NIDCR reports about two in five dentate adults age 30 or older are affected by some form of periodontitis.
Understand periodontal disease from early gingivitis to advanced periodontitis. Learn the warning signs, risk factors, Stage I–IV classification, how dentists diagnose gum and bone loss, what scaling and root planing does, when periodontal surgery may be considered, and how long-term maintenance helps protect your teeth.
Four key facts help explain why gum disease deserves attention even when your teeth do not hurt.
NIDCR reports about two in five dentate adults age 30 or older are affected by some form of periodontitis.
The mildest form causes inflamed, red or bleeding gums and is reversible with professional care and effective oral hygiene.
Periodontitis involves destruction of supporting tissues and bone and can lead to loose teeth or tooth loss.
NIDCR identifies smoking or tobacco use as a major periodontal risk factor and a factor that can impair treatment response.
This simplified figure shows the shift from healthy tissues to gingivitis and progressively more destructive periodontitis. A real diagnosis requires examination, probing, attachment measurements and appropriate imaging.
The deeper the inflammation and attachment loss extend below the gumline, the more complex treatment and maintenance may become.
Gums fit closely around teeth with no disease-related attachment or bone loss.
Plaque-associated inflammation may cause redness, swelling and bleeding, but supporting bone has not been lost from periodontitis.
Inflammation extends deeper and is associated with clinical attachment loss and supporting bone destruction.
More severe destruction can produce deeper pockets, mobility, bite changes and tooth loss or need for extraction.
Early gum inflammation can often be reversed. Periodontitis has already caused loss of the tissues that support teeth, so treatment focuses on controlling disease, preserving teeth and reducing progression.
Periodontal disease, commonly called gum disease, is a group of inflammatory conditions that affect the gums and the structures supporting the teeth. Dental plaque is central to the disease process. When plaque is not removed effectively, it can accumulate around the gumline and harden into tartar or calculus. The bacterial biofilm and the body's inflammatory response can damage the soft tissues and, in periodontitis, the supporting bone.
The National Institute of Dental and Craniofacial Research explains that gum disease often begins with swollen, red or bleeding gums and can progress to destruction of the bone around teeth. Periodontitis is also an important public-health problem: NIDCR reports that roughly 2 in 5 U.S. adults age 30 or older are affected by some form of periodontal disease.
The words gingivitis and periodontitis are sometimes used interchangeably, but they describe different levels of periodontal disease. Gingivitis is limited to inflammation of the gingiva. Periodontitis includes loss of periodontal attachment and supporting bone. That distinction changes both prognosis and treatment.
| Feature | Gingivitis | Periodontitis |
|---|---|---|
| Main problem | Inflammation of the gums. | Inflammation plus destruction of supporting attachment and bone. |
| Bleeding | Common with brushing, flossing or probing. | May occur, but some people have few visible symptoms. |
| Bone loss | No periodontitis-related bone loss. | Bone loss is part of the disease process. |
| Reversibility | Often reversible with professional care and effective plaque control. | Existing attachment and bone loss are not simply reversed by brushing; disease must be professionally managed. |
| Treatment | Professional cleaning plus improved daily oral hygiene and risk-factor control. | May require scaling and root planing, periodontal maintenance, adjunctive therapy and sometimes surgery. |
The CDC gum disease facts describe gingivitis as the mildest type and note that periodontitis involves bone loss around the teeth and can be managed and slowed with professional treatment.
Periodontal disease can be surprisingly quiet. Some people notice bleeding or bad breath early, while others do not realize there is significant attachment or bone loss until a dental examination finds deep pockets or tooth mobility. Do not use pain as the only signal that something is wrong.
Seek prompt dental care for rapidly increasing swelling, pus, fever, severe pain, facial swelling, difficulty swallowing or breathing, or a tooth that suddenly becomes very loose. Those symptoms can signal an acute dental infection or another urgent condition that needs direct evaluation.
Plaque is a sticky biofilm that continually forms on teeth. If it is not disrupted by brushing and interdental cleaning, plaque can accumulate along and below the gumline. Minerals in saliva can harden deposits into tartar, which cannot be removed effectively with a toothbrush. The combination of bacterial challenge and the body's inflammatory response damages periodontal tissues in susceptible people.
Persistent plaque at the gumline is the main local driver of gingival inflammation and periodontal infection.
Hardened deposits create a rough surface that retains more biofilm and require professional removal.
Periodontitis reflects both microbial challenge and the body's inflammatory response, which can damage attachment and supporting bone.
Tobacco substantially raises risk and can reduce healing and response to periodontal treatment.
Diabetes, particularly when poorly controlled, is associated with greater periodontal risk and severity.
Some people are more susceptible even with similar plaque exposure, which is one reason risk differs between patients.
Modern periodontitis classification uses a multidimensional staging and grading framework developed by the American Academy of Periodontology and European Federation of Periodontology. Stage describes severity and complexity of management, while grade estimates the likely rate of progression and incorporates risk information.
| Stage | General Meaning | What A Clinician Considers |
|---|---|---|
| Stage I | Initial periodontitis. | Early attachment or bone loss with relatively low treatment complexity. |
| Stage II | Moderate periodontitis. | More established attachment or radiographic bone loss, still without the major complexity features seen in advanced stages. |
| Stage III | Severe periodontitis with potential for additional tooth loss. | Greater tissue destruction and complexity factors such as deeper pockets, vertical bone loss, furcation involvement or prior tooth loss from periodontitis. |
| Stage IV | Advanced periodontitis with substantial functional complexity. | Severe destruction plus issues that can affect chewing, bite stability, tooth migration or the ability to maintain a functional dentition. |
The stage is not assigned from pocket depth alone. A clinician considers clinical attachment loss, radiographic bone loss, tooth loss due to periodontitis and case-complexity features. Read the AAP/EFP periodontal classification overview.
Grading adds a forward-looking risk layer to staging. It helps the clinician estimate how rapidly disease may progress and whether risk modifiers suggest a more aggressive course. The grade may be adjusted as more information becomes available over time.
Represents evidence consistent with a slower rate of progression. It is not a guarantee that disease will remain stable without treatment and maintenance.
Represents a moderate or expected rate of progression and is often used when findings do not clearly fit a slower or rapid-progressing pattern.
Represents a higher risk or faster progression pattern. Smoking and diabetes control are among the risk modifiers considered in grading.
Stage and grade answer different questions: stage asks “How much damage and complexity are present now?” Grade asks “How quickly is this likely to progress, given the available evidence and risk factors?”
Periodontal diagnosis combines visual findings with measurements and, when clinically indicated, dental imaging. A periodontal evaluation is more than a quick look at whether the gums are pink or bleeding.
The dental team reviews tobacco use, diabetes, medications, symptoms, previous periodontal treatment and other health factors.
A small probe measures the spaces around teeth and records bleeding, recession and other clinical findings.
The clinician checks mobility, tooth position, restorations, plaque-retentive factors and how the teeth contact.
Dental X-rays may be used when needed to evaluate supporting bone levels and patterns of loss.
NIDCR notes that healthy periodontal pockets are usually around 1 to 3 mm, while deeper pockets can signal periodontal disease. Pocket depth is only one piece of diagnosis; attachment loss, bleeding, recession, bone levels and disease history also matter.
The American Academy of Periodontology recommends a comprehensive periodontal evaluation to assess teeth, plaque, gums, bite, bone structure and risk factors.
The goal of periodontal treatment is to control infection and inflammation, reduce or eliminate sites that retain disease-causing biofilm, stabilize teeth where possible and create conditions that the patient can maintain. Treatment depends on stage, grade, pocket depth, anatomy, smoking, diabetes control, tooth prognosis and previous response to care.
Professional coaching focuses on brushing, interdental cleaning and devices that fit the patient's anatomy and dexterity.
Deep cleaning removes plaque and calculus from above and below the gumline and cleans root surfaces.
After healing, the dental team reassesses pocket depths, bleeding and areas that remain difficult to maintain.
Selected advanced cases may need surgical access, pocket reduction or other procedures when nonsurgical therapy is not enough.
Bone grafts, membranes or biologic materials may be used in selected defects to support regeneration of periodontal tissues.
Long-term maintenance is essential because treated periodontitis can recur if plaque, pockets and risk factors are not controlled.
The American Dental Association's evidence-based guideline supports scaling and root planing as the initial nonsurgical treatment for periodontitis, with adjuncts considered selectively rather than automatically.
Scaling and root planing (SRP) is often called a “deep cleaning,” but it is different from a routine prophylaxis. Scaling removes plaque and calculus from tooth surfaces above and below the gumline. Root planing cleans and smooths contaminated root surfaces so the tissues can heal and the patient can maintain the area more effectively.
The dentist or hygienist removes hardened calculus and bacterial deposits from tooth and root surfaces, including areas inside periodontal pockets.
The root surface is carefully debrided and smoothed as part of creating a healthier environment for gum tissue healing and reattachment.
The ADA's scaling and root planing patient guide explains that treatment may take more than one visit and may use local anesthetic. Follow-up is important because persistent deep pockets may need additional therapy.
Many patients respond well to nonsurgical therapy, but some periodontal defects remain too deep or anatomically complex to maintain predictably. Periodontal surgery can improve access to root surfaces, reduce pocket depth, correct certain gum defects or attempt to regenerate lost support in selected sites.
| Procedure | Purpose | Typical Reason It Is Considered |
|---|---|---|
| Pocket reduction surgery | Improve access for debridement and reduce deep periodontal pockets. | Persistent deep disease after nonsurgical therapy. |
| Periodontal regeneration | Use grafts, membranes or biologic agents to encourage regeneration in selected defects. | Specific bone defects with anatomy suitable for regenerative treatment. |
| Gum grafting | Increase soft-tissue coverage or thickness around selected teeth. | Recession, exposed roots or soft-tissue deficiency. |
| Extraction | Remove a tooth that cannot be maintained predictably. | Advanced support loss, recurrent infection, severe mobility or poor prognosis. |
If regenerative bone treatment becomes part of your plan, the Dental Bone Graft Cost Calculator can help you organize cost assumptions, but only your periodontist can determine whether grafting is clinically appropriate.
Periodontal treatment cost varies widely because “gum disease treatment” can mean anything from a professional cleaning for gingivitis to full-mouth scaling and root planing, periodontal surgery, regeneration, extraction or long-term periodontal maintenance. The number of quadrants treated, pocket depth, anesthesia, imaging, specialist fees and geographic location all affect price.
As a current U.S. planning reference, CareCredit lists an average of about $242 per quadrant for scaling and root planing and about $167 for periodontal maintenance cleaning. Its gum-disease guide also describes broader published ranges for periodontal treatments. These are consumer cost benchmarks rather than treatment quotes.
| Cost Area | Current Planning Reference | What Can Change The Fee |
|---|---|---|
| Scaling & root planing | CareCredit average about $242 per quadrant. | Number of teeth/quadrants, local anesthesia, disease severity, provider and location. |
| Periodontal maintenance | CareCredit average about $167 per visit. | Visit complexity, frequency, local fees and insurance network. |
| Periodontal surgery | No single useful nationwide fee for every surgery type. | Procedure, number of sites, graft material, sedation, specialist and defect complexity. |
| Tooth replacement after loss | Separate restorative cost. | Bridge, implant or removable option, bone availability and number of missing teeth. |
Do not compare a routine cleaning price with a periodontal treatment quote. Prophylaxis, scaling and root planing, periodontal maintenance and periodontal surgery are different services with different goals and billing codes.
For a current consumer benchmark, see CareCredit's dental procedure cost list.
Many dental plans provide benefits for periodontal services, but coverage is highly contract-specific. Scaling and root planing may be subject to documentation rules, quadrant limits, frequency restrictions, deductibles, coinsurance and annual maximums. Periodontal surgery and regenerative procedures can have additional limitations or preauthorization requirements.
The ADA overview of dental plan benefits and limitations explains common issues such as annual maximums and managed-care cost controls.
After periodontitis has been treated, many patients transition to periodontal maintenance instead of returning to a standard preventive cleaning schedule. Periodontal maintenance is designed for a patient with a history of periodontal disease and may include deeper debridement of selected sites, reassessment of pockets and inflammation, and closer monitoring for recurrence.
Designed primarily for a patient without active periodontitis or a history requiring periodontal maintenance. It focuses on supragingival plaque and calculus removal and prevention.
Designed for a patient after periodontal therapy. The visit supports disease control and may involve subgingival instrumentation, probing and focused management of recurrent inflammation.
Maintenance intervals are individualized. A patient with smoking, poorly controlled diabetes, residual deep pockets, heavy plaque accumulation or previous rapid progression may need closer follow-up than someone with stable tissues and excellent home care.
Diabetes and periodontal disease have an important two-way clinical relationship. People with diabetes—especially when blood glucose is not well controlled—can have greater periodontal risk and severity. Periodontal inflammation can also complicate overall health management, which is one reason dental and medical teams may need to share relevant information.
If you have diabetes, tell your dental professional about your diagnosis, medications, recent glucose control and any healing problems. Do not stop or change diabetes medication for dental treatment without instructions from the clinician who manages it.
For periodontal grading: the AAP/EFP framework specifically considers diabetes control and smoking among risk modifiers when a clinician estimates progression risk.
Smoking is one of the strongest modifiable risk factors for periodontitis. NIDCR identifies tobacco use as a major risk factor and notes that smoking can make treatment less successful. Tobacco can affect blood flow, immune response and healing, and smokers may show less gum bleeding than expected despite significant disease.
Vaping is not a proven safe substitute for periodontal health. If you use cigarettes, smokeless tobacco, nicotine products or vaping devices, tell your dentist or periodontist so the risk assessment reflects your real exposure and you can discuss cessation support.
People with natural-tooth periodontitis can also develop inflammatory disease around dental implants. The 2017 AAP/EFP classification formally includes peri-implant mucositis and peri-implantitis. Peri-implant mucositis involves inflammation around an implant without the progressive supporting bone loss that defines peri-implantitis. Peri-implantitis includes inflammation plus progressive loss of supporting bone.
A history of periodontitis does not automatically rule out implants, but disease control, maintenance and risk-factor management are essential. If teeth are lost to advanced periodontal disease, replacement planning should happen only after the periodontal condition and prognosis of remaining teeth are carefully assessed.
A bridge or implant can replace a missing tooth, but it does not treat the underlying periodontal infection. Stabilizing gum disease and establishing a maintainable oral environment come first.
Prevention focuses on controlling plaque biofilm, reducing tobacco exposure, managing systemic risk factors and attending dental visits often enough for your personal risk. Home care cannot remove hardened calculus, but it can dramatically reduce the daily plaque burden that drives inflammation.
Ask whether you have gingivitis, localized or generalized periodontitis, and what findings support that diagnosis.
If you have periodontitis, ask what stage and grade were assigned and which findings drove the classification.
Ask whether any teeth have mobility, severe bone loss, furcation involvement or a guarded prognosis.
Clarify whether you need oral-hygiene therapy, scaling and root planing, extraction, surgery or specialist referral.
Ask what changes in bleeding, pocket depths, inflammation or plaque control will be reviewed after therapy.
Get a personalized recall schedule and understand which risk factors might make that interval shorter or longer.
This page uses public information from U.S. government and professional dental organizations for disease definitions, diagnosis concepts, staging and treatment principles. Cost figures are presented separately as consumer planning benchmarks and should not be confused with clinical guidelines or guaranteed local fees.
Used for disease overview, causes, symptoms, periodontal probing, treatment and prevention guidance.
Used for the distinction between gingivitis and periodontitis and general public-health framing.
Used for Stage I–IV and Grade A–C classification concepts.
Used for evidence-based treatment framing around scaling and root planing.
Used only for current consumer cost benchmarks such as average scaling and root planing and periodontal maintenance fees.
Educational use only: This page does not diagnose periodontal disease or select treatment. Periodontal staging, grading and prognosis require a direct clinical examination by a dentist or periodontist.
Common questions about gum disease symptoms, stages, deep cleaning, treatment, insurance and long-term maintenance.
Periodontal disease is infection and inflammation affecting the gums and other tissues that support the teeth. Gingivitis is the mildest form; periodontitis is more destructive and can involve attachment and bone loss.
No. Gingivitis is inflammation limited to the gums and can often be reversed with professional care and effective daily plaque control. Periodontitis involves deeper supporting tissues and bone and requires professional treatment and long-term maintenance.
Possible signs include red or swollen gums, bleeding, gum recession, persistent bad breath, tenderness, sensitivity, pain when chewing, loose teeth, tooth movement or pus around the gums. Some people have few obvious symptoms.
Yes. Periodontal disease can progress with little pain, which is why periodontal probing, dental examinations and appropriate imaging are important when risk or clinical findings suggest disease.
Plaque bacteria are central to the disease process. If plaque is not removed, it can harden into tartar and contribute to inflammation. Smoking, diabetes, genetics, age and other health or behavioral factors can change risk and progression.
A dental professional may review medical and tobacco history, inspect the gums, measure pocket depths with a periodontal probe, check attachment and tooth mobility, and use dental X-rays when needed to assess bone levels.
Pocket depth is one part of a periodontal assessment. NIDCR notes that healthy pockets are usually about 1 to 3 millimeters; deeper pockets can be a sign of periodontal disease. Diagnosis also considers bleeding, attachment loss, bone levels and other findings.
The AAP/EFP staging system ranges from Stage I to Stage IV. Stage reflects disease severity and the complexity of management. A clinician assigns the stage after considering attachment or bone loss, tooth loss from periodontitis and complexity factors.
Grade estimates the likely rate of periodontitis progression and considers risk modifiers. In the AAP/EFP framework, Grade A suggests slower progression, Grade B moderate progression and Grade C faster progression.
Early gingivitis can often be reversed. Established periodontitis is generally managed rather than simply erased; treatment aims to control infection and inflammation, stabilize the tissues, preserve teeth and reduce future progression.
Scaling and root planing is a deep cleaning below the gumline. Scaling removes plaque and calculus above and below the gumline, while root planing smooths contaminated root surfaces so the tissues can heal more effectively.
Not everyone does. Many cases begin with nonsurgical treatment. More advanced or complex disease may require periodontal surgery, regenerative procedures, gum grafting or extraction of teeth that cannot be maintained. A periodontist determines whether surgery is appropriate.
Yes. NIDCR identifies smoking and tobacco use as major risk factors. Tobacco can also impair healing and make periodontal treatment less successful.
Diabetes is associated with greater periodontal risk and severity, particularly when blood glucose is poorly controlled. Your dentist or periodontist should know your diabetes history and current management.
The schedule is individualized. After active periodontal therapy, many patients need periodontal maintenance more often than routine preventive cleanings, depending on disease history, pocket depths, plaque control, smoking, diabetes and recurrence risk.
Coverage varies. Plans may apply deductibles, coinsurance, frequency limits, documentation requirements, annual maximums and network rules. Ask your insurer and dental office for a pre-treatment estimate when possible.
Advanced periodontal tissue and bone loss should not be expected to regenerate simply with home brushing. In selected cases, periodontal regenerative procedures may be used, but candidacy depends on the defect and clinical situation.
Yes. Periodontitis can destroy the supporting tissues and bone around teeth. In advanced disease, teeth may loosen, shift or need extraction.
No. This is educational information. A dentist or periodontist must examine your mouth to diagnose periodontal disease, determine stage and grade, and recommend treatment.
If periodontal disease leads to regenerative treatment or tooth-replacement planning, these ToothCalculator.com tools can help you organize possible costs. They are budgeting tools, not treatment recommendations.
If you have persistent bleeding, recession, bad breath, loose teeth or a history of gum disease, schedule a dental or periodontal evaluation. Earlier diagnosis usually gives your care team more options for controlling disease and preserving teeth.
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