Gingivitis vs. Periodontitis

Key Facts

• Gingivitis is the early, reversible stage of gum disease
• Periodontitis involves irreversible bone loss around teeth
• Nearly half of adults over 30 have some form of periodontitis
• Good oral hygiene can reverse gingivitis but cannot reverse periodontitis

What Is Gingivitis?

Gingivitis is inflammation of the gums caused by plaque buildup along the gumline. Symptoms include redness, swelling, and bleeding during brushing or flossing. At this stage, the bone and connective tissue that hold teeth in place are not yet affected. With improved oral hygiene and professional cleanings, gingivitis can be fully reversed.

What Is Periodontitis?

When gingivitis is left untreated, it can progress to periodontitis. In this stage, the inner layer of the gum and bone pull away from the teeth, forming pockets that collect debris and become infected. The immune response to the bacteria, combined with toxins, begins to break down the bone and connective tissue. Teeth may loosen or shift, and without treatment, tooth loss can occur.

Key Differences at a Glance

The primary difference is reversibility: gingivitis can be resolved with proper care, while periodontitis requires ongoing professional management. Gingivitis typically presents as bleeding gums without pain, while periodontitis may include receding gums, persistent bad breath, loose teeth, and changes in bite alignment. X-rays can reveal bone loss in periodontitis that isn't visible in gingivitis.

Why Early Detection Matters

Catching gum disease at the gingivitis stage is crucial because it's the only point where full reversal is possible. Regular dental checkups, consistent brushing and flossing, and attention to warning signs like bleeding gums can prevent the progression to periodontitis. Research also links periodontitis to systemic conditions including cardiovascular disease and diabetes complications.