Non-Cochrane · aetiology · PM40379944

The contribution of oral infectious diseases in lacunar stroke based on meta-analysis and Mendelian randomization study.

Zheng Qifan, Xu Tong, Luo Shiyin, et al. · Scientific reports · 2025 · PubMed · doi:10.1038/s41598-025-99742-x

Oral HealthDental cariesAMSTAR 2: not applicable
Full textEvery question was extracted from the full text, figures and supplements by two independent LLM extractors, disagreements adjudicated. Rows cite where in the review the value comes from.
Questions
11
current version
GRADE rated
0
No studies
2
Included studies
10
linked below
No studies 2 · 18.2%Ungraded 9 · 81.8%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Review question

ElementPlanned (methods)Found (results)
PopulationAdultsAdults; 5 cross-sectional studies from Japan and Republic of Chile (sample sizes 110 to 370); MR used European-ancestry GWAS (n=5 included studies)
InterventionOral infectious diseases: dental caries, pulp and periapical diseases, periodontitisPeriodontitis (meta-analysis); genetically predicted periodontitis, dental caries, and pulp and periapical diseases (MR)
ComparisonPatients without oral infectious diseasesIndividuals without periodontitis or without lacunar stroke; lower genetic liability (MR)
OutcomesLacunar strokeLacunar stroke; periodontal indices (probing depth, clinical attachment level, PISA, full-mouth bleeding score)
Study designsMeta-analysis of cross-sectional studies; two-sample Mendelian randomization using GWAS summary dataCross-sectional studies (n=5); two-sample Mendelian randomization
TimingNot specifiedNot specified (cross-sectional)

Search date: August 2024. Databases: PubMed; Cochrane Library; EMBASE; Web of Science; Google Scholar (grey literature); EU Clinical Trials Registry

Questions and results

Periodontitis vs Without periodontitis

Population: Adults
1 question
OutcomeEffectEvidenceStatus / GRADE
Lacunar stroke
Individuals with periodontitis had about five times higher odds of lacunar stroke than those without periodontitis (pooled OR 5.16); ungraded cross-sectional evidence, with the caution that the three studies came from one research team.
Source: Results, 'Periodontitis may serve as a potential risk factor for lacunar stroke'; Fig. 3 · same question in other reviews
OR 5.16 [3.68, 7.24]3 studiesUngraded

Lacunar stroke (cases) vs Without lacunar stroke (controls)

Population: Adults
4 questions
OutcomeEffectEvidenceStatus / GRADE
Periodontal inflamed surface area (PISA)
Patients with lacunar stroke had a larger periodontal inflamed surface area than those without (MD 849.92); ungraded, no heterogeneity.
Source: Results, 'The periodontitis surface area and the total mouth bleeding score in individuals with lacunar stroke were significantly… · same question in other reviews
MD 849.92 [698.86, 1000.98]2 studiesUngraded
Clinical attachment level (CAL)
Patients with lacunar stroke had greater clinical attachment loss than those without (MD 1.34); ungraded, with substantial heterogeneity (I2 = 95%).
Source: Results, 'The periodontitis surface area and the total mouth bleeding score in individuals with lacunar stroke were significantly… · same question in other reviews
MD 1.34 [0.63, 2.05]4 studiesUngraded
Periodontal probing depth (PD)
Patients with lacunar stroke had greater periodontal probing depth than those without (MD 0.98); ungraded, with substantial heterogeneity (I2 = 88%).
Source: Results, 'The periodontitis surface area and the total mouth bleeding score in individuals with lacunar stroke were significantly… · same question in other reviews
MD 0.98 [0.57, 1.38]4 studiesUngraded
Full-mouth bleeding score (FMBS)
Patients with lacunar stroke had a higher full-mouth bleeding score than those without (MD 31.26); ungraded, no heterogeneity.
Source: Results, 'The periodontitis surface area and the total mouth bleeding score in individuals with lacunar stroke were significantly… · same question in other reviews
MD 31.26 [28.82, 33.70]3 studiesUngraded

Dental caries vs Without dental caries

Population: Adults
1 question
OutcomeEffectEvidenceStatus / GRADE
Lacunar stroke
No eligible studies were found for the association between dental caries and lacunar stroke in the meta-analysis.
Source: Results, 'Study selection' (no studies on dental caries and LS identified); Methods, 'Meta-analysis' PICO · same question in other reviews
No studies addressing the association between dental caries and LS were identified.0 studiesNo studies

Pulp and periapical diseases vs Without pulp and periapical diseases

Population: Adults
1 question
OutcomeEffectEvidenceStatus / GRADE
Lacunar stroke
No eligible studies were found for the association between pulp and periapical diseases and lacunar stroke in the meta-analysis.
Source: Results, 'Study selection' (no studies on pulp and periapical diseases and LS identified); Methods, 'Meta-analysis' PICO · same question in other reviews
No studies addressing the association between pulp and periapical diseases and LS were identified.0 studiesNo studies

Genetically predicted periodontitis vs Without periodontitis (lower genetic liability)

Population: European-ancestry adults (GWAS)
1 question
OutcomeEffectEvidenceStatus / GRADE
Lacunar stroke
Genetically predicted periodontitis was associated with modestly higher odds of lacunar stroke (OR 1.24); ungraded MR, though the FDR-adjusted P was 0.064 for the primary IVW-FE method (ML-adjusted P 0.037).
Source: Results, 'Periodontitis and diseases of the pulp and periapical tissues may pose potential risk factors for lacunar stroke'; Fig. 5;… · same question in other reviews
OR 1.24 [1.03, 1.49]NRUngraded

Genetically predicted pulp and periapical diseases vs Without pulp and periapical diseases (lower genetic liability)

Population: European-ancestry adults (GWAS)
1 question
OutcomeEffectEvidenceStatus / GRADE
Lacunar stroke
Genetically predicted pulp and periapical diseases were associated with modestly higher odds of lacunar stroke (OR 1.20); ungraded MR, FDR-adjusted P 0.033.
Source: Results, 'Periodontitis and diseases of the pulp and periapical tissues may pose potential risk factors for lacunar stroke'; Fig. 5;… · same question in other reviews
OR 1.20 [1.03, 1.41]NRUngraded

Genetically predicted dental caries vs Without dental caries (lower genetic liability)

Population: European-ancestry adults (GWAS)
1 question
OutcomeEffectEvidenceStatus / GRADE
Lacunar stroke
Genetically predicted dental caries showed no significant causal association with lacunar stroke (ungraded MR).
Source: Results, 'Periodontitis and diseases of the pulp and periapical tissues may pose potential risk factors for lacunar stroke' (dental… · same question in other reviews
OR 0.92 [0.69, 1.23]NRUngraded

Comparison

1 question
OutcomeEffectEvidenceStatus / GRADE
Lacunar stroke
Mediation via IL-1α, IL-6, TNF, CRP (two-step MR)
Indirect effect No mediating effectNRUngraded

Included primary studies 10

Open as a trial list
StudyAlso included byOutcomes it informs hereTrial PICOResults
Ito 2022
Risk assessment of lacunar infarct associated with oral conditions: A case control study focused on radiographic bone loss and Eichner…
DOI:10.2186/jpr.jpr_d_20_00310
this review onlynot statednot extracted yetnot extracted yet
Ito 2022
Risk assessment of lacunar infarct associated with oral conditions: A case control study focused on radiographic bone loss and Eichner…
PMID:34511558
this review onlynot statednot extracted yetnot extracted yet
Leira 2016
Chronic periodontitis is associated with lacunar infarct: a case-control study.
PMID:27418418
this review onlynot statednot extracted yetnot extracted yet
Leira 2016 (Eur J Neurol)
Chronic periodontitis is associated with lacunar infarct: a case–control study
DOI:10.1111/ene.13080
this review onlynot statednot extracted yetnot extracted yet
Leira 2019
Periodontitis as a risk indicator and predictor of poor outcome for lacunar infarct.
PMID:30362631
this review onlynot statednot extracted yetnot extracted yet
Leira 2019
Periodontitis is associated with systemic inflammation and vascular endothelial dysfunction in patients with lacunar infarct.
PMID:30417380
this review onlynot statednot extracted yetnot extracted yet
Leira 2019 (J Clin Periodontol)
Periodontitis as a risk indicator and predictor of poor outcome for lacunar infarct
DOI:10.1111/jcpe.13032
this review onlynot statednot extracted yetnot extracted yet
Leira 2019 (J Periodontol)
Periodontitis is associated with systemic inflammation and vascular endothelial dysfunction in patients with lacunar infarct
DOI:10.1002/jper.18-0560
this review onlynot statednot extracted yetnot extracted yet
Taguchi 2013
Association between Oral Health and the Risk of Lacunar Infarction in Japanese Adults
DOI:10.1159/000353707
this review onlynot statednot extracted yetnot extracted yet
Taguchi 2013
Association between oral health and the risk of lacunar infarction in Japanese adults.
PMID:23942139
this review onlynot statednot extracted yetnot extracted yet