Evidence map›Paper›PMID 42244169›Full record

ArticleJournal of periodontology2026

Exploring the association between vitamin C intake and gingival bleeding tendency in healthy, non‑deficient young adults.

Thijs M H de Jong, Dagmar E Slot, Cees Valkenburg, Bruno G Loos, Fridus A van der Weijden

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. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Thijs M H de JongDepartment of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.ORCID https://orcid.org/0009-0008-3491-398X
Dagmar E SlotDepartment of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.ORCID https://orcid.org/0000-0001-7234-0037
Cees ValkenburgDepartment of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.ORCID https://orcid.org/0000-0002-6656-6934
Bruno G LoosDepartment of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.ORCID https://orcid.org/0000-0002-8794-552X
Fridus A van der WeijdenDepartment of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.ORCID https://orcid.org/0000-0002-5075-8384

Funding

ACTA Dental Research BVDepartment of Periodontology of ACTATop Institute Food and Nutrition
6 · The paper itself

Abstract

backgroundThe aim of this study is to investigate the relationship between reported vitamin C intake and gingival bleeding severity.

methodsIn this cross-sectional study, 336 participants were screened, and 262 (118 females, 144 males) were eligible. Vitamin C intake was derived from the Food Frequency Questionnaire (FFQ). The body mass index (BMI), plaque index (PI), bleeding on marginal probing (BOMP), and bleeding on pocket probing (BOPP) were scored. Means and standard deviations (SD) were calculated overall and by sex. Spearman's correlations assessed links between vitamin C intake and clinical variables. Sex differences were analyzed using Fisher's exact test and the Mann-Whitney U test. Generalized regression models evaluated relationships between BOMP/BOPP and vitamin C intake, sex, age, and PI.

resultsThe participants had a mean age of 22.6 years, mean BMI of 22.9 kg/m

conclusionIn this non‑deficient young adult population, vitamin C intake was not significantly associated with gingival bleeding after adjusting for covariates. Gingival bleeding was positively associated with PI and negatively with age.

Indexed as

Ascorbic AcidGingival HemorrhageAdolescentAdultAge FactorsBody Mass IndexCross-Sectional StudiesDental Plaque IndexFemaleHumansMalePeriodontal IndexSex FactorsYoung AdultAscorbic Acidbleedinggingival bleedinggingivitisnutritionvitamin C

Identifiers

PMID42244169
PMCPMC13569008

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.