For people with advanced gum disease, cleaning below the gums is essential, but it is not always enough to bring the disease under control.
Researchers have now found that a six-month treatment using omega-3 supplements with a small dose of aspirin performed about as well as a commonly used two-week antibiotic treatment.
The clinical study involved researchers in Brazil and the United States, including teams from Albert Einstein Israelite Hospital, Guarulhos University, the University of Taubaté, the University of São Paulo’s Ribeirão Preto School of Dentistry and Harvard University. Their results were published in the Journal of Periodontology.
Gum disease often starts quietly. Bacteria collect around the teeth, the gums become swollen or bleed easily, and over time the infection and the body’s own inflammatory response can damage the structures that keep teeth firmly in the jaw.
When the condition progresses to severe periodontitis, deep spaces can form between the teeth and gums. These spaces are difficult to clean at home and can hold large numbers of bacteria, allowing inflammation and bone loss to continue.
Dentists normally treat periodontitis by thoroughly cleaning below the gum line and along the roots of affected teeth. For some severe cases, antibiotics are added because they can reduce harmful bacteria that remain in hard-to-reach areas.
Antibiotics can be valuable, but they also have drawbacks. They can cause side effects, and widespread or unnecessary use encourages bacteria to become resistant, making infections harder to treat in the future.
Researchers therefore wanted to know whether helping the body resolve inflammation could provide another way to improve treatment. They enrolled 109 patients with advanced periodontitis and followed them for 12 months.
Every participant received the same deep cleaning treatment. After that, one group received inactive capsules, one received the antibiotics amoxicillin and metronidazole for 14 days, and another took three grams of omega-3 plus low-dose aspirin every day for six months.
A fourth group received both the antibiotics and the omega-3 and aspirin treatment. The researchers examined the patients after three months, six months and one year and counted how many deep gum pockets remained.
The difference between the main treatment groups was remarkably small. About 58% of patients treated with antibiotics reached the study’s clinical target, compared with 57.7% of those who received omega-3 and low-dose aspirin.
Only 23.1% of patients who received deep cleaning plus inactive capsules reached that target. Adding antibiotics to omega-3 and aspirin did not improve the result further, suggesting that simply combining more treatments was not necessarily better.
The researchers were especially interested in omega-3 because these fats can be turned into substances that help the body finish an inflammatory response. Inflammation is useful when the body is fighting injury or infection, but when it continues for too long it can damage healthy tissue.
This is particularly relevant in periodontitis. Bacteria start the problem, but much of the destruction around the teeth is linked to the body’s continuing response to those bacteria, so calming that response in the right way may help protect gum and bone tissue.
Low-dose aspirin was included because it can support the formation of certain substances involved in resolving inflammation. The approach is different from simply killing bacteria, because it aims to change how the patient’s own body responds to the disease.
Another notable result appeared after the supplements were stopped. The omega-3 and aspirin treatment lasted six months, yet improvements were still seen at the 12-month examination, suggesting that the effect may continue after treatment ends.
The study builds on earlier research by the same scientific group. Previous animal work found that omega-3 supplementation could reduce inflammation and bone loss caused by periodontal disease, especially when combined with physical exercise.
The human trial is more directly relevant to patient care, but it still needs to be interpreted carefully. The researchers studied selected patients without important additional diseases, and a trial involving 109 people cannot show whether the same results will occur across much larger and more varied populations.
It is also important to remember that aspirin is a medicine, even when the dose is low. It can increase the chance of bleeding and interact with other drugs, so people should not use this treatment for gum disease without advice from a dentist or doctor.
The team is continuing to examine bacteria from the patients’ gum pockets to understand what changed during treatment. Preliminary observations suggest that bacteria associated with disease may fall while microbes linked with healthier gums increase, but those findings still require further analysis.
The study is important because it offers a possible way to reduce antibiotic use without giving up clinical benefits in selected severe cases. If larger trials confirm the findings, dentists may eventually have another option for patients who cannot take antibiotics or when avoiding antibiotics is especially desirable.
For now, the strongest conclusion is one of cautious promise rather than a change in everyday dental practice. Omega-3 plus low-dose aspirin matched the antibiotic group in this trial, but researchers still need to establish long-term safety, identify which patients benefit most and confirm the results before the approach can become routine care.
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Source: Albert Einstein Israelite Hospital and partner universities.
