Evidence map›Paper›PMID 32504927›Full record

ArticleMedical hypotheses2020

Periodontal pockets: A potential reservoir for SARS-CoV-2?

Zahi Badran, Alexis Gaudin, Xavier Struillou, Gilles Amador, Assem Soueidan

Abstract read
In one paragraph

Article in Medical hypotheses, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 1 pooled it
–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

65 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  6. Infectious and Immunological Links Between Periodontitis and COVID-19: A Review.Medical science monitor : international medical journal of experimental and clinical research · 2025
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  15. Observational
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5 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

5 authors.

Zahi BadranDepartment of Periodontology (Rmes U1229, UIC 11), Faculty of Dental Surgery, University of Nantes (CHU de Nantes), Nantes, France; Faculty of Dentistry, McGill University, Montreal, Canada.
Alexis GaudinDepartment of Endodontics (Rmes U1229, UIC 11), Faculty of Dental Surgery, University of Nantes (CHU de Nantes), Nantes, France.
Xavier StruillouDepartment of Periodontology (Rmes U1229, UIC 11), Faculty of Dental Surgery, University of Nantes (CHU de Nantes), Nantes, France.
Gilles AmadorDepartment of Dental Public Health (UPRES EA 3826, UIC 11), Faculty of Dental Surgery, University of Nantes (CHU de Nantes), Nantes, France.
Assem SoueidanDepartment of Periodontology (Rmes U1229, UIC 11), Faculty of Dental Surgery, University of Nantes (CHU de Nantes), Nantes, France. Electronic address: assem.soueidan@univ-nantes.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Periodontal pockets are the major clinical manifestation of Periodontitis, a chronic inflammatory oral disease affecting the teeth-supporting tissues and has high prevalence in the adult population. Periodontal pockets are ideal environments for subgingival bacterial biofilms, that interact with the supragingival oral cavity, mucosal tissues of the pocket and a peripheral circulatory system. Periodontal pockets have been found to harbor viral species such as the Herpes simplex viruses' family. Recently, the SARS-CoV-2 has gained major interest of the scientific/medical community as it caused a global pandemic (Covid-19) and paralyzed the globe with high figures of infected people worldwide. This virus behavior is still partially understood, and by analyzing some of its features we hypothesized that periodontal pocket could be a favorable anatomical niche for the virus and thus acting as a reservoir for SARS-CoV-2.

Indexed as

BetacoronavirusAngiotensin-Converting Enzyme 2Clinical Laboratory TechniquesCoronavirus InfectionsCOVID-19COVID-19 TestingDisease ReservoirsHost Microbial InteractionsHumansModels, BiologicalMouth MucosaPandemicsPeptidyl-Dipeptidase APeriodontal PocketPneumonia, ViralReceptors, VirusACE2 protein, humanAngiotensin-Converting Enzyme 2Peptidyl-Dipeptidase AReceptors, Virus

Identifiers

PMID32504927
PMCPMC7833827

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.