Non-Cochrane · exposure · PM42150341

Oral Health in Early and Advanced Stages (1-4) of Chronic Kidney Disease: A Systematic Review and Meta-Analysis.

Niederau Christian, Ali Asia Azad, Chahboun Saida, et al. · International dental journal · 2026 · PubMed · doi:10.1016/j.identj.2026.109610

Findings

17 findings

Population
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Clinical attachment loss (CAL)MD 0.27 [-0.02, 0.56]
Low
Downgraded: risk of bias, imprecision, indirectness
4 studies · 1560 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Salivary pHMD 0.45 [0.21, 0.70]
Moderate
6 studies · 419 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Unstimulated salivary flow rateMD -0.16 [-0.22, -0.10]
Moderate
8 studies · 802 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Gingival index (GI)MD 0.50 [-0.00, 1.00]
Low
Downgraded: imprecision
5 studies · 508 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Clinical attachment loss (CAL)MD 0.27 [-0.02, 0.56]
Low
Downgraded: risk of bias, imprecision, indirectness
4 studies · 1560 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Caries experience (DMFT index)
Unresolved: the two extractors disagree on this row.
MD -0.72 [-2.10, 0.66]
Low
Downgraded: imprecision
7 studies · 793 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Bleeding on probing (BOP)MD 7.75 [2.96, 12.54]
Moderate
3 studies · 1458 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Periodontal pocket depth (PPD)MD 0.13 [-0.22, 0.47]
Low
Downgraded: imprecision, indirectness
5 studies · 1620 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Periodontal pocket depth (PPD)MD 0.13 [-0.22, 0.47]
Low
Downgraded: imprecision, indirectness
5 studies · 1620 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Bleeding on probing (BOP)MD 7.75 [2.96, 12.54]
Moderate
3 studies · 1458 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Plaque Index (PI)MD 0.20 [0.01, 0.40]
Moderate
3 studies · 180 participants
Patients with chronic kidney disease stages 1-4 (non-dialysis)CKD stage 1-4 (exposure)Healthy controls without CKDStimulated salivary flow rate (ml/min)MD -0.6 [-0.91, -0.28]
Moderate
5 studies · 500 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5CKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Oral hygiene index simplified (OHI-S)MD 1.47 [0.89, 2.05]
Moderate
6 studies · 573 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5; childrenCKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Caries experience (DMFT index)
Children
MD -2.81 [-5.83, 0.22]
GRADE not reported
3 studies · 292 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5; adultsCKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Caries experience (DMFT index)
Adults
MD 0.12 [-0.88, 1.12]
GRADE not reported
4 studies · 502 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5; studies from EuropeCKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Oral hygiene index simplified (OHI-S)
Studies from Europe
MD 1.75 [1.25, 2.25]
GRADE not reported
5 studies · 513 participants
Patients with early and advanced stage (1-4) chronic kidney disease, excluding dialysis and stage 5; studies from outside EuropeCKD stages 1-4 (exposure)Healthy individuals without CKD (controls)Oral hygiene index simplified (OHI-S)
Studies from outside Europe
MD -0.72 [-1.32, -0.12]
GRADE not reported
1 study · 60 participants

Included primary studies 26

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Dokumacigil 2025
Dental caries, oral hygiene and salivary characteristics in children with chronic kidney disease: a case-control study.
PMID:40105933
20251 other reviewnot statednot extracted yet
Andaloro 2018
Chronic kidney disease in children: Assessment of oral health status.
PMID:30152631
2018this review onlynot statednot extracted yet
Belazelkovska 2014
Oral and Salivary Changes in Patients with Chronic Kidney Disease
DOI:10.2478/bj-2014-0019
2014this review onlynot statednot extracted yet
Beyer 2025
Oral health status in children with chronic kidney disease, kidney transplantation, and nephrotic syndrome: a cross-sectional study.
PMID:39904895
2025this review onlynot statednot extracted yet
Borawski 2007
The periodontal status of pre-dialysis chronic kidney disease and maintenance dialysis patients.
PMID:17124280
2007this review onlynot statednot extracted yet
Brito 2012
Extent and severity of chronic periodontitis in chronic kidney disease patients.
PMID:22181057
2012this review onlynot statednot extracted yet
Davidovich 2005
Oral findings and periodontal status in children, adolescents and young adults suffering from renal failure.
PMID:16174271
2005this review onlynot statednot extracted yet
Davidovich 2009
The correlation between dental calculus and disturbed mineral metabolism in paediatric patients with chronic kidney disease.
PMID:19297359
2009this review onlynot statednot extracted yet
Garcez 2009
Oral health status of patients with a mild decrease in glomerular filtration rate.
PMID:19138640
2009this review onlynot statednot extracted yet
Gupta 2018
Comparative Evaluation of Periodontal Status of Chronic Renal Failure Patients and Systemically Healthy Individuals.
PMID:29603707
2018this review onlynot statednot extracted yet
Kassim 2019
Oral Manifestation and Caries Experience in Pre-Dialysis Chronic Kidney Disease Patients
DOI:10.21315/aos2019.14.2.394
2019this review onlynot statednot extracted yet
Kassim 2019
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
Lamba 2023
Association of Apical Periodontitis with Different Stages of Chronic Kidney Disease Measured by Glomerular Filtration Rate and Systemic…
PMID:37640201
2023this review onlynot statednot extracted yet
Marinho 2007
Oral health status in patients with moderate-severe and terminal renal failure.
PMID:17664917
2007this review onlynot statednot extracted yet
Marinoski 2019
Oral mucosa and salivary findings in non-diabetic patients with chronic kidney disease.
PMID:31078070
2019this review onlynot statednot extracted yet
Oyetola 2015
Salivary Flow Rates of Nigerian Patients with Chronic Kidney Disease: A Case-control Study.
PMID:26067727
2015this review onlynot statednot extracted yet
Palathingal 2022
A Cross-Sectional Study of Serum Glutathione Peroxidase: An Antioxidative Marker in Chronic Periodontitis and Chronic Kidney Disease.
PMID:35340502
2022this review onlynot statednot extracted yet
Pham 2018
Dental condition and salivary characteristics in Vietnamese patients with chronic kidney disease.
PMID:30582881
2019this review onlynot statednot extracted yet
Sezer 2023
Assessment of the oral health status of children with chronic kidney disease.
PMID:35499576
2023this review onlynot statednot extracted yet
Silva 2019
Health and oral health-related quality of life of children and adolescents with chronic kidney disease: a cross-sectional study.
PMID:31123881
2019this review onlynot statednot extracted yet
Tadakamadla 2014
Comparative evaluation of oral health status of chronic kidney disease (CKD) patients in various stages and healthy controls.
PMID:24712506
2014this review onlynot statednot extracted yet
Thorman 2010
Inflammatory cytokines in saliva: early signs of metabolic disorders in chronic kidney disease. A controlled cross-sectional study.
PMID:20955949
2010this review onlynot statednot extracted yet
Tomas 2008
Changes in salivary composition in patients with renal failure
DOI:10.1016/j.archoralbio.2008.01.006
2008this review onlynot statednot extracted yet
Tomas 2008
Changes in salivary composition in patients with renal failure.
PMID:18294611
2008this review onlynot statednot extracted yet
Tsai 2022
Localized periodontitis and kidney function for the risk of proteinuria in young adults in the CHIEF oral health study.
PMID:36347995
2022this review onlynot statednot extracted yet
Valenzuela-Narvaez 2021
Periodontal disease as a predictor of chronic kidney disease (CKD) stage in older adults.
PMID:34311597
2021this 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)
PopulationPatients with CKD in early and advanced stages (1-4), excluding dialysis, kidney transplantation and stage 5CKD stage 1-4 patients, 24 studies (18 cross-sectional, 6 case-control), 22 in meta-analysis
InterventionExposure: CKDCKD stage 1-4 (exposure)
ComparisonPatients without chronic kidney diseaseHealthy controls without CKD
OutcomesDMFT, plaque index, OHI-S, salivary pH, salivary flow rate, bleeding on probing, periodontal pocket depth, clinical attachment loss, gingival indexDMFT (n=7); plaque index (n=3); OHI-S (n=6); salivary pH (n=6); unstimulated flow (n=8); stimulated flow (n=4-5); BOP (n=3); gingival index (n=5); PPD (n=5); CAL (n=4)
Study designsClinical studies (retrospective and prospective) with available full text and a control groupCross-sectional (n=18) and case-control (n=6) studies
TimingNot specifiedNot specified