A periodontist is a dentist who specializes in the prevention, diagnosis, and treatment of diseases of the tissues supporting and surrounding the teeth — implants included — plus maintaining them, per the National Commission's definition of periodontics; a general dentist is the broad-scope primary provider whose routine care covers the early side of gum disease.
That's the difference between a dentist and a periodontist: the same dental license, plus a specialty residency.
The pay anchors below put the specialist ahead, the referral line between a general dentist and a periodontist moves with each dentist's training, and implants are a genuine overlap — not one provider's exclusive territory.
The short answer
The difference between a dentist and a periodontist comes down to training and case mix.
A general dentist is trained broadly across oral health and treats periodontal disease as one part of routine care; a periodontist completed an additional CODA-accredited residency focused specifically on periodontal disease and implant placement.
Both work inside the scope of a dental license — the periodontist's residency is additional training, not a different legal authority.
General dentists need no additional training after dental school, per BLS — a postdoctoral year is optional unless a state's licensure route requires it, and New York and Delaware require one for initial licensure.
Read the rest of the dentist vs. periodontist comparison the same way: the routine side of gum health — early-stage periodontal disease managed in regular visits — sits with the general dentist, and the cases that need a specialist's depth may be referred out.
There's no fixed rule: the line moves with each dentist's training and comfort.
What each one does
A general dentist handles a variety of dental needs: BLS describes most dentists as general practitioners, and BLS's typical duty list runs from removing decay and filling cavities to repairing or removing damaged teeth, examining x-rays, and making models and measurements for dental appliances.
In the split this article describes, that broad practice includes the routine side of gum health.
A periodontist specializes in the prevention, diagnosis, and treatment of diseases of the tissues that support and surround the teeth — the gums and the bone that supports them: treating disease of those tissues once it goes beyond routine care, and placing dental implants, which CODA's standards require periodontics residents to train to place surgically.
| Comparison | General dentist | Periodontist |
|---|---|---|
| Periodontal case in this split | Routine side: preventive care, early-stage gum disease | Beyond routine care: advanced periodontal disease; implant placement |
| Training beyond dental school | None required after dental school (NY and DE require a residency year for the initial license) | CODA-accredited periodontics residency, 30-month minimum |
| Median pay (BLS, May 2025) | $170,950 (general dentists) | $224,990 — the "all other specialists" group periodontists fall in, not a periodontist-only figure |
| Board certification | Not applicable to this scope | American Board of Periodontology — voluntary |
| Dental implants | Varies by the dentist's training | Trained to place by accreditation standard |
What the periodontics residency adds
Both start the same way: a bachelor's degree — most dental programs require applicants to hold at least one — dental school for a DDS or DMD, and licensure.
A general dentist can begin practicing at that point — per BLS, no additional training is required, and a postdoctoral year is optional unless a state's licensure route requires it; New York and Delaware are states where the initial license itself requires a residency year.
A periodontist continues into a periodontics residency accredited by the Commission on Dental Accreditation (CODA), which must run "three consecutive academic years with a minimum of 30 months of instruction."
Treat 30 months as the accreditation floor, not a typical program length — the 2025-26 CODA/ADA HPI survey average was 35 months.
After residency, a periodontist may pursue certification from the American Board of Periodontology — voluntary, not a license — through a written Qualifying Examination and an Oral Examination.
See board certification in periodontology for how that works, and periodontics residency: what CODA requires for the full residency detail.
Which periodontal cases a GP refers out
There's no fixed rule — the line moves with each dentist's training and comfort.
The routine side of that split — early-stage gum disease managed in regular visits — sits with the preventive and restorative work of a general practice.
The cases this split sends out are the ones beyond routine care: periodontal disease advanced enough to sit in the specialty's territory — disease of the gums and the bone that supports the teeth.
Implant placement sits differently from the rest of this list: it's a genuine overlap rather than a case type that belongs to one provider.
Accreditation standards require periodontics residents to train in surgical implant placement and oral surgery residents in implant-patient management, and whether a given general dentist places implants depends on that dentist's individual training — this article describes where the work can sit without ruling on which provider should handle a given case.
The referral relationship runs both ways
The referral runs one way at a time, in both directions: a general dentist who identifies periodontal disease or an implant case beyond routine care may send it to a periodontist.
It can run back, too.
In the pattern this article describes, once periodontal treatment or implant placement is complete, the restorative work that follows — the crown or bridge that goes on top of an implant, and ongoing periodontal maintenance — may return to the referring general dentist, with a dental hygienist possibly involved in the maintenance visits.
That two-way handoff is what makes this a referral relationship rather than a one-time handout.
Periodontist vs. general dentist salary: who earns more?
The published anchors this article checked put periodontists ahead of general dentists, though none is a clean periodontist-only wage.
BLS's May 2025 median annual wage was $170,950 for general dentists (SOC 29-1021) and $224,990 for the "Dentists, all other specialists" group (SOC 29-1029) that periodontists fall in — a grouped figure across several specialties, not a periodontist wage.
ADA HPI's Survey of Dental Practice is the series that names periodontists: its latest published median net income for private-practice periodontists is $295,780, for 2024 (2025 was suppressed for too few observations), against $199,140 for general-practitioner owners in 2025 and $165,520 for employed general dentists.
Those are two different measures, so don't read them as one ranking: BLS publishes wage estimates — use ADA HPI for owner income — while HPI's net income is a dentist's personal income after practice expenses and before personal income taxes, and the two HPI figures are different years.
Directionally they agree: the specialist out-earns the general dentist.
For the full periodontist pay picture, see periodontist salary; for general-dentist pay, the dentist salary page; for how the specialties rank against each other, see which dental specialty pays the most and general dentist vs. specialist.
For the oral surgeon's side of the implant overlap, see oral surgeon vs. general dentist.
This article is general career information, not clinical, legal, or financial advice. Referral patterns, training requirements, and pay vary by dentist, region, and practice.