Gum infections range from mild inflammation you can reverse at home to deep-seated disease that requires professional treatment. The approach depends on how far the infection has progressed. Gingivitis, the earliest stage, responds well to improved oral hygiene and antiseptic rinses. Periodontitis, the advanced stage where bone and tissue have started breaking down, needs a dentist’s intervention.
Figure Out What Stage You’re At
Gingivitis shows up as red, swollen gums that bleed when you brush or floss, and sometimes bleed for no obvious reason. At this point, the infection sits in the surface tissue and hasn’t reached the bone. It’s fully reversible.
Periodontitis develops when gingivitis goes untreated. The pockets between your teeth and gums deepen to several millimeters, sometimes more than a centimeter. You may notice receding gums that make your teeth look longer, persistent bad breath, sensitivity, or pain when chewing. In advanced cases, teeth shift position or start to wobble. Once bone loss begins, you can’t grow it back on your own.
A dentist can measure your pocket depths with a thin probe, tooth by tooth. Pockets under 3 mm are generally healthy. Anything above 4 mm signals active disease that home care alone won’t fix.
Home Treatments That Actually Work
Salt Water Rinses
A salt water rinse is the simplest tool for reducing bacteria in your mouth. Research comparing different concentrations found that a 5.8% solution (roughly one teaspoon of salt per ounce of warm water) is well-tolerated and has longer-lasting antibacterial effects than weaker solutions. Swish about 10 mL for 30 seconds, then spit. The antibacterial effect lasts around three hours, so rinsing two to three times a day keeps bacterial levels suppressed throughout the day. Salt water won’t cure periodontitis, but it’s effective for calming inflamed gums and supporting recovery after dental procedures.
Hydrogen Peroxide Rinses
Diluted hydrogen peroxide kills bacteria and helps reduce plaque buildup. Most clinical studies use a 1.5% concentration. If you have the standard 3% bottle from the drugstore, mix it with an equal amount of water to bring it down to 1.5%. Swish for 30 seconds and spit. Five studies that specifically assessed side effects reported none at these concentrations. Don’t swallow it, and don’t use full-strength 3% peroxide, which can irritate soft tissue.
Prescription-Strength Mouthwash
Chlorhexidine rinse at 0.12% concentration is the gold standard antiseptic mouthwash for gum infections. Your dentist prescribes it. The standard dose is half an ounce (15 mL), swished for 30 seconds. It’s highly effective at killing oral bacteria, but it comes with trade-offs: it can stain your teeth brown, discolor your tongue, and permanently stain the surfaces of dental fillings on your front teeth. It also increases tartar buildup. Most dentists recommend using it for a limited period rather than indefinitely.
What a Dentist Does for Deeper Infections
When pockets have deepened and bacteria have colonized below the gumline, no amount of brushing or rinsing can reach the infection. The standard treatment is scaling and root planing, often called a “deep cleaning.” A hygienist uses instruments to scrape plaque and tartar from below the gumline, then smooths the root surfaces so gum tissue can reattach more easily.
Clinical trials consistently show that scaling and root planing reduces pocket depth within four to 28 weeks. Compared to no treatment, it improves the attachment between gum and tooth by about half a millimeter on average when measured six months later. That may sound small, but in a space measured in millimeters, it represents meaningful tissue reattachment. Most people need two to four visits, with the mouth treated in sections under local anesthesia.
For aggressive infections, your dentist may add a course of antibiotics. Common options include an eight-day course of amoxicillin or a 21-day course of doxycycline. These are prescribed alongside the deep cleaning, not as a substitute for it. Antibiotics alone don’t remove the physical deposits that harbor bacteria.
When a Gum Infection Becomes an Emergency
Most gum infections progress slowly. But a dental abscess, a pocket of pus caused by bacterial infection, can escalate quickly. If you develop a fever along with facial swelling and can’t reach your dentist, go to an emergency room. Difficulty breathing or swallowing is a sign the infection has spread into your jaw, throat, or neck, and it requires immediate care. An untreated abscess won’t resolve on its own and can become life-threatening if bacteria enter the bloodstream.
Why Some People Get Gum Infections More Easily
Diabetes is the single biggest medical risk factor. High blood sugar increases glucose levels in your saliva, which feeds the exact bacteria responsible for gum disease. On top of that, diabetes impairs your body’s ability to fight infections and slows healing after any dental work. People with poorly controlled blood sugar are significantly more likely to develop periodontitis and to have it progress faster. Managing blood sugar is, in a real sense, gum disease treatment.
Smoking is the other major factor. It restricts blood flow to the gums, masks early warning signs like bleeding (smokers’ gums bleed less even when infected), and dramatically slows healing after treatment. Quitting smoking improves treatment outcomes more than almost any other single change.
Keeping the Infection From Coming Back
Gum disease is a chronic condition. Even after successful treatment, the bacteria that cause it are always present in your mouth. Prevention comes down to disrupting bacterial colonies before they can re-establish below the gumline.
Brushing twice a day is the baseline, but the tool matters. A Cochrane review of 56 trials found that electric toothbrushes reduce gingivitis by 6% in the first three months and 11% after three months compared to manual brushing. The oscillating-rotating type (the round head that spins back and forth) performed best. If you already have a history of gum problems, switching to an electric brush is one of the simplest upgrades you can make.
Flossing or using interdental brushes cleans the surfaces between teeth where a toothbrush can’t reach, which is exactly where gum pockets form. If traditional floss is difficult, a water flosser is a practical alternative that many people find easier to use consistently. Consistency matters more than the specific tool.
Professional cleanings every six months remove tartar that forms even with excellent home care. If you’ve been treated for periodontitis, your dentist may recommend cleanings every three to four months instead. During these visits, pocket depths are re-measured to catch any recurrence early, before bone loss resumes.