Dental periodontics is the specialty of dentistry focused on the structures that support your teeth: the gums, the bone underneath them, and the ligaments that hold each tooth in its socket. Periodontists prevent, diagnose, and treat diseases affecting these tissues, and they’re also the specialists most involved in placing dental implants. About 42% of American adults over 30 have some form of periodontal disease, making this one of the most commonly needed dental specialties.
What Periodontists Actually Treat
A general dentist handles your teeth themselves. A periodontist handles everything anchoring those teeth in place. The American Dental Association defines periodontics as the specialty covering “the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.”
In practical terms, that means periodontists treat gum infections ranging from mild gingivitis to advanced periodontitis, perform surgery to rebuild lost bone and gum tissue, place dental implants, and manage complications when implants develop problems of their own. They also handle cosmetic gum procedures, like reshaping a “gummy smile” or grafting tissue to cover exposed tooth roots.
How Periodontal Disease Is Classified
Periodontal disease isn’t a single condition. Dentists classify it by stage (how much damage has already occurred) and grade (how quickly the disease is progressing). This system helps determine whether you need basic treatment or more aggressive intervention.
The four stages reflect increasing severity:
- Stage I: Early disease with less than 15% bone loss around affected teeth. Gum pockets are only slightly deeper than normal.
- Stage II: Moderate damage with 15 to 33% bone loss. You may notice bleeding gums or mild tenderness, but no teeth are at immediate risk.
- Stage III: Severe disease where bone loss extends into the middle third of the tooth root or beyond. Up to four teeth may have already been lost to the disease.
- Stage IV: The most advanced form, with more than four teeth lost and visible changes to your bite, such as teeth drifting apart, tilting forward, or your bite collapsing.
Grades A through C capture how fast the disease is moving. Grade A means little or no progression over time. Grade B means slow, steady advancement. Grade C means rapid bone loss, often accelerated by smoking (10 or more cigarettes a day) or poorly controlled diabetes. These risk factors can bump your grade higher regardless of how your X-rays look at a single visit.
How Common Periodontal Disease Is
National survey data from the National Institute of Dental and Craniofacial Research shows 42.2% of U.S. adults aged 30 and older have periodontitis. Most of those cases (34.4%) are mild or moderate, while 7.8% have the severe form. The numbers climb with age: nearly 60% of adults 65 and older have some degree of the disease. Many people don’t realize they have it because early and moderate periodontal disease is often painless.
Non-Surgical Treatment
The first-line treatment for most periodontal disease is scaling and root planing, sometimes called a deep cleaning. It goes well beyond a standard dental cleaning. Your provider uses hand instruments or ultrasonic tools to remove hardened tartar and bacteria from below the gumline, then smooths the tooth root surfaces so gum tissue can reattach more easily. The goal is to eliminate the bacterial colonies living in the pockets between your gums and teeth.
The procedure is typically done under local anesthesia, often one side of the mouth at a time. Afterward, gums may feel tender for a few days and teeth can be temporarily sensitive to temperature. Over the following weeks, the gum tissue tightens around the teeth as inflammation resolves. For many people with Stage I or Stage II disease, this is the only treatment needed, though follow-up maintenance cleanings every three to four months are standard to keep the disease from returning.
Surgical Procedures
When deep cleaning alone doesn’t resolve the infection, or when significant bone has already been lost, periodontists turn to surgery. The most common procedure is pocket reduction (or flap) surgery, where the gum tissue is gently folded back to allow direct access for cleaning the root surfaces and reshaping damaged bone. The tissue is then repositioned snugly against the tooth, reducing the pocket depth and making it harder for bacteria to recolonize.
Bone grafting is another core periodontal procedure. When disease has eaten away at the jawbone supporting your teeth, grafting material is placed into the damaged area to act as a scaffold. Your body gradually replaces this material with its own new bone over several months. The grafting material can come from several sources: processed human bone from a tissue bank, animal-derived bone (commonly cow or pig), synthetic minerals, or in some cases bone harvested from another site in your own body. Periodontists sometimes add platelet-rich plasma drawn from your own blood to the graft site to speed healing.
Bone grafting also plays a critical role before dental implants. If your jawbone has thinned too much to anchor an implant securely, a graft can rebuild the width and volume needed. In the upper jaw, a related procedure called a sinus lift raises the floor of the sinus cavity to create room for the implant.
Dental Implants and Peri-Implantitis
Periodontists are among the primary specialists who place dental implants. Their training in bone biology, gum tissue management, and surgical technique makes them particularly suited for complex cases involving severe bone loss, implants in the visible front teeth where cosmetic precision matters, or patients with health conditions that complicate healing.
They also manage peri-implantitis, which is essentially periodontal disease around an implant. Just as natural teeth can lose bone support to bacterial infection, implants can too. When this happens, a periodontist may treat it with professional cleaning of the implant surface, surgical access to remove infected tissue, antibiotics, or regenerative procedures to rebuild lost bone. The goal is to save the implant when possible and restore stable tissue around it.
Links to Overall Health
Periodontal disease doesn’t stay in your mouth. The chronic inflammation it creates releases inflammatory molecules into your bloodstream, and the bacteria themselves can enter circulation through bleeding gum tissue. This has measurable effects on several major health conditions.
The relationship with diabetes runs in both directions. High blood sugar impairs the immune cells that fight gum infections, making periodontal disease worse. At the same time, the ongoing inflammation from periodontitis interferes with insulin signaling, making blood sugar harder to control. Treating periodontal disease with deep cleaning has been shown to lower key inflammatory markers in people with diabetes, potentially improving their metabolic control.
In cardiovascular disease, certain oral bacteria (particularly one called Porphyromonas gingivalis) can enter the bloodstream and promote inflammation in blood vessel walls. This inflammation reduces the production of nitric oxide, a molecule that keeps arteries flexible, and can trigger the kind of plaque buildup and blood clotting that leads to heart attacks and strokes.
During pregnancy, hormonal changes increase blood flow to the gums and make the tissue more permeable. This allows oral bacteria and their byproducts to reach the bloodstream more easily, and in some cases they’ve been found in amniotic fluid. The resulting inflammation can trigger premature rupture of membranes and uterine contractions, raising the risk of preterm birth.
Training and When You’d See One
Becoming a periodontist requires completing dental school followed by a three-year residency program (with a minimum of 30 months of instruction) specifically in periodontics. That residency covers gum surgery, bone grafting, implant placement, and the management of complex inflammatory conditions. Board certification requires passing additional examinations after residency.
Most people see a periodontist through a referral from their general dentist. The typical trigger is periodontal pockets that haven’t responded to initial treatment, persistent bleeding or gum recession, bone loss visible on X-rays, or the need for implants or gum surgery. If your dentist has measured deep pockets around your teeth during a routine exam and basic cleaning hasn’t improved them, a periodontal referral is the usual next step.