Periodontists and oral and maxillofacial surgeons both complete CODA-accredited residencies after dental school, and both residencies include dental implant training — but they are different careers.
A periodontist spends at least three academic years training in the tissues that support the teeth.
An oral surgeon spends at least four years training in surgery of the mouth, jaws and face, and can add a medical degree along the way.
Here is how the two careers compare on training, scope, pay and settings.
Periodontist vs. oral surgeon: the short answer
Both are dental specialties — two of the 12 the National Commission on Recognition of Dental Specialties and Certifying Boards (NCRDSCB) recognizes — and both are entered through a CODA-accredited residency after dental school.
Both residencies also include dental implant training.
Everything after that diverges, starting with what each specialty is defined by.
NCRDSCB defines periodontics as covering "the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes" — the gums and bone that hold teeth in place, with implants as the substitutes.
It defines oral and maxillofacial surgery by "the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region" — surgery across the mouth, jaws and face.
Side by side:
| Periodontist | Oral & maxillofacial surgeon | |
|---|---|---|
| Recognized scope | Prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes | Diagnosis, surgical and adjunctive treatment of diseases, injuries and defects of the hard and soft tissues of the oral and maxillofacial region |
| CODA training minimum | 3 consecutive academic years, minimum 30 months of instruction | 4 years full-time, minimum 120 weeks of clinical OMS |
| Average program length, 2025-26 | 35 months | 53.1 months |
| Accredited programs, 2025-26 | 57 | 103 |
| Graduates in 2025 | 188 | 257 |
| Professionally active, 2025 | 5,480 | 7,482 |
| BLS median wage, May 2025 | No separate series — grouped line at $224,990 | $352,220 |
| Projected growth, 2025 to 2035 | 1% (grouped line) | 6% |
Three of those rows carry real caveats: the grouped pay line stands in for periodontists rather than measuring them directly, the workforce counts include dentists credentialed in both specialties, and CODA's durations are accreditation minimums rather than typical lengths.
The sections below unpack each.
This page also stays in its lane: if your question is actually periodontist vs. general dentist — which gum cases a general practice keeps and which it refers out — that comparison has its own page.
Training: 30 months minimum versus four years
The entry route is identical: a dental degree first, then a CODA-accredited advanced dental education program in the specialty.
From there the clocks diverge.
CODA requires periodontics programs to run three consecutive academic years with a minimum of 30 months of instruction.
For oral and maxillofacial surgery, the minimum is four years of full-time study with at least 120 weeks of clinical OMS.
Those are floors, not typical lengths.
In the CODA/ADA Health Policy Institute 2025-26 Survey of Advanced Dental Education, accredited periodontics programs averaged 35 months and accredited OMS programs averaged 53.1 months.
BLS describes OMS programs as typically taking 4 to 6 years and notes they may lead to a joint M.D. degree.
The medical degree is an option, not the standard.
HPI's survey counted 51 dental schools or institutions offering accredited OMS programs with an option to pursue an M.D. degree, out of the 103 OMS programs operating in 2025-26 — about half.
CODA's published minimum describes the surgical training itself and does not define a separate, longer MD track.
Part of what fills the extra time is visible in the OMS standards: at least 32 weeks on anesthesia and medical services, including at least 20 weeks on the anesthesia service functioning as an anesthesia resident, and graduates must be trained to competence in delivering general anesthesia and deep sedation to patients aged 8 and older.
Periodontics' duration standard is set in academic years and instruction months — the service rotations spelled out in the OMS standards are the clearest structural difference between the two programs.
Pipeline size, from the same 2025-26 survey: periodontics had 57 accredited programs, 193 first-year residents and 188 graduates in 2025, against 103 programs, 285 first-year residents and 257 graduates for OMS.
Money during residency runs in opposite directions.
Periodontics programs averaged $48,280 in first-year tuition and fees (45 of 57 programs charging) against an average first-year stipend of $30,131 (28 programs paying).
OMS programs averaged $40,651 in first-year tuition and fees (28 of 103 charging) against an average first-year stipend of $66,596 (90 paying).
HPI's averages count only the programs that actually charge tuition or pay a stipend, and individual programs vary widely.
Minimums and averages, not predictions
Where the scopes overlap: dental implants
Implants are the clearest ground the two specialties share, and the accreditation evidence is explicit on both sides.
CODA's periodontics standards require didactic and clinical training in dental implants, including implant site development and the surgical placement of dental implants.
CODA's OMS standards require dental implant training covering preoperative, intraoperative and postoperative management of the implant patient.
So both residencies turn out dentists trained in dental implants — with the periodontics requirement naming surgical placement outright and the OMS requirement framed around managing the implant patient before, during and after surgery.
The territories around the implant work differ, though.
A periodontist's implant training sits inside a specialty defined by the supporting and surrounding tissues of the teeth or their substitutes — gum disease and implant site development are the specialty's home ground.
An oral surgeon's implant training sits inside the specialty whose definition reaches across the hard and soft tissues of the oral and maxillofacial region — diseases, injuries and defects among them.
That is a much broader surgical map, and implants are one part of it rather than what the definition is built around.
Two adjacent comparisons have their own pages: endodontist vs periodontist and periodontist vs. prosthodontist.
Scope is set by states, not by accreditation
Pay: two specialties, two different yardsticks
Oral and maxillofacial surgery is one of only three specialties BLS tracks with its own wage series — the others being orthodontics and prosthodontics.
In May 2025, BLS reported a median annual wage of $352,220 for oral and maxillofacial surgeons.
Periodontists have no series of their own: they fall into the grouped line "Dentists, all other specialists," which BLS O*NET defines as all dentists not listed separately, with a median of $224,990 in May 2025.
That grouped figure covers every specialist without a separate series, so treat it as a proxy for periodontists — not as a periodontist salary.
A second limit on the federal numbers: BLS OEWS wages leave out self-employed owners, so what an owner draws from a practice is not in these medians.
The ADA Health Policy Institute's Survey of Dental Practice measures net income for private-practice specialists instead, owners and employees combined.
Its most recent reportable medians come from different years: $445,120 for oral and maxillofacial surgeons (2022) and $295,780 for periodontists (2024).
HPI suppressed the 2025 figures for both specialties because there were too few observations to analyze reliably, and the reportable values swing a lot year to year on small samples.
On outlook, BLS projects employment growth of 6% from 2025 to 2035 for oral and maxillofacial surgeons, orthodontists and prosthodontists, but 1% for "dentists, all other specialists" — the line that includes periodontists.
Handle these numbers with care
Settings: where each career runs
ADA HPI counted 7,482 professionally active dentists holding a certificate or degree in oral and maxillofacial surgery in 2025 and 5,480 holding one in periodontics.
A dentist holding two specialty credentials is counted in both — but OMS is the larger of the two by this count.
The settings follow from the training and the scope.
OMS residency builds in at least 32 weeks on anesthesia and medical services and competence in general anesthesia and deep sedation for patients aged 8 and older — service rotations written into the accreditation minimum — and the recognized scope runs across diseases, injuries and defects of the hard and soft tissues of the oral and maxillofacial region.
Periodontics trains to a narrower map: prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes, with implant site development and surgical implant placement inside the required curriculum.
The work concentrates on the tissues around teeth and implants rather than the full maxillofacial span.
For the day-to-day of each role, the full guides go deeper: the periodontist career guide and the oral surgeon career guide.