Evidence map›Paper›PMID 35569028›Full record

ArticleJournal of clinical periodontology2022

Association of oral bacteria with oral hygiene habits and self-reported gingival bleeding.

Randi Jacobsen Bertelsen, Antonio Manuel Perez Barrionuevo, Rajesh Shigdel, Stein Atle Lie, Huang Lin, Francisco Gomez Real, Tamar Ringel-Kulka, Anne Nordrehaug Åstrøm, Cecilie Svanes

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical periodontology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
5.4field-weighted citation impact, top 3% of its field
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

30 citing papers in PubMed, 44 citations in OpenAlex.

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  16. Influence of Different Litter Regimens on Ceca Microbiota Profiles inAnimals : an open access journal from MDPI · 2025
    Article
  17. Review
  18. Review
  19. Oral microbiota related to allergy in Norwegian adults.The journal of allergy and clinical immunology. Global · 2025
    Article
  20. Observational
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

9 authors at 5 institutions in 3 countries.

Randi Jacobsen BertelsenDepartment of Clinical Science, University of Bergen, Bergen, Norway.ORCID 0000-0001-5319-525X
Antonio Manuel Perez BarrionuevoCentre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
Rajesh ShigdelDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Stein Atle LieDepartment of Clinical Dentistry, University of Bergen, Bergen, Norway.
Huang LinRoche Product Development Shanghai, Roche (China) Holding Ltd., Shanghai, China.
Francisco Gomez RealDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Tamar Ringel-KulkaDepartment of Maternal and Child Health, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Anne Nordrehaug ÅstrømOral Health Centre of Expertise in Western Norway, Bergen, Norway.
Cecilie SvanesCentre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
University of Bergen · NOHaukeland University Hospital · NOWestern Norway University of Applied Sciences · NORoche (China) · CNUniversity of North Carolina at Chapel Hill · US

Funding

Bergen Medical Research FoundationEuropean Research Council 804199Norwegian Asthma and Allergy AssociationNorwegian Labour InspectionResearch Council of Norway 214123Research Council of Norway 228174Western Norwegian Regional Health Authorities 911631Western Norwegian Regional Health Authorities 911892Western Norwegian Regional Health Authorities 912011
6 · The paper itself

Abstract

aimTo describe associations of gingival bacterial composition and diversity with self-reported gingival bleeding and oral hygiene habits in a Norwegian regional-based population. MATERIALS AND

methodsWe examined the microbiome composition of the gingival fluid (16S amplicon sequencing) in 484 adult participants (47% females; median age 28 years) in the Respiratory Health in Northern Europe, Spain and Australia (RHINESSA) study in Bergen, Norway. We explored bacterial diversity and abundance differences by the community periodontal index score, self-reported frequency of gingival bleeding, and oral hygiene habits.

resultsGingival bacterial diversity increased with increasing frequency of self-reported gingival bleeding, with higher Shannon diversity index for "always" β = 0.51 and "often" β = 0.75 (p < .001) compared to "never" gingival bleeding. Frequent gingival bleeding was associated with higher abundance of several bacteria such as Porphyromonas endodontalis, Treponema denticola, and Fretibacterium spp., but lower abundance of bacteria within the gram-positive phyla Firmicutes and Actinobacteria. Flossing and rinsing with mouthwash twice daily were associated with higher total abundance of bacteria in the Proteobacteria phylum but with lower bacterial diversity compared to those who never flossed or never used mouthwash.

conclusionsA high frequency of self-reported gingival bleeding was associated with higher bacterial diversity than found in participants reporting no gingival bleeding and with higher total abundance of known periodontal pathogens such as Porphyromonas spp., Treponema spp., and Bacteroides spp.

Indexed as

MicrobiotaOral HygieneAdultFemaleGingival HemorrhageHabitsHumansMaleMouthwashesSelf ReportTreponema denticolaMouthwashesbacteriagingival bleedingmicrobiomeoral hygieneperiodontal health

Identifiers

PMID35569028
PMCPMC9542802
OpenAlexW4280504664

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.