Periodontics is the dental specialty focused on the structures that support your teeth: the gums, the bone underneath them, and the ligaments that hold each tooth in place. Periodontists prevent, diagnose, and treat diseases affecting these tissues, and they’re also the specialists most often responsible for placing dental implants. If your general dentist has ever mentioned gum disease, bone loss, or receding gums, periodontics is the branch of dentistry that deals with all of it.
What Periodontists Actually Treat
The core of periodontics is gum disease, also called periodontal disease. This ranges from mild gum inflammation (gingivitis) to severe infections that destroy bone and cause teeth to loosen or fall out. But the specialty extends beyond infections. Periodontists also treat gum recession, rebuild bone that has been lost, reshape gum tissue for cosmetic reasons, and surgically place dental implants when teeth are missing.
A useful way to think about it: your general dentist manages the teeth themselves, while a periodontist manages everything that holds the teeth in place. When those supporting structures break down, even perfectly healthy teeth can be lost.
Training Beyond Dental School
Every periodontist first earns a general dental degree, then completes an additional three-year residency in periodontics. That residency covers detailed anatomy of the head and neck, surgical techniques, sedation and anesthesia, immunology, microbiology, and research methodology. Residents spend years performing gum surgeries, bone grafts, and implant placements under supervision before practicing independently. This extra training is what separates a periodontist from a general dentist who may offer some gum treatments but lacks the same surgical depth.
How Gum Disease Is Classified
Periodontists use a staging and grading system to describe how far gum disease has progressed and how quickly it’s moving. Staging (I through IV) reflects the severity of damage already done. Grading (A through C) reflects how fast the disease is advancing and how it may respond to treatment.
- Stage I: Mild. Small amounts of attachment loss between teeth, no bone loss beyond the upper third of the root, no teeth lost to the disease.
- Stage II: Moderate damage but still no tooth loss. Bone loss remains in the upper third of the root.
- Stage III: Significant attachment loss, bone destruction extending into the middle third of the root or deeper, and up to four teeth lost.
- Stage IV: Extensive destruction. Five or more teeth lost, remaining teeth may be shifting or drifting, and the bite itself can collapse. Complex rehabilitation is typically needed.
Grading adds context. Grade A means the disease is progressing slowly, with no measurable bone loss over five years. Grade B is moderate progression (less than 2 mm of loss over five years). Grade C is rapid, with 2 mm or more of bone loss in that same window. Smoking and poorly controlled diabetes both push the grade higher, signaling faster destruction and a harder road to treatment.
Signs That Point to Periodontal Problems
The key measurement periodontists use is pocket depth: the space between your gum and the tooth, measured in millimeters with a small probe. Healthy gums sit snugly against the tooth, creating pockets of 1 to 3 mm. Once pockets reach 4 to 5 mm, early gum disease is present. Pockets of 5 to 7 mm indicate moderate disease, and anything from 7 to 12 mm signals advanced periodontitis. A regular toothbrush can’t clean effectively below about 3 mm, which is why pockets of 4 mm or more start to trap bacteria and worsen on their own.
Other warning signs include gums that bleed when you brush or floss, persistent bad breath, gums that look puffy or pull away from the teeth, teeth that feel loose, and changes in how your bite fits together. Many people don’t experience pain until the disease is well advanced, which is why pocket measurements during routine dental visits matter.
Non-Surgical Treatments
The first-line treatment for most gum disease is scaling and root planing, often called a deep cleaning. Unlike a standard cleaning that focuses above and along the gumline, scaling and root planing reaches below the gums to remove hardened plaque and bacteria from the root surfaces. After the deposits are cleared, the root is smoothed so that gum tissue can reattach more easily and bacteria have a harder time gaining a foothold again. Providers use hand instruments, ultrasonic tools, or both. Most patients need local anesthesia for the procedure, and the mouth is often treated in sections over two or more visits.
For many people with Stage I or Stage II disease, deep cleaning combined with improved home care is enough to halt progression. Your periodontist will re-measure pocket depths after a healing period to determine whether further treatment is needed.
Surgical Procedures
When non-surgical treatment doesn’t fully resolve the problem, or when the disease has already caused significant tissue loss, periodontists turn to surgery. The most common procedures include:
- Pocket reduction (flap surgery): The gum is folded back so the periodontist can clean deep deposits and reshape damaged bone, then the tissue is repositioned snugly against the tooth to reduce pocket depth.
- Gum grafting: Tissue is transplanted (often from the roof of the mouth or a donor source) to cover exposed roots or add volume to a thinning gumline. This lowers sensitivity, protects roots from decay, and improves appearance.
- Bone grafting and regeneration: When bone has been lost, grafting material is placed to encourage the body to rebuild. Guided tissue regeneration techniques use membranes to direct new bone and tissue growth into the right areas.
Recovery from conventional gum surgery typically takes a few weeks, with the first several days involving swelling, tenderness, and dietary restrictions.
Laser-Assisted Treatment
A newer option called LANAP (Laser-Assisted New Attachment Procedure) uses a specialized laser to remove diseased gum tissue and kill bacteria without scalpels or sutures. The laser targets infected tissue while leaving healthy tissue intact, and it stimulates the body’s own regeneration of gum and bone. Recovery is notably faster, often just one to two days compared to weeks for conventional surgery. Patients typically experience less pain, bleeding, and swelling. Some cases can be treated with minimal or no local anesthesia. Not every case is a candidate for laser treatment, but it has become a widely available alternative for moderate to advanced gum disease.
Dental Implants
Periodontists are among the primary specialists who place dental implants. Their training in bone biology, gum tissue management, and surgical technique makes them well suited for the procedure. Placement ranges from single-tooth implants to full-arch reconstructions. When the jawbone is too thin or has lost volume, periodontists perform bone grafts or sinus lifts to create a stable foundation before the implant is placed. They also shape the gum tissue around implants to look natural and stay easy to clean, which directly affects how long the implant lasts.
When Your Dentist Refers You
General dentists handle early gum disease and routine cleanings, but certain situations call for a periodontist’s expertise. Referrals are most common when pocket depths reach 6 mm or more and don’t respond to initial non-surgical treatment, when bone loss exceeds about one-third of the root length, or when the disease is classified as Stage III or IV. Patients with rapidly progressing disease (Grade C) are also strong candidates for specialist care. Complex situations like teeth that are shifting due to bone loss, or cases where implants need to be placed in compromised bone, fall squarely within the periodontist’s scope.
The Connection to Overall Health
Periodontal disease has well-documented associations with several systemic health conditions, including heart disease, stroke, diabetes, and adverse pregnancy outcomes. The relationship between diabetes and gum disease is considered bidirectional: poorly controlled blood sugar worsens gum disease, and active gum disease makes blood sugar harder to control. The American Dental Association notes, however, that while these associations are consistent across studies, direct causation has not been established. What is clear is that chronic inflammation in the gums doesn’t stay isolated. Managing periodontal health is part of managing your health overall.