Non-Cochrane · intervention · PM42452559

The Impact of Periodontal Therapy on Disease Activity in Patients with Rheumatoid Arthritis and Concomitant Periodontitis: A Systematic Review and Meta-Analysis.

Khennoufa Lina, Vinhas Ana Sofia, Benoit Josselin, et al. · Journal of clinical medicine · 2026 · PubMed · doi:10.3390/jcm15135099

Findings

23 findings

Population
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-ESR (change or follow-up not specified)
3 months · Sensitivity: excluding trials with adjunctive systemic antimicrobials (analysis type not specified in text)
MD -1.14 [-1.51, -0.78]
GRADE not reported
3 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, change from baseline
3 months · Sensitivity: excluding Nakajima 2025
MD -0.51 [-0.90, -0.13]
GRADE not reported
3 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, change from baseline
3 months · Sensitivity: Hartung-Knapp adjustment
MD -0.55 [-0.90, -0.21]
GRADE not reported
4 studies
Adults with rheumatoid arthritis and concomitant periodontitisSteps 1 and 2 of periodontal therapy (supragingival PMPR and subgingival instrumentation, with or without OHI)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-ESR, change from baseline
6 months · Overall
no estimate extracted
No studies found
0 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, change from baseline
6 months · Exploratory combination of 2 trials, pre/post correlation r = 0 (not pooled by the authors)
MD -0.58 [-1.18, 0.03]
GRADE not reported
2 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, change from baseline
3 months · Sensitivity: excluding trials at high risk of bias
MD -0.48 [-0.88, -0.07]
GRADE not reported
2 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, follow-up value
3 months · Sensitivity: excluding trials at high risk of bias
MD -0.58 [-1.09, -0.07]
GRADE not reported
2 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, change from baseline
6 months · Exploratory combination of 2 trials, pre/post correlation r = 0.7 (not pooled by the authors)
MD -0.57 [-0.91, -0.23]
GRADE not reported
2 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, change from baseline
3 months
MD -0.55 [-0.92, -0.19]
Low
Downgraded: risk of bias, imprecision
4 studies · 189 participants
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, follow-up value
3 months · Sensitivity: Hartung-Knapp adjustment
MD -0.84 [-1.77, 0.09]
GRADE not reported
4 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, change from baseline
6 months · Exploratory combination of 2 trials, pre/post correlation r = 0.5 (not pooled by the authors)
MD -0.57 [-1.01, -0.14]
GRADE not reported
2 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-ESR, follow-up value
3 months · Sensitivity: Hartung-Knapp adjustment
MD -0.89 [-2.23, 0.45]
GRADE not reported
5 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-ESR, change from baseline
3 months
MD -1.27 [-2.22, -0.31]
Very low
Downgraded: risk of bias, imprecision, inconsistency
5 studies · 211 participants
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-ESR, change from baseline
3 months · Sensitivity: Hartung-Knapp adjustment
MD -1.27 [-2.54, 0.01]
GRADE not reported
5 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, follow-up value
3 months · Sensitivity: excluding Nakajima 2025
MD -0.83 [-1.50, -0.15]
GRADE not reported
3 studies
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-CRP, follow-up value
3 months
MD -0.84 [-1.38, -0.29]
Low
Downgraded: risk of bias, imprecision
4 studies · 189 participants
Adults with rheumatoid arthritis and concomitant periodontitisPeriodontal therapy steps 1-2 (supragingival PMPR and subgingival instrumentation)No periodontal treatment, delayed treatment, or oral hygiene instructions aloneDAS28-ESR, follow-up value
3 months
MD -0.89 [-1.85, 0.07]
Very low
Downgraded: risk of bias, imprecision, inconsistency
5 studies · 211 participants
Adults with rheumatoid arthritis and periodontitis in five RCTs reporting PPD and CAL as mean and SDStudy-level change in periodontal parameters after periodontal therapy (exploratory dose-response)Not applicableChange in DAS28 vs Change in CAL
3 months · Exploratory study-level correlation
Pearson r 0.033 [-0.875, 0.889]
GRADE not reported
5 studies
Adults with rheumatoid arthritis and periodontitis in five RCTs reporting PPD and CAL as mean and SDStudy-level change in periodontal parameters after periodontal therapy (exploratory dose-response)Not applicableChange in PPD vs Change in CAL
3 months · Exploratory study-level correlation
Spearman rho 0.900 [-0.169, 0.996]
GRADE not reported
5 studies
Adults with rheumatoid arthritis and periodontitis in five RCTs reporting PPD and CAL as mean and SDStudy-level change in periodontal parameters after periodontal therapy (exploratory dose-response)Not applicableChange in DAS28 vs Change in PPD
3 months · Exploratory study-level correlation
Pearson r 0.127 [-0.850, 0.908]
GRADE not reported
5 studies
Adults with rheumatoid arthritis and periodontitis in five RCTs reporting PPD and CAL as mean and SDStudy-level change in periodontal parameters after periodontal therapy (exploratory dose-response)Not applicableChange in PPD vs Change in CAL
3 months · Exploratory study-level correlation
Pearson r 0.956 [0.470, 0.997]
GRADE not reported
5 studies
Adults with rheumatoid arthritis and periodontitis in five RCTs reporting PPD and CAL as mean and SDStudy-level change in periodontal parameters after periodontal therapy (exploratory dose-response)Not applicableChange in DAS28 vs Change in PPD
3 months · Exploratory study-level correlation
Spearman rho 0.200 [-0.833, 0.922]
GRADE not reported
5 studies
Adults with rheumatoid arthritis and periodontitis in five RCTs reporting PPD and CAL as mean and SDStudy-level change in periodontal parameters after periodontal therapy (exploratory dose-response)Not applicableChange in DAS28 vs Change in CAL
3 months · Exploratory study-level correlation
Spearman rho 0.100 [-0.859, 0.903]
GRADE not reported
5 studies

Included primary studies 10

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Al-Katma 2007
Control of periodontal infection reduces the severity of active rheumatoid arthritis.
PMID:17551378
2007this review onlyDAS28-CRP, change from baseline; DAS28-CRP, follow-up value; DAS28-ESR, change from baselinenot extracted yet
de Pablo 2023 (OPERA)
Outcomes of periodontal therapy in rheumatoid arthritis: The OPERA feasibility randomized trial.
PMID:36415901
2023this review onlyDAS28-CRP, change from baseline; DAS28-ESR, change from baseline; DAS28-ESR, follow-up valuenot extracted yet
Kaveri 2024
Effect of Periodontal Therapy on Rheumatoid Disease Activity in Patients on Anti-Rheumatoid Drugs - A Prospective Study.
PMID:39171606
2024this review onlyDAS28-CRP, change from baseline; DAS28-CRP, follow-up value; DAS28-ESR, change from baselinenot extracted yet
Khare 2016
Nonsurgical Periodontal Therapy decreases the Severity of Rheumatoid Arthritis: A Case-control Study.
PMID:27484603
2016this review onlyDAS28-CRP, change from baseline; DAS28-CRP, follow-up value; DAS28-ESR, change from baselinenot extracted yet
Monsarrat 2019 (ESPERA)
The effect of periodontal treatment on patients with rheumatoid arthritis: The ESPERA randomised controlled trial.
PMID:30822490
2019this review onlyDAS28-CRP, change from baseline; DAS28-CRP, follow-up value; DAS28-ESR, change from baselinenot extracted yet
Nakajima 2025
Impact of Periodontal Treatment on Early Rheumatoid Arthritis and the Role of Porphyromonas gingivalis Antibody Titers.
PMID:39863920
2025this review onlyDAS28-CRP, change from baseline; DAS28-ESR, change from baseline; DAS28-ESR, follow-up valuenot extracted yet
Nguyen 2021
Effects of non-surgical periodontal treatment in rheumatoid arthritis patients: A randomized clinical trial.
PMID:33792210
2021this review onlyDAS28-CRP, change from baseline; DAS28-ESR, change from baseline; DAS28-ESR, follow-up valuenot extracted yet
Ortiz 2009
Periodontal therapy reduces the severity of active rheumatoid arthritis in patients treated with or without tumor necrosis factor…
PMID:19335072
2009this review onlyDAS28-CRP, change from baseline; DAS28-CRP, follow-up value; DAS28-ESR, change from baselinenot extracted yet
Pinho 2009
Relationship between periodontitis and rheumatoid arthritis and the effect of non-surgical periodontal treatment.
PMID:20126902
2009this review onlyDAS28-CRP, change from baseline; DAS28-CRP, follow-up valuenot extracted yet
Thilagar 2022
Periodontal Treatment for Chronic Periodontitis With Rheumatoid Arthritis.
PMID:35810012
2022this review onlyDAS28-CRP, change from baseline; DAS28-ESR, change from baseline; DAS28-ESR, follow-up valuenot extracted yet

Review question

ElementPlanned (methods)Found (results)
PopulationAdults (18 years or older) with rheumatoid arthritis and concurrent periodontitisAdults with rheumatoid arthritis and periodontitis (10 RCTs, n = 430 randomized)
InterventionSteps 1 and 2 of the 2020 EFP S3 guideline (supragingival PMPR and subgingival instrumentation, with or without OHI); adjunctive antimicrobials allowedPeriodontal therapy, mostly PMPR plus subgingival instrumentation with OHI; adjunctive antimicrobials in 2 trials (n=10 trials)
ComparisonNo periodontal treatment, delayed periodontal treatment, or oral hygiene instructions aloneNo treatment, delayed treatment or OHI only (n=10 trials)
OutcomesChange from baseline in DAS28-CRP and DAS28-ESR at 3 and 6 months (co-primary); PPD, CAL (secondary)DAS28-ESR 3 months (n=5 pooled); DAS28-CRP 3 months (n=4 pooled); DAS28-CRP 6 months (n=2, narrative); PPD and CAL (not pooled)
Study designsRandomized controlled trials (parallel-group or delayed-start)10 RCTs
Timing3 and 6 months post-interventionFollow-up 1.5 to 12 months; pooled at 3 months

AMSTAR 2 items

Two independent extractors rated each item. Their ratings are shown side by side because they have not been reconciled yet. The overall rating follows Shea et al. 2017: one critical flaw gives Low, more than one gives Critically Low.

ItemExtractor AExtractor BAgree
1Research question includes PICO componentsYesYesyes
2Protocol established before the reviewcriticalYesYesyes
3Choice of study designs explainedYesYesyes
4Comprehensive literature searchcriticalPartial YesPartial Yesyes
5Study selection in duplicateYesYesyes
6Data extraction in duplicateYesYesyes
7List of excluded studies with reasonscriticalYesYesyes
8Included studies described in detailPartial YesPartial Yesyes
9Risk of bias assessed satisfactorilycriticalNRSI: N/A · RCT: YesNRSI: N/A · RCT: Yesyes
10Funding of included studies reportedNoNoyes
11Appropriate meta-analysis methodscriticalRCT: Yes · NRSI: N/ARCT: Yes · NRSI: N/Ayes
12Impact of risk of bias on the pooled resultsYesYesyes
13Risk of bias accounted for in interpretationcriticalYesYesyes
14Heterogeneity explainedYesYesyes
15Publication bias investigatedcriticalNoNoyes
16Conflicts of interest reportedYesYesyes
OverallLowLowyes