Evidence map›Paper›PMID 21924178›Full record

ArticleJournal of endodontics2011

Antibiotic resistance in primary and persistent endodontic infections.

Gretchen B Jungermann, Krystal Burns, Renu Nandakumar, Mostafa Tolba, Richard A Venezia, Ashraf F Fouad

Erratum issuedAbstract read
In one paragraph

Article in Journal of endodontics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

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

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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

6 authors.

Gretchen B JungermannDepartment of Endodontics, Dental School, University of Maryland, Baltimore, Maryland 21201, USA.
Krystal Burns
Renu Nandakumar
Mostafa Tolba
Richard A Venezia
Ashraf F Fouad

Funding

Primary and Therapy-Resistant Endodontic InfectionsR01DE015320 · NIDCR · UNIVERSITY OF MARYLAND BALTIMORE · PI FOUAD, ASHRAF F · 2005 to 2008
$1.5M
NIDCR NIH HHS DE015320-01-A1NIDCR NIH HHS R01 DE015320
6 · The paper itself

Abstract

introductionThe presence of antibiotic resistance genes in endodontic microorganisms might render the infection resistant to common antibiotics. The aims of this project were to identify selected antibiotic resistance genes in primary and persistent endodontic infections and to determine the effectiveness of contemporary endodontic procedures in eliminating bacteria with these genes.

methodsIn patients undergoing primary endodontic treatment or retreatment, the root canals were aseptically accessed and sampled before endodontic procedures as well as after contemporary chemomechanical preparation and medication with calcium hydroxide. Identification of the following antibiotic resistance genes was performed by using polymerase chain reaction: bla(TEM-1), cfxA, blaZ, tetM, tetW, tetQ, vanA, vanD, and vanE. Limited phenotypic identification and antibiotic susceptibility verification were also performed.

resultsOverall, there were 45 specimens available for analysis, 30 from primary and 15 from persistent endodontic infections. In preoperative specimens, only bla(TEM-1) was significantly more prevalent in primary versus persistent infections (P = .04). After contemporary treatment procedures, there was an overall reduction in prevalence of these genes (P < .001). bla(TEM-1) and tetW were significantly reduced (P < .05), cfxA, blaZ, and tetQ were eliminated, but there was no change in tetM. No specimens contained vanA, vanD, or vanE. Antibiotic susceptibility testing showed significant differences among the antibiotics (P < .001) and general concordance with the gene findings.

conclusionsbla(TEM)(-1) was more prevalent in primary than persistent infections. Vancomycin resistance was not present. The genes identified were reduced with treatment except for tetM. Genetic testing might be useful as a screening tool for antibiotic resistance.

Indexed as

Genes, BacterialAcute DiseaseAdultAgedAged, 80 and overbeta-Lactam ResistanceChronic DiseaseDental Pulp DiseasesDNA, BacterialDrug Resistance, BacterialHumansMicrobial Sensitivity TestsMiddle AgedPeriapical PeriodontitisRoot Canal IrrigantsRoot Canal PreparationDNA, BacterialRoot Canal Irrigants

Identifiers

PMID21924178
PMCPMC3176416

What OpenQuestion holds

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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.