Diagnosing and Treating Gum Disease

Learn how gum disease develops, how dentists spot it, and the professional treatments available to restore your oral health.

By Garret Merkley · Explainer · Jul 4, 2026

Branched from Common Dental X-ray Types and Why They Matter for Your Health

Quick take

Gum disease starts with plaque, leading to inflammation (gingivitis) and potentially bone loss (periodontitis).
Diagnosis involves visual checks, measuring gum pockets, and X-rays to assess bone health.
Treatment ranges from deep cleanings (scaling and root planing) to surgical interventions for advanced cases.
Early detection and consistent oral hygiene are crucial to prevent progression and protect overall health.

Gum disease, also known as periodontal disease, is an infection and inflammation of the tissues surrounding and supporting your teeth. It begins when bacteria in plaque build up on the teeth and gums, irritating the gum tissue and potentially leading to serious damage if left untreated.

How Gum Disease Starts and Progresses

Gum disease typically starts as gingivitis, the mildest form. Plaque, a sticky film of bacteria, constantly forms on your teeth. If not removed by brushing and flossing, plaque hardens into tartar (calculus), which irritates the gums, causing them to become red, swollen, and prone to bleeding. At this stage, gingivitis is reversible with good oral hygiene and professional cleanings.

Without intervention, gingivitis can advance to periodontitis. In this more severe form, the gums pull away from the teeth, forming pockets that become infected. The body's immune response, combined with bacterial toxins, begins to break down the bone and connective tissue that hold teeth in place. As the disease progresses, these pockets deepen, and more gum tissue and bone are destroyed, eventually leading to tooth loosening and loss.

How Dentists Diagnose Gum Disease

Diagnosing gum disease involves a thorough examination by your dentist or periodontist. They look for several key indicators:

**Visual Inspection:** Checking for red, swollen, or bleeding gums; gum recession; and loose teeth.
**Pocket Depth Measurement:** A tiny ruler called a periodontal probe is used to measure the depth of the sulcus (the space between your tooth and gum). Healthy gums have shallow pockets (1-3 millimeters). Deeper pockets (4 millimeters or more) can indicate gum disease.
**Dental X-rays:** These are crucial for revealing bone loss around the teeth, a hallmark of periodontitis. X-rays help determine the extent of bone damage and guide treatment decisions.
**Review of Medical History:** Certain medical conditions (like diabetes) and medications can affect gum health.

Treating Gum Disease

Treatment depends on the severity of the disease. The primary goal is to remove plaque and tartar and reduce inflammation.

**Professional Dental Cleaning (Prophylaxis):** For gingivitis, a regular cleaning can remove plaque and tartar above and below the gumline.
**Scaling and Root Planing:** This is a non-surgical deep cleaning for periodontitis. Scaling removes tartar and bacteria from below the gumline, while root planing smooths the tooth root surfaces to remove bacterial toxins and make it harder for plaque to reattach.
**Medications:** Antibiotic gels, chips, or oral antibiotics may be used in conjunction with scaling and root planing to control infection.
**Surgical Treatments:** For advanced periodontitis, surgical options like flap surgery (to clean deep pockets), bone grafts (to regenerate lost bone), or soft tissue grafts (to cover exposed roots) may be necessary. Your dentist may refer you to a periodontist, a gum specialist, for these procedures.

Following professional treatment, consistent daily oral hygiene, including brushing twice a day and flossing daily, is essential to prevent recurrence. Regular follow-up appointments with your dentist are also crucial to monitor gum health.

Why and When Gum Disease Matters

Gum disease matters because it's not just about your mouth. Chronic inflammation from periodontitis has been linked to other serious health conditions, including heart disease, stroke, diabetes complications, and even adverse pregnancy outcomes. It can also cause persistent bad breath, painful chewing, and eventually lead to tooth loss. Early diagnosis and treatment are vital to halt the progression of the disease, save your teeth, and protect your overall systemic health. The best time to address gum disease is at its earliest stages, when it's most treatable and reversible.

Is gum disease curable?

Gingivitis, the early stage, is fully reversible with professional cleaning and good home care. Periodontitis, the more advanced stage, cannot be fully cured, but it can be effectively managed and controlled to prevent further damage and tooth loss.

Can I treat gum disease at home?

While excellent daily oral hygiene (brushing and flossing) is critical for prevention and management, it cannot remove hardened tartar or treat deep infections. Professional dental care is essential for diagnosing and treating gum disease, especially periodontitis.

What are the earliest signs of gum disease?

The earliest signs often include red, swollen, or tender gums, and gums that bleed easily when brushing or flossing. Persistent bad breath can also be an early indicator.

How often should I see a dentist for gum health?

Most people should visit the dentist for a check-up and cleaning every six months. If you have signs of gum disease or risk factors, your dentist might recommend more frequent visits, such as every three or four months.