A periodontist is a dentist who specializes in preventing, diagnosing, and treating gum disease, as well as placing dental implants. While your general dentist handles routine cleanings and fillings, a periodontist completes three additional years of training focused specifically on the gums, bone, and other structures that hold your teeth in place. Nearly 47% of American adults over 30 have some form of gum disease, making this one of the most commonly needed dental specialties.
How Periodontists Differ From General Dentists
General dentists are trained to handle a wide range of oral health issues, including mild gum inflammation. If your gums are red, swollen, or bleed when you brush, your dentist will typically start with a professional cleaning, improved hygiene instructions, and follow-up visits to track your progress. This early stage, called gingivitis, usually reverses with these basic steps.
A periodontist steps in when things get more complicated. You’ll typically be referred for moderate to severe gum disease, gum recession that needs grafting, complex bone loss around teeth, or implant placement. Periodontists also manage patients whose overall health affects gum healing, such as people with diabetes or bleeding disorders. One key clinical marker: if the spaces between your gums and teeth (called pockets) measure 5 millimeters or deeper, standard cleanings can no longer reach the bacteria effectively, and a periodontist’s expertise becomes necessary.
Training and Education
Every periodontist first completes dental school and earns a general dentistry degree. After that, they enter a residency program that lasts three consecutive academic years, with a minimum of 30 months of instruction. This training covers surgical anatomy, the microbiology of gum infections, wound healing, immunology, and the relationship between gum disease and overall health.
On the clinical side, residents train in both nonsurgical treatments (deep cleanings, infection control) and a full range of surgeries: reshaping gum and bone tissue, regenerating lost bone, performing gum grafts, and placing dental implants. They also study how medications interact with gum healing and how conditions like diabetes change the way gum disease progresses.
After residency, periodontists can pursue board certification through the American Board of Periodontology. This requires passing a written qualifying exam followed by a separate in-person oral exam. Board certification is voluntary but signals an additional level of verified expertise.
Common Procedures
The most common starting point is scaling and root planing, a nonsurgical deep cleaning that removes bacterial buildup from below the gumline and smooths the tooth roots so gums can reattach. It’s the first line of treatment for mild to moderate gum disease and is far less invasive than surgery.
When deep cleaning isn’t enough, periodontists perform several types of surgery:
- Pocket reduction surgery: The periodontist folds back the gum tissue, removes bacteria from deep pockets, and reshapes damaged bone before securing the gums back in place. This makes the pockets shallower and easier to keep clean.
- Gum grafting: For receding gums that expose tooth roots, tissue is taken from another area of your mouth (or a donor source) and attached to the affected site. This protects roots from decay and improves appearance.
- Bone grafting and regeneration: When gum disease has destroyed bone around a tooth, grafting material can rebuild that support. Regenerative techniques use specialized materials to encourage your body to regrow lost bone and tissue.
- Crown lengthening: Removing excess gum tissue to expose more of a tooth’s surface, often needed before a dental crown can be placed.
Some periodontists also offer laser-assisted treatment as an alternative to traditional surgery. One FDA-cleared approach uses a specific laser wavelength to selectively remove infected tissue inside gum pockets while leaving healthy tissue intact. Compared to conventional surgery, laser treatment typically results in less bleeding, less post-operative pain, reduced sensitivity, and faster healing. The gum tissue is compressed against the tooth root to form a natural seal, so no stitches are needed.
Dental Implant Placement
Periodontists are one of the primary specialists who place dental implants. Their deep understanding of bone and gum tissue makes them well suited for this work, from single-tooth replacements to full-arch solutions.
The process starts with digital treatment planning, where the periodontist maps the precise position of each implant to support both function and appearance. If your jawbone is too thin or has lost volume (common after tooth loss or long-standing gum disease), a bone graft or sinus lift can rebuild the foundation before the implant is placed. Periodontists also perform gum surgery around implants to create natural-looking, healthy tissue contours that are easier to keep clean.
After implants are in place, periodontists monitor for a condition called peri-implantitis, an infection that causes bone loss around an implant. If caught early, it can be treated with deep cleaning, antibiotics, or regenerative procedures to preserve the implant.
Why Gum Health Affects Your Whole Body
Gum disease isn’t just a mouth problem. When the gum tissue around your teeth breaks down, bacteria and their toxic byproducts can enter your bloodstream, triggering inflammation throughout the body. These bacteria have been found in heart tissue, heart valves, and the fatty plaques that build up inside arteries.
One of the primary bacteria involved in gum disease promotes blood clot formation and damages the lining of blood vessels. People with periodontitis have a meaningfully higher risk of heart attack, stroke, and peripheral artery disease. One analysis found that gum disease increased the risk of peripheral artery disease by up to five times. The link to stroke is also well established, with periodontitis patients showing higher rates of blocked blood flow to the brain.
The relationship with diabetes runs in both directions. People with diabetes are more likely to develop gum disease, and those who have both conditions tend to have worse blood sugar control. Treating gum disease can improve glycemic management, which is one reason periodontists coordinate closely with patients’ medical teams.
How Gum Disease Severity Is Measured
During a periodontal exam, the periodontist uses a small measuring instrument to check the depth of the space between each tooth and the surrounding gum. Healthy gums measure 1 to 3 millimeters. Pockets of 4 to 5 millimeters indicate early gum disease. Depths of 5 to 7 millimeters signal moderate disease, and anything from 7 to 12 millimeters is advanced.
Pockets deeper than 5 millimeters generally can’t be cleaned effectively with standard instruments, which is why more intensive treatment becomes necessary at that point. The periodontist also evaluates bone loss using X-rays, checks for gum recession, and assesses how much the teeth have loosened. All of this determines whether a tooth can be saved and which treatment approach will work best.
Who Is Most at Risk for Gum Disease
Gum disease becomes dramatically more common with age. Among adults 30 to 44, about 30% have some form of periodontitis, with 4% having the severe form. By ages 45 to 64, that total jumps to 46%, and severe cases rise to about 10%. Among adults 65 and older, nearly 60% have periodontitis. Smoking, diabetes, genetic predisposition, and certain medications that reduce saliva flow all increase your risk significantly. If you fall into any of these categories and notice persistent gum bleeding, receding gums, or loose teeth, a periodontist can assess the damage and map out a treatment plan before more bone and tissue is lost.