Non-Cochrane · intervention · PM41907859

The role of omega-3 polyunsaturated fatty acids in the non-surgical management of periodontitis: a systematic review and meta-analysis.

Benincasa Gianluca, Liguori Margherita Giorgia, Tarallo Francesco, et al. · Frontiers in oral health · 2026 · PubMed · doi:10.3389/froh.2026.1761032

Findings

20 findings

Population
Adults with stage II-IV periodontitis, systemically healthy or with controlled systemic conditionsNSPT + omega-3 PUFA (with or without ASA)NSPT + placebo (SRP alone)Probing pocket depth (PPD)
3 months
MD -0.44 [-0.62, -0.25]
Moderate
Downgraded: risk of bias, inconsistency
10 studies · 492 participants
Adults with stage II-IV periodontitis, systemically healthy or with controlled systemic conditionsNSPT + omega-3 PUFA (with or without ASA)NSPT + placebo (SRP alone)Clinical attachment level (CAL)
3 months
MD -0.49 [-0.75, -0.23]
Low
Downgraded: risk of bias, inconsistency, publication bias
10 studies · 492 participants
Adults with stage II-IV periodontitis, systemically healthy or with controlled systemic conditionsNSPT + omega-3 PUFA (with or without ASA)NSPT + placebo (SRP alone)Clinical attachment level (CAL)
6 months
MD -0.58 [-0.96, -0.21]
Low
Downgraded: risk of bias, inconsistency, publication bias
7 studies · 318 participants
Adults with stage II-IV periodontitis, systemically healthy or with controlled systemic conditionsNSPT + omega-3 PUFA (with or without ASA)NSPT + placebo (SRP alone)Probing pocket depth (PPD)
6 months
MD -0.45 [-0.76, -0.14]
Low
Downgraded: risk of bias, inconsistency, publication bias
7 studies · 318 participants
Systemically healthy adults with stage II-IV periodontitisNSPT + omega-3 PUFA aloneNSPT + placebo (SRP alone)Clinical attachment level (CAL)
6 months · Omega-3 alone in healthy patients
MD -0.31 [-0.93, 0.31]
GRADE not reported
1 study · 40 participants
Systemically healthy adults with stage II-IV periodontitisNSPT + omega-3 PUFA aloneNSPT + placebo (SRP alone)Probing pocket depth (PPD)
6 months · Omega-3 alone in healthy patients
MD -0.07 [-0.47, 0.33]
GRADE not reported
1 study · 40 participants
Systemically healthy adults with stage II-IV periodontitisNSPT + omega-3 PUFA aloneNSPT + placebo (SRP alone)Clinical attachment level (CAL)
3 months · Omega-3 alone in healthy patients
MD -0.61 [-0.92, -0.3]
GRADE not reported
5 studies · 234 participants
Systemically healthy adults with stage II-IV periodontitisNSPT + omega-3 PUFA aloneNSPT + placebo (SRP alone)Probing pocket depth (PPD)
3 months · Omega-3 alone in healthy patients
MD -0.48 [-0.59, -0.36]
GRADE not reported
5 studies · 234 participants
Systemically healthy adults with stage II-IV periodontitisNSPT + omega-3 PUFA + ASANSPT + placebo (SRP alone)Probing pocket depth (PPD)
3 months · Omega-3 + ASA in healthy patients
MD -0.37 [-0.94, 0.19]
GRADE not reported
2 studies · 118 participants
Systemically healthy adults with stage II-IV periodontitisNSPT + omega-3 PUFA + ASANSPT + placebo (SRP alone)Clinical attachment level (CAL)
6 months · Omega-3 + ASA in healthy patients
MD -0.39 [-1.32, 0.54]
GRADE not reported
2 studies · 118 participants
Systemically healthy adults with stage II-IV periodontitisNSPT + omega-3 PUFA + ASANSPT + placebo (SRP alone)Probing pocket depth (PPD)
6 months · Omega-3 + ASA in healthy patients
MD -0.43 [-1.1, 0.23]
GRADE not reported
2 studies · 118 participants
Systemically healthy adults with stage II-IV periodontitisNSPT + omega-3 PUFA + ASANSPT + placebo (SRP alone)Clinical attachment level (CAL)
3 months · Omega-3 + ASA in healthy patients
MD -0.39 [-1.34, 0.56]
GRADE not reported
2 studies · 118 participants
Adults with type 2 diabetes and periodontitisNSPT + omega-3 PUFA + ASANSPT + placebo (SRP alone)Probing pocket depth (PPD)
6 months · Omega-3 + ASA in patients with type II diabetes
MD -0.49 [-1.47, 0.49]
GRADE not reported
2 studies · 90 participants
Adults with type 2 diabetes and periodontitisNSPT + omega-3 PUFA + ASANSPT + placebo (SRP alone)Clinical attachment level (CAL)
3 months · Omega-3 + ASA in patients with type II diabetes
MD -0.42 [-1.34, 0.51]
GRADE not reported
2 studies · 90 participants
Adults with type 2 diabetes and periodontitisNSPT + omega-3 PUFA + ASANSPT + placebo (SRP alone)Clinical attachment level (CAL)
6 months · Omega-3 + ASA in patients with type II diabetes
MD -0.63 [-1.61, 0.34]
GRADE not reported
2 studies · 90 participants
Adults with type 2 diabetes and periodontitisNSPT + omega-3 PUFA + ASANSPT + placebo (SRP alone)Probing pocket depth (PPD)
3 months · Omega-3 + ASA in patients with type II diabetes
MD -0.56 [-1.49, 0.37]
GRADE not reported
2 studies · 90 participants
Postmenopausal women with periodontitisNSPT + omega-3 PUFANSPT + placebo (SRP alone)Clinical attachment level (CAL)
3 months · Omega-3 in postmenopausal women
MD -0.42 [-0.75, -0.09]
GRADE not reported
1 study · 50 participants
Postmenopausal women with periodontitisNSPT + omega-3 PUFANSPT + placebo (SRP alone)Probing pocket depth (PPD)
3 months · Omega-3 in postmenopausal women
MD -0.42 [-0.71, -0.13]
GRADE not reported
1 study · 50 participants
Postmenopausal women with periodontitisNSPT + omega-3 PUFANSPT + placebo (SRP alone)Clinical attachment level (CAL)
6 months · Omega-3 in postmenopausal women
MD -0.9 [-1.41, -0.39]
GRADE not reported
2 studies · 70 participants
Postmenopausal women with periodontitisNSPT + omega-3 PUFANSPT + placebo (SRP alone)Probing pocket depth (PPD)
6 months · Omega-3 in postmenopausal women
MD -0.67 [-1.02, -0.33]
GRADE not reported
2 studies · 70 participants

Included primary studies 16

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Stando 2020
Omega-3 Polyunsaturated Fatty Acids EPA and DHA as an Adjunct to Non-Surgical Treatment of Periodontitis: A Randomized Clinical Trial.
PMID:32867199
20203 other reviewsnot statednot extracted yet
Deore 2014
Omega 3 fatty acids as a host modulator in chronic periodontitis patients: a randomised, double-blind, palcebo-controlled, clinical trial.
PMID:24616831
20142 other reviewsnot statednot extracted yet
El-Sharkawy 2010
Adjunctive treatment of chronic periodontitis with daily dietary supplementation with omega-3 Fatty acids and low-dose aspirin.
PMID:20572767
20102 other reviewsnot statednot extracted yet
Maybodi 2022
Effects of omega-3 supplementation as an adjunct to non-surgical periodontal therapy on periodontal parameters in periodontitis patients:…
PMID:36414947
20222 other reviewsnot statednot extracted yet
Stando-Retecka 2023
Clinical and microbiological outcomes of subgingival instrumentation supplemented with high-dose omega-3 polyunsaturated fatty acids in…
PMID:37179297
20232 other reviewsnot statednot extracted yet
Elgendy 2018
Effect of Omega-3 Fatty Acids on Chronic Periodontitis Patients in Postmenopausal Women: A Randomised Controlled Clinical Study.
PMID:30175329
20181 other reviewnot statednot extracted yet
Elwakeel 2015
Effect of omega 3 fatty acids plus low-dose aspirin on both clinical and biochemical profiles of patients with chronic periodontitis and…
PMID:25604769
20151 other reviewnot statednot extracted yet
Martinez 2014
Serum level changes of long chain-polyunsaturated fatty acids in patients undergoing periodontal therapy combined with one year of omega-3…
PMID:25177518
20141 other reviewnot statednot extracted yet
Araujo 2025
Omega-3 and aspirin in the nonsurgical treatment of grade C periodontitis: A randomized clinical trial.
PMID:39950354
2025this review onlynot statednot extracted yet
Castro Dos Santos 2020
Omega-3 PUFA and aspirin as adjuncts to periodontal debridement in patients with periodontitis and type 2 diabetes mellitus: Randomized…
PMID:32103495
2020this review onlynot statednot extracted yet
Eldessouky 2024
Nonsurgical Treatment of Periodontitis in Menopausal Patients: A Randomized Control Trial.
PMID:38510979
2024this review onlynot statednot extracted yet
Keskiner 2017
Dietary supplementation with low-dose omega-3 fatty acids reduces salivary tumor necrosis factor-α levels in patients with chronic…
PMID:28177133
2017this review onlynot statednot extracted yet
Kujur 2020
Efficacy of omega 3 fatty acid as an adjunct in the management of chronic periodontitis: A randomized controlled trial.
PMID:32436902
2020this review onlynot statednot extracted yet
Martinez 2013
The impact of non-surgical periodontal treatment on serum levels of long chain-polyunsaturated fatty acids: a pilot randomized clinical…
PMID:23721647
2014this review onlynot statednot extracted yet
Naqvi 2017
Impact of Docosahexaenoic Acid Therapy on Subgingival Plaque Microbiota.
PMID:28517974
2017this review onlynot statednot extracted yet
Rampally 2019
Comparison of effectiveness of low-dose aspirin versus omega-3 fatty acids as adjuvants to nonsurgical periodontal therapy in Type II…
PMID:31143006
2019this review onlynot statednot extracted yet

Overlap with other reviews

Reviews that include the same primary studies are not independent evidence. Shared counts match studies by PMID, DOI or NCT, and otherwise by author and year (a probable match). Only the non-Cochrane dental reviews have study lists, so overlap with Cochrane reviews is not counted yet.

Review question

ElementPlanned (methods)Found (results)
PopulationAdults (>=18 years), systemically healthy or with controlled systemic conditions, with stage II-IV periodontitisAdults with stage II-IV periodontitis; systemically healthy, type 2 diabetes (n=3 RCTs) and postmenopausal women (n=2 RCTs); sample sizes 15 to 80 (16 RCTs)
InterventionNSPT (subgingival instrumentation) plus omega-3 PUFA for at least 1 month, with or without ASANSPT + omega-3 PUFA alone (10 RCTs), omega-3 + ASA (5 RCTs), omega-3 and ASA as separate arms (1 RCT); 500 to 3,000 mg/day for 1 to 12 months
ComparisonNSPT plus placeboNSPT + placebo or NSPT alone
OutcomesPrimary: CAL and PPD change. Secondary: added effect of ASA, PROMs on tolerability and adverse effectsCAL and PPD change at 3 and 6 months (meta-analysis of 10 studies at 3 months and 7 at 6 months); BoP, PI, biochemical and microbiological outcomes and PROMs reported narratively
Study designsRCTs16 parallel-group single-center RCTs (2010 to 2025)
TimingShort-term outcomes at 3 and/or 6 monthsFollow-up of 3 months (6 RCTs), 4 months (1), 6 months (7), 12 months (2)