Evidence map›Paper›PMID 40491325›Full record

ArticleJournal of periodontology2026

Association between high serum ferritin and periodontitis: A population-based cross-sectional preliminary study.

Susilena Arouche Costa, Cecilia Cláudia Costa Ribeiro, Ana Regina Oliveira Moreira, Gustavo G Nascimento, Soraia de Fátima Carvalho Souza

Abstract read
In one paragraph

Article in Journal of periodontology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Susilena Arouche CostaPostgraduate Program in Dentistry, Federal University of Maranhão, São Luís, Maranhão, Brazil.ORCID https://orcid.org/0000-0002-9010-7930
Cecilia Cláudia Costa RibeiroPostgraduate Program in Dentistry, Federal University of Maranhão, São Luís, Maranhão, Brazil.ORCID https://orcid.org/0000-0003-0041-7618
Ana Regina Oliveira MoreiraPostgraduate Program in Dentistry, Federal University of Maranhão, São Luís, Maranhão, Brazil.ORCID https://orcid.org/0000-0003-3756-2675
Gustavo G NascimentoNational Dental Research Institute Singapore, National Dental Centre Singapore, Singapore, Singapore.ORCID https://orcid.org/0000-0002-4288-6300
Soraia de Fátima Carvalho SouzaPostgraduate Program in Dentistry, Federal University of Maranhão, São Luís, Maranhão, Brazil.ORCID https://orcid.org/0000-0002-8730-8600

Funding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior- Brasil (CAPES) 001
6 · The paper itself

Abstract

backgroundThe aim of this study was to investigate the association between high serum ferritin levels and periodontitis considering pathways induced by sociodemographic and behavioral factors, serum inflammation, and metabolic risk.

methodsData from 7283 individuals who participated in the Third National Health and Nutrition Examination Survey (NHANES III) were analyzed. We estimated indirect and direct pathways for the association between high serum ferritin levels (in quintiles) and periodontitis. A theoretical model was constructed to evaluate the association between high serum ferritin and periodontitis, considering direct and indirect (mediated) pathways, including poverty, age, smoking, alcohol consumption, obesity, iron consumption, serum inflammation (C-reactive protein [CRP]), and insulin resistance (Homeostatic Model Assessment of Insulin Resistance [HOMA-IR]), analyzing through structural equation modeling (SEM).

resultsHigher ferritin levels were directly associated with periodontitis (standardized coefficient [SC] = 0.074, standardized error [SE] = 0.033, p-value = 0.025). Furthermore, higher ferritin mediated the association between serum inflammation (SC = 0.012, SE = 0.005, p-value = 0.033) and periodontitis.

conclusionHigher ferritin levels may play a role in periodontitis as part of a systemic inflammation mechanism. PLAIN LANGUAGE SUMMARY: Mechanisms that justify the association between increased ferritin and periodontitis are still poorly understood. Ferritin is the main marker of iron stores, but it can be influenced by several factors that are also related to periodontitis. Our study investigated indirect (inflammatory) and direct (local) mechanisms for the association between ferritin and periodontitis. The systemic inflammatory mechanism partially explained the association between ferritin and periodontitis. Elevated ferritin levels remained directly associated with periodontitis even after adjustment for confounding, indicating the possibility of a direct mechanism. Elevated levels of ferritin may contribute to the severity and extent of periodontitis.

Indexed as

FerritinsPeriodontitisAdultAgedAlcohol DrinkingBiomarkersC-Reactive ProteinCross-Sectional StudiesFemaleHumansInflammationInsulin ResistanceMaleMiddle AgedNutrition SurveysRisk FactorsBiomarkersC-Reactive ProteinFerritinsferritininflammationironperiodontal diseaseperiodontitis

Identifiers

PMID40491325
PMCPMC12902711

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.