Evidence map›Paper›PMID 31484557›Full record

Observational studyBMC oral health2019

Observational cross-sectional study of Trichomonas tenax in patients with periodontal disease attending a Chilean university dental clinic.

Casandra Bracamonte-Wolf, Patricio R Orrego, Christian Muñoz, Daniel Herrera, Joel Bravo, Jorge Gonzalez, Héctor Varela, Alejandro Catalán, Jorge E Araya

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in BMC oral health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

9 citing papers in PubMed, 28 citations in OpenAlex.

  1. Transmission Dynamics ofMicroorganisms · 2025
    Article
  2. Review
  3. Review
  4. Risk factors and approaches for detection ofThe Saudi dental journal · 2024
    Review
  5. Tropical medicine and infectious disease · 2023
    Article
  6. Article
  7. Pyopneumothorax Caused byInfection and drug resistance · 2022
    Article
  8. Article
  9. Oral Colonization byFrontiers in cellular and infection microbiology · 2021
    Article
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 1 institution in 1 country.

Casandra Bracamonte-WolfLaboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile.
Patricio R OrregoBiomedical Departmen, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile.
Christian MuñozLaboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile.
Daniel HerreraLaboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile.
Joel BravoDepartment of Dentistry, Faculty of Medicine and Dentistry, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile.
Jorge GonzalezLaboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile.
Héctor VarelaDepartment of Mathematics, Faculty of Basic Sciences, Universidad de Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile.
Alejandro CatalánLaboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile.
Jorge E ArayaLaboratory of Molecular Parasitology, Department of Medical Technology, Faculty of Health Sciences, University of Antofagasta, Angamos Avenue 601, P.O. Box 170, Antofagasta, Chile. jorge.araya@uantof.cl.ORCID 0000-0002-4654-7816
Universidad de Antofagasta · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe oral flagellated protozoan Trichomonas tenax has been associated with patients with periodontal disease. However, no recent studies have been conducted on the prevalence of T. tenax in Chile. The aim of this study was to determine the presence of T. tenax in patients with periodontal disease, admitted to the Dental Clinic of the University of Antofagasta, Chile, through Polymerase Chain Reaction (PCR) amplification of the beta-tubulin gene.

methodsAn observational, cross-sectional study was conducted on 50 patients diagnosed with periodontal disease, 20 of them with gingivitis and 30 with periodontitis. T. tenax was identified by PCR amplification of the beta-tubulin gene. Associations between the protozoan and periodontal disease or the presence of risk factors to establish T. tenax infection were determined using the chi-square test and binary logistic regression analysis.

resultsT. tenax was present in 28 out of 50 (56%) of patients with periodontal disease, and was more prevalent when associated with periodontitis (21 out of 30; 70%) than dental plaque-induced gingivitis (7 out of 20; 35%). Non-statistically-significant associations were observed between the presence of T. tenax and age, gender, smoking habit or diabetes. Statistically significant associations were observed between the presence of T. tenax and periodontal disease, and between T. tenax and the Periodontal Screening and Recording (PSR) index.

conclusionT. tenax showed a high presence in patients with progressive states of periodontal diseases. Consequently, T. tenax detection is strongly recommended in patients with periodontal disease diagnosis and with a PSR index greater than 3.

Indexed as

AdultAgedAged, 80 and overChileCross-Sectional StudiesDental ClinicsFemaleGene AmplificationGingivitisHumansMaleMiddle AgedPeriodontal DiseasesPolymerase Chain ReactionPrevalenceTrichomonasTubulinGingivitisPCRPeriodontal diseasePeriodontitisTrichomonas tenax

Identifiers

PMID31484557
PMCPMC6727549
OpenAlexW2971443780

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.