Evidence map›Paper›PMID 28771699›Full record

ArticleInternational dental journal2018

Support vector machine-based differentiation between aggressive and chronic periodontitis using microbial profiles.

Magda Feres, Yoram Louzoun, Simi Haber, Marcelo Faveri, Luciene C Figueiredo, Liran Levin

Registry-linked trialAbstract read
In one paragraph

Article in International dental journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05348109 (Assessment of Decision Support System Software in Extraction and Anchorage Planning Among Adult Patients Using Computer Algorithm), which is not on this map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing 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.

NCT05348109 unknown statusnot on this mapstarted 2022, after this paper: background citation

Assessment of Decision Support System Software in Extraction and Anchorage Planning Among Adult Patients Using Computer Algorithm

Typeobservational_patient_registrySponsorCairo UniversityRan2022 to 2023Enrolled80ConditionsCases That Need Extraction of Teeth in Orthodontics, Anchorage PlanningArmsWell finished cases
3 · Its place in the literature

Who cites it

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

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Evaluating the Accuracy, Reliability, Consistency, and Readability of Different Large Language Models in Restorative Dentistry.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2025
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Frontiers in cellular and infection microbiology · 2024
    Article
  13. Review
  14. Role of Biofilms in Waste Water Treatment.Applied biochemistry and biotechnology · 2023
    Review
  15. Article
  16. Article
  17. Article
  18. Frontiers in oral health · 2022
    Article
  19. Article
  20. Review
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

6 authors.

Magda FeresDepartment of Periodontology, Guarulhos University, Guarulhos, SP, Brazil.
Yoram LouzounDepartment of Mathematics, Bar-Ilan University, Ramat-Gan, Israel.
Simi HaberDepartment of Mathematics, Bar-Ilan University, Ramat-Gan, Israel.
Marcelo FaveriDepartment of Periodontology, Guarulhos University, Guarulhos, SP, Brazil.
Luciene C FigueiredoDepartment of Periodontology, Guarulhos University, Guarulhos, SP, Brazil.
Liran LevinDivision of Periodontology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe existence of specific microbial profiles for different periodontal conditions is still a matter of debate. The aim of this study was to test the hypothesis that 40 bacterial species could be used to classify patients, utilising machine learning, into generalised chronic periodontitis (ChP), generalised aggressive periodontitis (AgP) and periodontal health (PH).

methodSubgingival biofilm samples were collected from patients with AgP, ChP and PH and analysed for their content of 40 bacterial species using checkerboard DNA-DNA hybridisation. Two stages of machine learning were then performed. First of all, we tested whether there was a difference between the composition of bacterial communities in PH and in disease, and then we tested whether a difference existed in the composition of bacterial communities between ChP and AgP. The data were split in each analysis to 70% train and 30% test. A support vector machine (SVM) classifier was used with a linear kernel and a Box constraint of 1. The analysis was divided into two parts.

resultsOverall, 435 patients (3,915 samples) were included in the analysis (PH = 53; ChP = 308; AgP = 74). The variance of the healthy samples in all principal component analysis (PCA) directions was smaller than that of the periodontally diseased samples, suggesting that PH is characterised by a uniform bacterial composition and that the bacterial composition of periodontally diseased samples is much more diverse. The relative bacterial load could distinguish between AgP and ChP.

conclusionAn SVC classifier using a panel of 40 bacterial species was able to distinguish between PH, AgP in young individuals and ChP.

Indexed as

Support Vector MachineAdultAggressive PeriodontitisBacterial LoadBiofilmsChronic PeriodontitisFemaleGingivaHumansMaleMiddle AgedPrincipal Component Analysismathematicsoral healthperiodontitisPlaqueprevention

Identifiers

PMID28771699
PMCPMC9378912

What OpenQuestion holds

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Registered trials

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.