Gum Disease
TreatmentPeriodontics

Gum Disease

Gum disease is an infection of the gum tissue and supporting bone that hold your teeth in place. In its early form it can often be reversed with good oral hygiene and a professional cleaning. Left untreated, periodontal disease can lead to tooth loss.[7][9]

7 min readMedically reviewed by MSD Clinical Editorial TeamLast updated June 22, 2026

Key Takeaways

  • Early gum disease is often reversible. Gingivitis, the mildest form of gum disease, can usually be controlled before it becomes harder-to-treat periodontitis.[7][4]
  • Plaque is the main cause. Poor oral hygiene lets bacteria build up along the gum line, and known risk factors include smoking and diabetes.[7][6]
  • Untreated periodontal disease is a leading cause of tooth loss in adults because it slowly destroys the bone around the teeth.[9][7]
  • Daily interdental cleaning plus brushing can help reduce gum inflammation and bleeding gums when used consistently.[5]
  • Nonsurgical care comes first. A step-wise approach starting with scaling and root planing is the standard way to treat gum disease.[4]
  • Advanced gum disease may need surgery, such as guided tissue regeneration to rebuild bone lost in deep defects.[8][1]

Understanding Gum Disease

Gum disease is a bacterial infection of the gum tissue and the bone that supports your teeth. This guide explains what causes it, how it is treated, and when to see a specialist.

Gum disease, also called periodontal disease, is one of the most common oral health problems in adults. It begins quietly. Many people develop gum disease without pain or obvious signs until it is advanced.[7]

This guide is for anyone who has been told they have gum disease, who has noticed bleeding gums, or who wants to prevent periodontal disease. It covers the stages, the warning signs, treatment options, costs, and the difference between care from a general dentist and a periodontist. You can learn more about specialist care on the periodontics page.

Periodontics is the dental specialty focused on the gum tissue and bone around teeth. A periodontist treats moderate and advanced gum disease that a general dentist may refer out.

What Gum Disease Is and Why It Happens

Gum disease starts when plaque, a sticky film of bacteria, builds up along the gum line. The bacteria irritate the gum tissue and trigger inflammation that can spread to the bone.[7]

The Two Main Stages

Gum disease has two broad stages. The mild form is gingivitis. The advanced form is periodontitis, where the infection damages the bone and the fibers that hold teeth in place.[7]

Gingivitis is early gum disease. The gums may look red and swollen and bleed when you brush. At this point the damage is usually reversible with better oral hygiene and a professional cleaning.[9]

Periodontitis is advanced gum disease. Pockets form between the teeth and gums, bone is lost, and teeth can become loose or sensitive teeth. This form of gum disease cannot be fully reversed, but it can be controlled and slowed with treatment.[4][7]

Causes and Risk Factors

Poor oral hygiene is the leading driver of gum disease because it allows plaque to sit on the teeth and gum line. But several risk factors raise the odds even in people who brush.[7]

Smoking is one of the strongest risk factors for periodontal disease, and it also makes treatment less effective. Researchers are studying whether switching away from combustible tobacco changes oral health outcomes.[7][2]

Diabetes is another major risk factor. People with diabetes are more likely to develop gum disease, and gum disease can in turn make blood sugar harder to manage.[6][7] Other risk factors include genetics, certain medications, hormonal changes, and a weakened immune system.

Signs and Symptoms

The most common early sign of gum disease is bleeding gums during brushing or flossing. Other signs include red, swollen, or tender gum tissue and bad breath that does not go away.[9]

As periodontal gum disease advances, you may notice gums pulling away from the teeth, loose or sensitive teeth, a change in how your teeth fit together, or pus along the gum line. Because periodontal disease is often painless, regular dental checkups are the most reliable way to catch it early.[7][9]

What to Know Before Treatment

Before you treat gum disease, it helps to know who is at risk, how prevention works, and what daily habits support disease control. Prevention and treatment rely on the same core steps.[10]

Prevention and Home Care

The best way to prevent periodontal disease is to remove plaque every day and see a dentist regularly. Brushing twice a day and cleaning between the teeth are the foundation of good oral hygiene.[10]

Cleaning between the teeth matters because a toothbrush cannot reach the gum line between teeth. Research on interdental cleaning devices, such as floss and interdental brushes used in addition to toothbrushing, suggests they can reduce gum inflammation and bleeding gums, though the certainty of the evidence varies.[5]

  • Brush twice daily along the gum line to remove plaque from the gum tissue.
  • Clean between teeth daily with floss or interdental brushes.[5]
  • See a dentist for routine cleanings, which remove hardened plaque you cannot brush away.[10]
  • Quit smoking, since it is a leading risk factor for periodontal disease.[7]
  • Manage conditions like diabetes that raise the risk of gum disease.[6]

Age and Timing

Gum disease can affect anyone, but it becomes more common with age. Adults are the main group affected because plaque and risk factors add up over time.[7]

Timing matters. The earlier gum disease is found, the simpler the treatment. Early gum disease may need only a cleaning and better home care, while advanced gum disease can require repeated visits and specialist treatment.[4]

What to Expect During Treatment

Treatment for gum disease follows a step-wise plan. It starts with the least invasive options and moves to surgery only if needed. The goal is to stop the infection and keep your teeth.[4]

Diagnosis

Your dentist or periodontist examines the gum tissue, measures the depth of the pockets around each tooth, and may take X-rays to check the bone. These measurements show how far the periodontal disease has progressed and guide the treatment plan.[7][9]

Nonsurgical Treatment

The first step to treat gum disease is professional cleaning, including scaling and root planing. Scaling removes plaque and hardened deposits from above and below the gum line, and root planing smooths the tooth roots so the gum tissue can reattach.[4]

Many cases of periodontal disease respond well to this nonsurgical care combined with improved home cleaning. Your provider may schedule follow-up visits to recheck the pockets and confirm the infection is under control.[4]

Surgical Treatment

If deep pockets or bone loss remain after nonsurgical care, surgery may be the next step for advanced gum disease. Flap surgery lets the periodontist clean the roots directly, and regenerative procedures aim to rebuild lost bone and tissue.[4][1]

Guided tissue regeneration is one regenerative option for deep, infra-bony defects. It uses a barrier and sometimes grafting materials to help the body regrow support around the tooth, though results vary by case.[8][1]

Cost Factors

The cost to treat gum disease depends on how advanced it is. A routine cleaning for early gum disease costs far less than surgery for advanced periodontal disease. Costs vary by location, provider, and case complexity.

Nonsurgical treatment such as scaling and root planing is usually priced per section of the mouth, so a full-mouth case costs more than a single area. Surgical and regenerative procedures, including guided tissue regeneration, are more involved and cost more.[4][8]

Dental insurance often covers part of periodontal treatment, especially nonsurgical care, but coverage and limits differ by plan. Ask your provider for a written estimate and check with your insurer before treatment begins. Because pricing changes by region and case, no single figure applies to everyone.

When to See a Periodontist

See a periodontist when gum disease is moderate to advanced, when it does not improve after standard care, or when you have loose or sensitive teeth and bone loss. A general dentist handles early gum disease and prevention.[4][9]

Your general dentist can treat gingivitis and mild periodontal disease with cleanings and guidance on oral hygiene. They will often refer you to a periodontist when pockets are deep, when surgery may be needed, or when complex risk factors are involved.[4]

You should not wait for pain to seek care, because periodontal disease is usually painless until it is advanced. If you notice persistent bleeding gums, gums pulling away from the teeth, or teeth that feel loose, ask for an evaluation. Early specialist care gives the best chance to save teeth and prevent further tooth loss.[7][9]

Find a Periodontist Near You

If you have signs of gum disease or have been referred for periodontal treatment, a periodontist can evaluate your gum tissue and bone and build a plan to fit your case. Learn more about specialist care on the periodontics page, then search the directory to find a periodontist near you who can help you treat gum disease and protect your oral health.

Search Periodontists in Your Area

Frequently Asked Questions

Can gum disease be reversed?

Early gum disease, called gingivitis, can usually be reversed with better oral hygiene and a professional cleaning. Once gum disease advances to periodontitis with bone loss, it cannot be fully reversed, but it can be controlled and slowed with treatment.[7][4]

What is the difference between gingivitis and periodontitis?

Gingivitis is early gum disease that affects only the gum tissue and is reversible. Periodontitis is advanced gum disease that damages the bone holding the teeth, which can lead to loose or sensitive teeth and tooth loss.[7]

How do dentists treat gum disease?

Treatment follows a step-wise plan. The first step is professional cleaning, including scaling and root planing to remove plaque below the gum line. If deep pockets remain, surgery such as guided tissue regeneration may be used for advanced gum disease.[4][8]

What are the main risk factors for periodontal disease?

Poor oral hygiene is the main cause. Other risk factors include smoking, diabetes, genetics, certain medications, and a weakened immune system. Smoking and diabetes are among the strongest risk factors for periodontal disease.[7][6]

Does flossing help prevent gum disease?

Cleaning between the teeth reaches plaque a toothbrush cannot. Research on interdental cleaning devices used along with toothbrushing suggests they can reduce gum inflammation and bleeding gums, which supports efforts to prevent periodontal disease.[5]

Is gum disease linked to diabetes?

Yes. People with diabetes are more likely to develop gum disease, and gum disease can make blood sugar harder to control. Managing diabetes is an important part of protecting your oral health.[6][7]

Sources

  1. 1.Menhadji P et al. The influence of flap design on the relevance of biomaterials in regenerative periodontal surgery. J Periodontol. 2026;97(4):697-719.
  2. 2.Conte G et al. Changes in Oral Health and Dental Esthetic in Smokers Switching to Combustion-Free Nicotine Alternatives: Protocol for a Multicenter and Prospective Randomized Controlled Trial. JMIR Res Protoc. 2024;13:e53222.
  3. 4.Sanz M et al. Treatment of stage I-III periodontitis-The EFP S3 level clinical practice guideline. J Clin Periodontol. 2020;47 Suppl 22(Suppl 22):4-60.
  4. 5.Worthington HV et al. Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling periodontal diseases and dental caries. Cochrane Database Syst Rev. 2019;4(4):CD012018.
  5. 6.Poudel P et al. Oral health knowledge, attitudes and care practices of people with diabetes: a systematic review. BMC Public Health. 2018;18(1):577.
  6. 7.Kinane DF et al. Periodontal diseases. Nat Rev Dis Primers. 2017;3:17038.
  7. 8.Needleman IG et al. Guided tissue regeneration for periodontal infra-bony defects. Cochrane Database Syst Rev. 2006;(2):CD001724.
  8. 9.American Academy of Periodontology. Gum Disease Information.
  9. 10.American Dental Association. MouthHealthy Patient Resources.

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