28/08/2026
Could Omega-3 + Low-Dose Aspirin Rival Antibiotics in Severe Periodontitis?
A new randomized, multicenter, double-blind clinical trial suggests a potentially important approach to Stage III–IV periodontitis: targeting inflammation rather than relying solely on antibiotics.
All 109 participants received subgingival instrumentation and were then assigned to placebo or adjunctive treatment with antibiotics, Omega-3 + low-dose aspirin (ASA), or a combination of both.
📊 The key finding: After 1 year, 58.6% of patients receiving antibiotics reached the defined treatment endpoint. Remarkably, 57.7% of patients receiving Omega-3 + low-dose aspirin reached the same endpoint. With instrumentation + placebo alone, the figure was only 23.1%.
The Omega-3/ASA regimen used in the study was 3 g Omega-3 daily + 100 mg ASA daily for 6 months. The antibiotic group received 500 mg amoxicillin + 400 mg metronidazole three times daily for 14 days.
⚠️ Important: This does not mean patients should replace prescribed antibiotics or start taking aspirin and high-dose Omega-3 on their own. The researchers suggest the approach could potentially become an alternative for selected patients who cannot take antibiotics, but further studies are required before it can be considered a routine substitute. Aspirin also carries clinically relevant risks and contraindications.
Bottom line: Periodontal therapy may increasingly be about more than controlling bacteria — controlling and resolving inflammation could become an equally important therapeutic target.
📚 Santos NC Castro dos et al. (2026). DOI: 10.1002/jper.70081