Periodontitis: What It Is, Its Stages, and Why You Can Control It Even If You Can't Fully Reverse It

What periodontitis is, in one sentence

Periodontitis is a chronic infection of the tissues that hold your teeth in place: the gum, the ligament, and above all the bone. Unlike gingivitis (surface inflammation of the gum that does reverse once plaque is controlled), periodontitis destroys supporting structure. That lost bone doesn't come back on its own, but the disease can be stopped and controlled with treatment and follow-up.

To put it plainly: gingivitis is the reversible warning sign; periodontitis is the stage where structural damage has already begun, and the sooner it's addressed, the better.

From gingivitis to periodontitis: how it progresses

It usually starts with bacterial plaque building up along the gumline. If it isn't removed well, it hardens into tartar, the gum becomes inflamed (gingivitis), and bacteria work their way underneath. When the inflammation reaches the bone, periodontitis sets in.

It's often described in stages, based on how much support has been lost:

• Early: shallow periodontal pockets and mild bone loss. Often silent.
• Moderate: pockets deepen, bleeding becomes more frequent, and some gum recession appears.
• Advanced: significant bone loss, loose teeth, and a real risk of losing them.

Signs worth not ignoring: gums that bleed when you brush, persistent bad breath, teeth that look "longer," sensitivity, or the feeling that a tooth is moving.

Why the damage isn't fully reversible (but is controllable)

This is the crucial part, and the one that causes the most confusion. Inflamed gum can calm down and look healthy again. Lost bone, however, doesn't simply grow back. That's why periodontitis isn't "cured" in the sense of erasing the damage already done.

What treatment does achieve is genuinely valuable:

• Stopping the progression so you don't keep losing support.
• Reducing inflammation and pocket depth, making everything easier to keep clean.
• Keeping your own teeth for many years, in many cases.

In a way it behaves like a well-managed chronic condition: it doesn't disappear, but it stays stable and under control.

How periodontitis is treated

Treatment is tailored to each person after a diagnosis with probing and X-rays. Broadly, it includes:

1. Basic phase (scaling and root planing): a deep clean below the gumline, under local anaesthetic, to remove tartar and bacteria from the roots. With anaesthetic you won't feel pain during the procedure.
2. Reassessment: a few weeks later we check how the gum has responded and whether the pockets have shrunk.
3. Periodontal surgery (when needed): for deep pockets that can't be cleaned properly, surgical techniques may be used to reach the root better or, in selected cases, to try to regenerate tissue.

Not every case needs surgery. Many stabilise with the basic phase plus good maintenance.

Maintenance: the part that actually holds the result together

Here's the most honest message of this article: treatment doesn't end the day of the deep clean. Periodontitis tends to return if bacteria re-colonise, so periodontal maintenance is what preserves everything you've gained.

That means:

• Regular check-ups and cleanings (often every few months, depending on your case).
• Careful daily hygiene, including cleaning between the teeth.
• Managing risk factors, especially smoking, which significantly worsens the outlook.

Without that follow-up, the risk of relapse is high. With it, many people keep their mouths stable for years.

Its link to your general health

Periodontitis doesn't stay only in the mouth. Evidence links it to cardiovascular health, to diabetes control (the relationship works both ways), and to other situations such as pregnancy. Looking after your gums is also a way of looking after your overall health.

Take the first step at Debod

This article is informational and doesn't replace a personalised clinical assessment. If you notice bleeding, bad breath, or looseness, the sooner it's evaluated, the better the outlook. At Debod, in the heart of Argüelles in Madrid, we offer a first diagnostic visit included to look at your gums calmly and walk you through your options without pressure. We're at C. de Ferraz, 24, 28008 Madrid (Ventura Rodríguez metro, L3). Call us at +34 914 47 62 25 or message us on WhatsApp at +34 689 10 47 14.