How Periodontal Disease Is Diagnosed

Understanding how gum disease is diagnosed is essential for protecting your oral health. Periodontal evaluations are a regular part of your dental checkup, allowing early detection of any signs of gum problems before they become more serious.

The Role of Dental Checkups in Early Detection

Routine dental visits do more than just check for cavities—they’re also crucial for identifying gum disease in its earliest stages. Your dentist or dental hygienist performs a periodontal exam as part of your standard checkup to look for signs of gum inflammation, tissue damage, or bone loss.

What Happens During a Periodontal Examination

During the exam, a small instrument called a periodontal probe is used to gently measure the depth of the space (called a sulcus) between your teeth and gums. In healthy gums, this pocket measures three millimeters or less and doesn’t bleed.
If the probe detects deeper pockets, it could be a sign of gum disease. As the condition worsens, these pockets often become deeper, indicating that bacteria may be damaging the surrounding tissue and bone.

Interpreting the Findings: Categories of Diagnosis

To make an accurate diagnosis, your dentist or hygienist looks at a combination of factors including:

These indicators help determine how far the disease has progressed and guide treatment recommendations.

Understanding the Stages of Periodontal Disease

Periodontal disease doesn’t happen overnight. It develops in stages, each with distinct characteristics:

This is the earliest stage. Plaque builds up on the teeth, irritating the gums and causing redness, tenderness, and bleeding. At this point, there’s no permanent damage, and the condition is reversible with proper care.
If gingivitis isn’t treated, the plaque hardens into tartar, and the gums start pulling away from the teeth. This creates deeper pockets that can trap bacteria and pus. Gums become more inflamed, bleeding increases, and mild to moderate bone loss may occur.
At this stage, the destruction extends to the bone, gums, and the connective tissues that hold teeth in place. Teeth may loosen significantly and can eventually fall out if no treatment is done. Moderate to severe bone loss is typically present.
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