Inflamed gums usually result from plaque buildup along the gumline, and in most mild cases, they can improve within one to two weeks with consistent oral hygiene. About 42% of U.S. adults over 30 have some form of gum disease, so this is one of the most common dental problems you’ll encounter. The good news is that early-stage gum inflammation, called gingivitis, is fully reversible. The key is acting before it progresses.
Why Gums Become Inflamed
Your mouth contains between 500 and 700 species of bacteria. Most are harmless, but when plaque (a sticky film of bacteria) accumulates on teeth and along the gumline, certain species begin to dominate and trigger your immune system. Your body sends white blood cells to the area and releases inflammatory molecules to fight off the bacteria before they can reach deeper tissues like bone. That immune response is what causes the redness, swelling, and tenderness you feel.
The problem starts when this inflammation becomes persistent. If plaque isn’t removed regularly, it hardens into tarite (calculus) that you can’t brush away. The ongoing immune reaction begins breaking down the connective tissue and bone that hold your teeth in place. At that point, you’ve moved from gingivitis into periodontitis, a more serious condition where gums pull away from the teeth, pockets form between the gum and tooth, and teeth can eventually loosen.
Steps You Can Take at Home
For mild inflammation, improving your daily routine is often enough to reverse the problem entirely. Brush twice a day with a soft-bristled toothbrush, angling the bristles at 45 degrees toward the gumline. This is the spot where plaque accumulates most. Floss once a day, gently sliding the floss along the curve of each tooth rather than snapping it straight down into the gum. If traditional floss is difficult, interdental brushes or a water flosser work just as well for clearing bacteria between teeth.
A saltwater rinse can help reduce inflammation and bacteria in the short term. Mix one teaspoon of salt into eight ounces of warm water. If your gums are very tender, start with half a teaspoon. Swish for 15 to 20 seconds and spit. You can repeat this several times a day, particularly after meals.
Therapeutic mouthwashes offer another layer of protection. Look for products containing cetylpyridinium chloride or essential oils, both of which have been shown to reduce plaque and gingivitis when combined with brushing and flossing. Chlorhexidine rinses are the strongest antimicrobial option but are typically used short-term because they can stain teeth with extended use. Your dentist can recommend the best fit for your situation.
How Long Recovery Takes
Mild gingivitis can start improving within three to five days of consistent brushing and flossing, with most symptoms resolving in one to two weeks. Moderate cases where plaque has been building for longer typically take 10 to 21 days. Severe gingivitis may require three weeks or more, and often needs professional cleaning to fully resolve. Children and teenagers tend to heal faster, often within a week, because their tissue regenerates more quickly.
If your gums are still red, swollen, or bleeding after two to three weeks of diligent home care, that’s a clear signal that you need professional treatment. The inflammation may have progressed beyond what brushing and flossing alone can address.
When Professional Treatment Is Needed
If plaque has hardened into tartar below the gumline, no amount of brushing will remove it. A dentist or hygienist performs a procedure called scaling and root planing, sometimes called a “deep cleaning.” Scaling removes plaque and tartar from above and below the gumline using hand instruments or ultrasonic tools. Root planing smooths the surfaces of tooth roots so that gum tissue can reattach more easily. The procedure is done under local anesthesia, and your dentist may also place antibiotics directly around the tooth roots or prescribe oral antibiotics to prevent infection afterward.
Most people need one or two sessions, and the gums typically feel sore for a few days following treatment. Your dentist will schedule a follow-up to check whether the pockets between your gums and teeth have started to shrink, which is the main measure of success.
Nutrition and Gum Health
What you eat plays a supporting role in how well your gums resist and recover from inflammation. Vitamin C is essential for maintaining the connective tissue in your gums, and a deficiency directly increases the risk of gum bleeding. Good sources include citrus fruits, bell peppers, strawberries, and broccoli. Vitamin D also appears to affect gum bleeding, with some research suggesting its impact on gum health is even more significant than its effect on bone loss. Fatty fish, fortified dairy, and regular sun exposure are the most practical ways to maintain adequate levels.
Sugary and starchy foods feed the bacteria that form plaque, so reducing them between meals limits the fuel available for bacterial growth. Crunchy fruits and vegetables like apples and carrots can also help mechanically clear some plaque from tooth surfaces, though they’re no substitute for brushing.
Signs That Need Urgent Attention
Most gum inflammation is not an emergency, but certain symptoms indicate a more serious problem. Pus between your gums and teeth, a loose tooth, or persistent bad breath that doesn’t improve with better hygiene all suggest the infection has advanced. A gum abscess, where a pocket of pus forms along the gumline, is a dental emergency that requires prompt treatment to avoid complications.
If you develop fever, chills, nausea, difficulty breathing, or difficulty swallowing alongside gum pain, head to an emergency room. These symptoms suggest the infection may be spreading beyond the mouth, which can become dangerous quickly.