Non-Cochrane · DTA · PM42890841

Oral-fluid inflammatory and oxidative-stress biomarkers for peri-implantitis in Asian adults: a systematic review and stratified random-effects meta-analysis.

Feng Lina, Zhang Lei, He Wenfeng, et al. · Open life sciences · 2026 · PubMed · doi:10.1515/biol-2025-1360

Findings

Population Asian adults with peri-implantitis and healthy controls

29 findings

Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsMeta-regression coefficient for biomarker concentration SMD
Analysis unit: patient
Regression coefficient 0.183 [-1.792, 2.159]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsCombined inflammatory biomarker concentrations
Saliva
SMD 3.06 [2.61, 3.5]
GRADE not reported
2 studies
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsMeta-regression coefficient for biomarker concentration SMD
PI sample size
Regression coefficient -0.021 [-0.045, 0.003]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsIL-1β concentration
Excluding highest absolute SMD study
SMD 1.99 [1.71, 2.26]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsMeta-regression coefficient for biomarker concentration SMD
Biomarker class: oxidative-stress regulator
Regression coefficient -7.531 [-13.028, -2.034]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsTNF-α concentration
Excluding highest absolute SMD study
SMD 2.92 [2.52, 3.32]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsCombined inflammatory biomarker concentrations
2017 diagnostic criteria
SMD 2.43 [-4.76, 9.62]
GRADE not reported
2 studies
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsMeta-regression coefficient for biomarker concentration SMD
Specimen type: saliva
Regression coefficient 0.87 [-1.127, 2.867]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsCombined inflammatory biomarker concentrations
Implant-level
SMD 2.62 [2.35, 2.9]
GRADE not reported
4 studies
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsCombined inflammatory biomarker concentrations
Non-2017 diagnostic criteria
SMD 2.7 [2.36, 3.04]
GRADE not reported
10 studies
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsSIRT1 diagnostic discrimination
Random-effects pooled AUC
AUC 0.867 [0.66, 0.965]
GRADE not reported
2 studies
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsMeta-regression coefficient for biomarker concentration SMD
Specimen type: PISF
Regression coefficient 0.765 [-2.059, 3.589]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsIL-6 concentration
Excluding studies with total sample size below 40
SMD 3.19 [2.93, 3.44]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsCombined inflammatory biomarker concentrations
Patient-level
SMD 2.45 [1.93, 2.97]
GRADE not reported
7 studies
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsIL-6 concentration
Random-effects primary model
SMD 3.19 [3.05, 3.33]
GRADE not reported
9 studies · 623 participants
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsIL-1β concentration in PICF
Random-effects primary model
SMD 2.09 [1.76, 2.42]
GRADE not reported
7 studies · 358 participants
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsCombined inflammatory biomarker concentrations
PICF
SMD 2.46 [2.07, 2.85]
GRADE not reported
10 studies
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsTNF-α concentration
Excluding studies with total sample size below 40
SMD 3.09 [2.75, 3.44]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsMeta-regression coefficient for biomarker concentration SMD
Total sample size
Regression coefficient -0.011 [-0.024, 0.002]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsTNF-α concentration
Common-effect model
SMD 3.06 [2.74, 3.38]
GRADE not reported
6 studies · 344 participants
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsIL-6 concentration
Common-effect model
SMD 3.19 [2.95, 3.43]
GRADE not reported
9 studies · 623 participants
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsTNF-α concentration
Random-effects primary model
SMD 3.06 [2.85, 3.28]
GRADE not reported
6 studies · 344 participants
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsIL-1β concentration in PICF
Common-effect model
SMD 2.02 [1.75, 2.29]
GRADE not reported
7 studies · 358 participants
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsMeta-regression coefficient for biomarker concentration SMD
Publication year
Regression coefficient -0.051 [-0.207, 0.105]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsIL-6 concentration
Excluding highest absolute SMD study
SMD 3.17 [2.93, 3.42]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsMeta-regression coefficient for biomarker concentration SMD
Baseline severity
Regression coefficient 0 [-0.0, 0.0]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsIL-1β concentration
Excluding studies with total sample size below 40
SMD 1.92 [1.63, 2.21]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsMeta-regression coefficient for biomarker concentration SMD
Analysis unit: site
Regression coefficient 3.204 [-2.332, 8.74]
GRADE not reported
Studies not reported
Oral-fluid biomarkers in peri-implantitisHealthy peri-implant controlsMeta-regression coefficient for biomarker concentration SMD
Biomarker class: inflammation
Regression coefficient -5.872 [-11.071, -0.674]
GRADE not reported
Studies not reported

Included primary studies 13

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Chen 2020
matched by author and year (probable)
NR2 other reviewsnot statednot extracted yet
Yang 2024
matched by author and year (probable)
NR2 other reviewsPM42890841-P8-O1not extracted yet
Abduljabbar 2019
Relationship between self-rated pain and peri-implant clinical, radiographic and whole salivary inflammatory markers among patients with…
PMID:31709730
2019this review onlynot statednot extracted yet
Al-Askar 2018
Clinical and Radiographic Peri-Implant Parameters and Whole Salivary Interleukin-1β and Interleukin-6 Levels among Type-2 Diabetic and…
PMID:29490310
2018this review onlynot statednot extracted yet
Bhukal 2025
Assessing the Significance of Interleukin-6, Interleukin-10, and Tumor Necrosis Factor-Alpha in Peri-Implantitis Development: A Biomarker…
PMID:40959363
2025this review onlynot statednot extracted yet
Gao 2018
Differential expressions of biomarkers in gingival crevicular fluid of Han and Uygur populations with peri-implantitis.
PMID:29668623
2018this review onlynot statednot extracted yet
Gundogar 2021
The Effect of Periodontal and Peri-Implanter Health on IL-1β and TNF-α Levels in Gingival Crevicular and Peri-Implanter Sulcus Fluid: a…
DOI:10.15517/ijds.2021.44071
2020this review onlynot statednot extracted yet
Luo 2011
Expression of HMGB1 and HMGN2 in gingival tissues, GCF and PICF of periodontitis patients and peri-implantitis.
PMID:21570059
2011this review onlynot statednot extracted yet
Saxena 2025
Evaluating the role of inflammatory biomarkers as a diagnostic tool in peri-implantitis.
PMID:40008071
2025this review onlynot statednot extracted yet
Wang 2022
Peri-implant crevicular fluid SIRT1 levels decrease in patients with peri-implant inflammatory: A prospective observational study.
PMID:35781023
2022this review onlynot statednot extracted yet
Yaghobee 2013
Comparison of interleukin-1β levels in gingival crevicular fluid and peri-implant crevicular fluid and its relationship with clinical…
PMID:23724197
2013this review onlynot statednot extracted yet
Yaghobee 2014
Assessment of interleukin-1beta and interleukin-6 in the crevicular fluid around healthy implants, implants with peri-implantitis, and…
PMID:25368834
2014this review onlynot statednot extracted yet
Zhang 2005
Increased IL-6 Levels in Peri-Implant Crevicular Fluid Correlate with Peri-Implantitis
DOI:10.3353/omp.10.95
2005this 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)
PopulationAsian adults with peri-implantitis, peri-implant mucositis, or healthy implantsAsian adults with peri-implantitis vs healthy controls from China, India, Iran, Saudi Arabia and Turkey (n=13 studies)
InterventionMeasurement of biomarkers (inflammatory cytokines or oxidative-stress regulators) in PICF or salivaPeri-implantitis; IL-1beta (n=7), IL-6 (n=9), TNF-alpha (n=6) in PICF or saliva; SIRT1 (n=2)
ComparisonHealthy peri-implant controls or patients without peri-implantitisHealthy peri-implant controls (n=13)
OutcomesQuantitative biomarker concentrations (mean, SD) and/or diagnostic performance (ROC, AUC, sensitivity, specificity)IL-1beta SMD (n=7, 145 PI vs 213 controls); IL-6 SMD (n=9, 274 vs 349); TNF-alpha SMD (n=6, 144 vs 200); SIRT1 pooled AUC (n=2)
Study designsObservational clinical studies (cross-sectional, case-control, cohort)Observational cross-sectional/case-control studies (n=13)
TimingNot specifiedNot specified