Evidence map›Paper›PMID 30556922›Full record

ArticleJournal of clinical periodontology2019

An appraisal of the role of specific bacteria in the initial pathogenesis of periodontitis.

Peter Mark Bartold, Thomas E Van Dyke

Abstract readEditorial
In one paragraph

Article in Journal of clinical periodontology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers.

0numbers the graph read from it
0cells of the map it votes in
77citing 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

77 citing papers in PubMed.

  1. Trial
  2. Trial
  3. The Effect ofPolish journal of microbiology · 2020
    Trial
  4. The Role ofAntibiotics (Basel, Switzerland) · 2026
    Review
  5. Review
  6. Article
  7. Article
  8. The Role of Vitamin DNutrients · 2026
    Review
  9. Observational
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Hallmarks of Periodontitis.Current medicinal chemistry · 2025
    Review
  17. Microbial dysbiosis and immune dysregulation in periodontitis and peri-implantitis.Frontiers in cellular and infection microbiology · 2025
    Review
  18. Article
  19. Review
  20. Review

17 more citing papers are in PubMed but not listed here.

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

2 authors.

Peter Mark BartoldSchool of Dentistry, University of Adelaide, Adelaide, South Australia, Australia.ORCID 0000-0002-5695-3877
Thomas E Van DykeForsyth Institute, Cambridge, Massachusetts.

Funding

Mechanisms of Resolvin E1 in Periodontal RegenerationR01DE025020 · NIDCR · ADA FORSYTH INSTITUTE, INC. · PI GUASTALDI, FERNANDO, VAN DYKE, THOMAS ELLIOTT · 2015 to 2023
$4.9M
Roles for lymphocyte RANKL in periodontal complications of type 2 diabetesU01DE025383 · NIDCR · UNIVERSITY OF KENTUCKY · PI NIKOLAJCZYK, BARBARA, VAN DYKE, THOMAS ELLIOTT · 2018 to 2020
$1.7M
Phase 1/2 Clinical Trial to assess the safety and preliminary efficacy of Lipoxin Analog BLXA4-MEOral Rinse for the Treatment of GingivitisU01DE026934 · NIDCR · ADA FORSYTH INSTITUTE, INC. · PI HASTURK, HATICE, VAN DYKE, THOMAS ELLIOTT · 2016 to 2017
$1.4M
Roles for lymphocyte RANKL in periodontal complications of type 2 diabetesR01DE025383 · NIDCR · UNIVERSITY OF KENTUCKY · PI NIKOLAJCZYK, BARBARA, VAN DYKE, THOMAS ELLIOTT · 2016 to 2017
$1.2M
NIDCR NIH HHS R01 DE025020NIDCR NIH HHS R01 DE025383NIDCR NIH HHS U01 DE025383NIDCR NIH HHS U01 DE026934
6 · The paper itself

Abstract

backgroundHistorically, inflammatory periodontal diseases (gingivitis and periodontitis) have been recognized as being primarily of bacterial origin. Bacteria are necessary for disease development, but the presence of specific bacteria does not guarantee progression to periodontitis. Periodontitis is a multifactorial disease; specific bacteria are associated with disease, but may not be the target of treatment. Gingivitis and periodontitis are inflammatory conditions associated with bacterial overgrowth.

aimTo analyse evidence for established thought that specific bacteria directly participate in the pathogenesis of periodontitis and question the long-held tenet that penetration of the periodontal connective tissues by bacteria and their products is a significant phase in the initial development of periodontitis.

methodsThe literature was searched for studies on initiation of gingivitis and periodontitis by specific pathogens. The search results were insufficient for a systematic review and have been summarized in a commentary instead.

resultsThere is very little evidence in the literature to support the commonly held concept that specific bacteria initiate periodontitis.

conclusionWe present evidence for a paradigm supporting the central role of inflammation, rather than specific microbiota, in the early pathogenesis of periodontitis, and discuss whether controlling the inflammation can influence the character and composition of the periodontal infection.

Indexed as

BacteriaGingivitisPeriodontal DiseasesPeriodontitisHumansPeriodontiumbacterial invasiongingivitisperiodontal infectionperiodontal inflammationperiodontal pathogenperiodontitis

Identifiers

PMID30556922
PMCPMC6357965

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Registered trials

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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.