About 46% of US adults 30 and older have some form of gum disease, according to CDC estimates — and most of them don't know they have it. That's not carelessness. Early gum disease doesn't hurt, so it's easy to shrug off the small stuff: a little pink in the sink, breath that mints don't fix.
The stakes are worth knowing up front. Caught early, gum disease — the stage called gingivitis — is fully reversible with a professional cleaning and better home care. Caught late, as periodontitis, you're managing permanent bone loss for the rest of your life. Here are the seven warning signs in roughly the order they show up, and how fast to act on each one.
Gingivitis is stage one. Plaque builds up along the gumline, your immune system reacts, and the gums get inflamed. There's no permanent damage yet — remove the plaque and the tissue heals within a few weeks.
Periodontitis is what happens when plaque hardens into tartar and spreads below the gumline. The infection erodes the bone and ligaments that anchor your teeth, creating pockets where more bacteria collect. That damage doesn't reverse; it can only be stopped. Roughly 8% of US adults have the severe form.
Healthy gums don't bleed. If your toothbrush comes away pink or flossing leaves red on the string more than once in a while, that's your earliest and most reliable warning.
All three of these are classic gingivitis — annoying, but completely fixable at this stage.
Sign 4 is bad breath or a sour taste that survives brushing, mouthwash, and mints. Bacteria in gum pockets produce sulfur compounds your toothbrush can't reach, so the smell keeps coming back no matter what you do up top.
Sign 5 is recession — teeth that look longer than they used to, or new sensitivity to cold right at the gumline. Receded tissue doesn't grow back on its own. Both signs suggest the problem has moved below the gumline, which is the tipping point between gingivitis and early periodontitis.
Sign 6 is any adult tooth that wiggles, even slightly. Teeth are held in place by bone and ligament, so looseness means the infection has already destroyed some of both.
Sign 7 is a change in how your teeth fit together — new gaps, teeth that seem to be drifting, or a partial denture that suddenly sits differently. These are late-stage signals, and waiting is the wrong move. Most offices will triage a loose tooth ahead of routine cleanings if you mention it when you call.
Here's the honest triage, assuming you're brushing twice a day and cleaning between your teeth daily in the meantime.
Diagnosis is the part you can't do at home. Measuring pocket depth and clearing tartar from below the gumline takes instruments and training — that's work for a licensed practice like Acme Dental, not a water flosser and optimism.
Cost is the most common reason people delay, so here are realistic US numbers if you're paying without insurance.
For perspective, replacing a single lost tooth with an implant runs $4,000–$5,500 in 2026. If you have dental insurance, preventive cleanings are usually covered in full and scaling at 50–80%, which makes treating early the cheap option by a wide margin.
Give consistent home care two weeks. If any of the seven signs stick around — or you're already seeing signs 4 through 7 — get on a dentist's schedule now. Gingivitis is one of the few health problems you can genuinely fix in about a month, but only while it's still gingivitis.