What Is the Difference Between a Dentist and a Periodontist?

By Dr. Chanook David Ahn, DMD September 19, 2026 7 min read

A periodontist is a dentist who completed an additional three years of specialty training focused on the gums, bone, and supporting structures of the teeth. All periodontists are dentists, but not all dentists are periodontists. Understanding this distinction matters because it determines who is best qualified to treat certain conditions, and knowing when to see a specialist can be the difference between saving a tooth and losing one.

As a board-certified periodontist who works alongside general dentists every day at The Loft Dental Studio in Costa Mesa, I see firsthand how the two roles complement each other. Here is a clear explanation of how we are different, where we overlap, and when each type of provider is the right choice for you.

Education and Training

Both general dentists and periodontists begin with the same foundation: a four-year undergraduate degree followed by four years of dental school, earning either a DMD (Doctor of Dental Medicine) or DDS (Doctor of Dental Surgery) degree. These two degrees are equivalent and cover the same curriculum. After dental school, a general dentist is licensed to practice the full scope of dentistry.

A periodontist, however, continues training for an additional three years in an accredited periodontics residency program. During this residency, the periodontist receives intensive, specialized training in:

In my case, I graduated from Tufts University School of Dental Medicine, then completed a General Practice Residency (GPR) at Yale-New Haven Hospital, where I served as Chief Resident. After that, I completed my periodontics residency at the UCLA-affiliated VA program, followed by achieving board certification from the American Board of Periodontology. That is seven years of education after college, compared to four for a general dentist.

Key Takeaway

A periodontist has a minimum of seven years of post-college education: four years of dental school plus three years of specialty residency. A general dentist has four years of dental school. Board certification adds an additional layer of examination and peer review that fewer than half of all periodontists pursue.

What Periodontists Specialize In

The word "periodontics" comes from the Greek words "peri" (around) and "odont" (tooth). A periodontist specializes in everything around the tooth: the gums, the periodontal ligament, the alveolar bone, and the cementum. While a general dentist focuses primarily on the teeth themselves, fillings, crowns, root canals, cosmetic work, a periodontist focuses on the foundation that holds the teeth in place.

The core areas of periodontic specialty include:

When Your General Dentist Refers You to a Periodontist

Most patients first see a periodontist through a referral from their general dentist. Common reasons for referral include:

A referral to a periodontist is not a sign that something has gone wrong with your dental care. It is a sign that your general dentist is acting in your best interest by connecting you with a specialist who has the advanced training to address a specific problem.

Procedures Only a Periodontist Should Perform

While general dentists can legally perform many periodontal procedures, certain treatments are best handled by a specialist due to their complexity and the consequences of a suboptimal outcome:

These procedures require microsurgical skill, detailed knowledge of soft tissue and bone biology, and experience managing complications. A periodontist performs these procedures daily, while a general dentist may encounter them infrequently.

General Dentist vs. Periodontist: Comparison

General Dentist Periodontist
Education 4 years dental school 4 years dental school + 3 years residency
Board certification Not typically pursued Available through the American Board of Periodontology
Primary focus Teeth: fillings, crowns, root canals, cleanings, cosmetics Gums and bone: disease treatment, implants, grafting, regeneration
Routine cleanings Yes Periodontal maintenance cleanings for patients with gum disease history
Deep cleanings Yes Yes, plus surgical options when deep cleaning alone is insufficient
Dental implants Straightforward cases All cases, including complex bone grafting and full-arch reconstruction
Gum surgery Rarely performed Core competency: grafts, flap surgery, crown lengthening
When to see Routine exams, cavities, crowns, whitening, orthodontic referrals Gum disease, bone loss, implants, recession, loose teeth, peri-implantitis

The Advantage of a Multi-Specialty Practice

At The Loft Dental Studio, we have both general dentists and a board-certified periodontist under the same roof. This model offers significant advantages for patients:

Common Misconceptions

Misconception: Periodontists only treat gum disease.

While gum disease treatment is a major part of a periodontist's work, the specialty also includes dental implant surgery, cosmetic gum procedures (like fixing a gummy smile or correcting uneven gum lines), bone regeneration, and managing the long-term health of tissues around implants. Many patients see a periodontist for implants without ever having had gum disease.

Misconception: If my dentist can do it, I do not need a specialist.

General dentists are trained to provide a broad range of services, and many are highly skilled. But there is a reason medical and dental fields have specialists. A periodontist has spent three additional years performing complex soft tissue and bone surgeries under expert supervision. For procedures like gum grafts, sinus lifts, and implant placement in compromised bone, that additional training translates to more predictable outcomes and fewer complications.

Misconception: Seeing a periodontist costs significantly more.

Fees for periodontal procedures are determined by the procedure itself, not solely by the provider's title. Insurance plans typically cover periodontal treatment at the same rate regardless of whether a general dentist or periodontist performs it. In many cases, having a specialist handle a complex procedure the first time reduces the total cost by avoiding retreatment.

Key Takeaway

A general dentist and a periodontist are partners in your oral health, not competitors. Your general dentist manages the day-to-day health of your teeth, while your periodontist handles the specialized care of the gums, bone, and implants that support them. The best outcomes happen when both work together.

How to Know If You Need a Periodontist

You should consider seeing a periodontist if you experience any of the following:

You do not need a referral to see a periodontist. Many patients schedule a consultation on their own after noticing symptoms or researching their options. At The Loft Dental Studio, Dr. Ahn sees both referred patients and those who come directly. A thorough evaluation includes a comprehensive periodontal charting, review of dental and medical history, and any necessary imaging to assess the condition of the gums and bone.

If you are unsure whether you need a general dentist or a periodontist, calling us at (714) 549-7030 is a good starting point. Our team can help you determine the right provider based on your specific situation.

Questions About Your Gum Health?

Schedule a consultation with board-certified periodontist Dr. Chanook David Ahn for a thorough evaluation of your gums, bone, and overall periodontal health.

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Learn more: What Is Periodontics? · Periodontal Treatment

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