Infected gums can almost always be improved, and in early stages, fully reversed. The key factor is how far the infection has progressed: gum inflammation limited to the soft tissue (gingivitis) is completely reversible with proper care, while deeper infection that has started destroying bone (periodontitis) requires professional treatment and ongoing management. Here’s what actually works at each stage.
Know What Stage You’re Dealing With
Gum infection exists on a spectrum, and the right approach depends on where you fall. In the earliest stage, gingivitis, plaque and bacteria build up along the gumline and trigger inflammation. Your gums may look red or puffy, bleed when you brush, feel tender when you chew, or give you persistent bad breath. These symptoms can be subtle at first, which is why many people don’t catch them early.
If gingivitis goes untreated, it can progress to periodontitis. This is where the infection moves below the gumline and begins breaking down the bone that holds your teeth in place. That bone loss is permanent. Your dentist measures this progression using a small probe that checks the depth of the pocket between your gum and tooth. Pockets of 1 to 3 millimeters are normal. Four to 5 millimeters signals early periodontitis. Six to 7 millimeters is moderate, and anything above 7 is advanced disease with significant bone loss.
The practical takeaway: if your gums bleed when you brush and you haven’t seen a dentist recently, you’re likely in the gingivitis window where everything is still fixable. If your gums are pulling away from your teeth, your teeth feel loose, or you’ve noticed shifting in your bite, the infection has probably progressed and you’ll need professional help.
What You Can Do at Home
For gingivitis and as a complement to professional treatment for periodontitis, daily home care is the foundation of healing. The goal is simple: remove the bacterial film that forms on your teeth every day before it hardens into tarite that you can’t brush away.
Brushing technique matters more than most people realize. The most effective method, recommended by dental professionals, is the Modified Bass technique. Hold your toothbrush at an angle so the bristles point toward your gumline. Make short back-and-forth strokes, then sweep the brush from under the gum toward the edge of the tooth. This targets the narrow crevice between tooth and gum where bacteria accumulate. Use a soft-bristled brush and don’t scrub hard, as aggressive brushing can damage already inflamed tissue.
Floss daily, getting below the gumline on both sides of every tooth. If traditional floss is difficult, interdental brushes or a water flosser can be effective alternatives. The point is disrupting the bacterial colonies that live between teeth where your brush can’t reach.
Saltwater Rinses
A warm saltwater rinse is one of the simplest ways to reduce oral inflammation and promote healing. Mix 1 teaspoon of salt into 8 ounces of warm water. If your mouth is sore, start with half a teaspoon for the first day or two. Swish for 30 seconds after meals to help keep the area clean. Don’t overdo it, though. Rinsing too many times a day or swallowing the solution can lead to dehydration.
Prescription Mouthwash
Your dentist may prescribe a 0.12% chlorhexidine rinse, which is a stronger antimicrobial than anything available over the counter. It’s effective at killing the bacteria driving the infection, but it comes with a trade-off: in clinical testing, 56% of users developed noticeable tooth staining after six months of use, and 15% developed heavy staining. For this reason, most dentists prescribe it for a limited period rather than indefinite daily use.
Professional Treatments That Work
If your gums have progressed beyond what home care can fix, the first-line professional treatment is scaling and root planing, often called a “deep cleaning.” This is different from a routine dental cleaning. Your dentist or hygienist uses specialized instruments to remove hardened plaque and bacteria from below the gumline, then smooths the root surfaces of your teeth. That smooth surface helps your gums reattach to the tooth.
Recovery takes some patience. If you follow proper aftercare (gentle brushing, saltwater rinses, avoiding hard or crunchy foods in the first few days), your gums typically heal within four to six weeks. You’ll likely notice reduced bleeding and less redness within the first two weeks, with continued improvement over the following month.
For more advanced infections, your dentist may also prescribe oral antibiotics to help control the bacterial load. The specific antibiotic depends on the severity and your medical history, but courses typically run three to five days. In some cases, your dentist may place a localized antibiotic directly into the deepest pockets, delivering medication right where the infection is worst.
Severe periodontitis with significant bone loss may require surgical intervention. Flap surgery allows the dentist to lift the gums back, clean out deep deposits, and reposition the tissue. Bone grafts or tissue grafts can help rebuild structures that have been destroyed. These are typically last-resort options after less invasive treatments have been tried.
Nutrition That Supports Gum Healing
Your body needs specific raw materials to rebuild damaged gum tissue. Vitamin C plays a central role because it drives collagen production, and collagen is the main structural protein in your gums. Without adequate vitamin C, your body simply can’t repair the tissue effectively. One clinical trial found that taking 200 mg of vitamin C three times per day improved wound healing in the mouth. You can get this from citrus fruits, bell peppers, strawberries, and broccoli, or from a supplement if your diet falls short.
Beyond vitamin C, adequate protein intake supports tissue repair, and calcium and vitamin D help maintain the bone that supports your teeth. Cutting back on sugary foods and drinks also matters directly, since sugar feeds the bacteria responsible for plaque buildup.
Why Blood Sugar Matters
If you have diabetes or prediabetes, your gum infection risk is significantly higher, and healing is harder. Persistently elevated blood sugar impairs your immune system’s ability to fight oral infections, promotes chronic inflammation in the mouth, and creates a glucose-rich environment in your saliva where harmful bacteria thrive. This makes gum disease both more likely and more aggressive.
The relationship works in both directions. Treating gum disease reduces chronic inflammation throughout the body, which can improve your response to insulin and help stabilize blood sugar. If you’re managing diabetes and struggling with recurring gum problems, getting periodontal treatment under control is part of managing your metabolic health, not a separate issue.
What to Expect During Recovery
Healing infected gums is not an overnight process, but you should see measurable progress within a few weeks. With consistent home care for gingivitis, most people notice less bleeding within 7 to 14 days. The redness and puffiness take a bit longer to resolve, usually two to four weeks.
After a deep cleaning for periodontitis, the four-to-six-week healing window is typical. Your dentist will want to see you for a follow-up to re-measure pocket depths and check whether the gums are reattaching. Some people need a second round of scaling and root planing in areas that didn’t respond fully.
The most common reason gum infections come back is inconsistent maintenance. Once you’ve healed, you’ll likely need dental cleanings every three to four months rather than the standard six, at least for the first year or two. Your dentist will adjust the frequency based on how your gums respond. Think of it as the cost of keeping the progress you’ve made: the infection is controlled, not cured, and bacteria will recolonize if given the opportunity.