orthodontics. Utah's position makes intuitive sense - it has the youngest population of any state, and orthodontic demand follows kids and teens.
Pediatric dentists
National average: 6.2 per 100 GDs.
- Highest: Utah (9.9), Delaware (9.3), Connecticut (9.3).
- Lowest: West Virginia (3.0) and Michigan (3.1).
- Largest by count: California (2,369) and Texas (2,093).
Utah again, for the same demographic reason. Texas is notable here: with 2,093 pediatric dentists it's barely behind California despite having far fewer general dentists, putting it well above the national rate at 7.9 per 100.
Oral & maxillofacial surgeons
National average: 4.9 per 100 GDs.
- Highest: Delaware (8.8), Rhode Island (6.7), Connecticut (6.7).
- Lowest: New Mexico (3.4) and Oregon (3.6).
- Largest by count: California (1,866) and Texas (1,214).
Small Northeastern states lead per capita, though with small absolute numbers (Delaware's figure is 58 surgeons). California is interesting in the other direction - the largest count, but among the lower ratios in the country at 4.1 per 100.
Endodontists
National average: 3.4 per 100 GDs.
- Highest: Massachusetts (5.0), Maryland (4.6), Hawaii (4.6).
- Lowest: Wyoming (1.1) and Oklahoma (1.8).
- Largest by count: California (1,629) and Texas (856).
Wyoming has just six endodontists in our data. In states like that, general dentists handle far more root canal work themselves - which matters if you sell endodontic equipment or materials, because your buyer there is often a GP, not a specialist.
Periodontists
National average: 3.3 per 100 GDs.
- Highest: Massachusetts (6.7), Rhode Island (4.9), Delaware (4.9).
- Lowest: Alaska and North Dakota (1.3 each).
- Largest by count: California (1,483) and New York (813).
Massachusetts's lead in periodontics is the widest of any specialty - more than double the national rate.
Prosthodontists
National average: 1.8 per 100 GDs.
- Highest: Massachusetts (5.0), District of Columbia (3.8), Hawaii (3.3).
- Lowest: South Dakota (one prosthodontist in our data) and Vermont (three). Wyoming has none.
- Largest by count: California (702) and Texas (557).
Prosthodontics is the most concentrated of the major specialties. Outside a handful of academic hubs, it's thin - and in a few states it's practically absent.
The smaller specialties
The six specialties below account for under 6,000 records nationally, but they're often the most valuable to find precisely because they're rare:
- Dental public health specialists - 2,324 nationally, concentrated in state health departments, academic programs, and community health settings.
- Oral & maxillofacial pathologists - 1,245, largely tied to dental schools and hospital labs.
- Dental anesthesiologists - 752, a small but growing group as in-office sedation expands.
- Orofacial pain specialists - 419.
- Oral & maxillofacial radiologists - 353.
- Oral medicine specialists - 128.
For these, state-level ratios swing too much on small numbers to be meaningful. The useful question is simply "are there any near me?" - and the specialty pages answer that directly, state by state.
What this means in practice
For specialty practice owners deciding where to open. A high specialist share means more competition for every general dentist's referral. If you're an orthodontist weighing Colorado against Michigan, Colorado has more than twice as many orthodontists per general practice. That doesn't make Michigan automatically better - but it does mean you'd be competing for a far less crowded referral base.
For sales and marketing teams. If you sell specialty-specific products, a state's general dentist count can be badly misleading. Illinois has more than 14,000 general dentists but a lower-than-average specialist share; Delaware has under 700 but outsized oral surgeon and pediatric dentist density. Filter by the specialty you sell to before you rank anything - the same principle we cover in building a dental sales territory map.
For anyone selling to general dentists. Thin-specialist states are where GPs do the widest range of procedures themselves - endodontics in Wyoming, prosthetics in the Dakotas and Vermont. That makes general practices in those states a larger market for products you might otherwise only pitch to specialists.
For recruiters and DSOs. Specialist supply is a staffing signal as much as a market signal. States at the bottom of a specialty's ranking are where a multi-specialty group will struggle most to hire, and where an in-house specialist may be most valuable. (We looked at the same question for hygienists in Recruiting Dental Hygienists: Which States Have the Deepest Talent Pool.)
Run your own comparison
Every number in this piece comes from the same verified NPI data behind the site. If you want to compare a specific combination - say, endodontists plus periodontists across five Southern states - the TAM calculator totals it in seconds. You can also start from the full list of specialties or the state index and drill down to the city level from any page.