Evidence map›Paper›PMID 29061356›Full record

ArticleJournal of endodontics2018

Clindamycin-modified Triple Antibiotic Nanofibers: A Stain-free Antimicrobial Intracanal Drug Delivery System.

Ashley Karczewski, Sabrina A Feitosa, Ethan I Hamer, Divya Pankajakshan, Richard L Gregory, Kenneth J Spolnik, Marco C Bottino

Open access · bronzeAbstract read
In one paragraph

Article in Journal of endodontics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
9.0field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 83 citations in OpenAlex.

  1. Article
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  6. Journal of conservative dentistry and endodontics · 2025
    Article
  7. Article
  8. Review
  9. Article
  10. Article
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  12. Article
  13. Review
  14. Nanotechnology for Dentistry: Prospects and Applications.Nanomaterials (Basel, Switzerland) · 2023
    Review
  15. Article
  16. Article
  17. Expert consensus on regenerative endodontic procedures.International journal of oral science · 2022
    Review
  18. Review
  19. Review
  20. 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

7 authors at 2 institutions in 1 country.

Ashley KarczewskiDepartment of Biomedical and Applied Sciences, Indiana University School of Dentistry, Indianapolis, Indiana.
Sabrina A FeitosaDepartment of Biomedical and Applied Sciences, Indiana University School of Dentistry, Indianapolis, Indiana.
Ethan I HamerDepartment of Biomedical and Applied Sciences, Indiana University School of Dentistry, Indianapolis, Indiana.
Divya PankajakshanDepartment of Biomedical and Applied Sciences, Indiana University School of Dentistry, Indianapolis, Indiana.
Richard L GregoryDepartment of Biomedical and Applied Sciences, Indiana University School of Dentistry, Indianapolis, Indiana.
Kenneth J SpolnikDepartment of Endodontics, Indiana University School of Dentistry, Indianapolis, Indiana.
Marco C BottinoDepartment of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, Michigan. Electronic address: mbottino@umich.edu.
Indiana University – Purdue University Indianapolis · USUniversity of Michigan–Ann Arbor · US

Funding

NOVEL THERAPEUTICS TO TREAT NECROTIC TEETH: THE COMBINATORIAL EFFECT OF A 3D DRUG DELIVERY SYSTEM AND SPATIALLY DESIGNED STEM CELL NICHESR01DE026578 · NIDCR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BOTTINO, MARCO C · 2017 to 2021
$1.7M
A Novel Multilayered Membrane for Periodontal RegenerationK08DE023552 · NIDCR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BOTTINO, MARCO C · 2013 to 2017
$716k
NIDCR NIH HHS K08 DE023552NIDCR NIH HHS R01 DE026578
6 · The paper itself

Abstract

introductionA biocompatible strategy to promote bacterial eradication within the root canal system after pulpal necrosis of immature permanent teeth is critical to the success of regenerative endodontic procedures. This study sought to synthesize clindamycin-modified triple antibiotic (metronidazole, ciprofloxacin, and clindamycin [CLIN]) polymer (polydioxanone [PDS]) nanofibers and determine in vitro their antimicrobial properties, cell compatibility, and dentin discoloration.

methodsCLIN-only and triple antibiotic CLIN-modified (CLIN-m, minocycline-free) nanofibers were processed via electrospinning. Scanning electron microscopy, Fourier-transform infrared spectroscopy (FTIR), and tensile testing were performed to investigate fiber morphology, antibiotic incorporation, and mechanical strength, respectively. Antimicrobial properties of CLIN-only and CLIN-m nanofibers were assessed against several bacterial species by direct nanofiber/bacteria contact and over time based on aliquot collection up to 21 days. Cytocompatibility was measured against human dental pulp stem cells. Dentin discoloration upon nanofiber exposure was qualitatively recorded over time. The data were statistically analyzed (P < .05).

resultsThe mean fiber diameter of CLIN-containing nanofibers ranged between 352 ± 128 nm and 349 ± 128 nm and was significantly smaller than PDS fibers. FTIR analysis confirmed the presence of antibiotics in the nanofibers. Hydrated CLIN-m nanofibers showed similar tensile strength to antibiotic-free (PDS) nanofibers. All CLIN-containing nanofibers and aliquots demonstrated pronounced antimicrobial activity against all bacteria. Antibiotic-containing aliquots led to a slight reduction in dental pulp stem cell viability but were not considered toxic. No visible dentin discoloration upon CLIN-containing nanofiber exposure was observed.

conclusionsCollectively, based on the remarkable antimicrobial effects, cell-friendly, and stain-free properties, our data suggest that CLIN-m triple antibiotic nanofibers might be a viable alternative to minocycline-based antibiotic pastes.

Indexed as

Drug Delivery SystemsNanofibersAnti-Infective AgentsCells, CulturedCiprofloxacinClindamycinDental PulpDrug Therapy, CombinationHumansMetronidazoleAnti-Infective AgentsCiprofloxacinClindamycinMetronidazoleAntibioticclindamycindisinfectionelectrospinningnanofibersregenerationstem cells

Identifiers

PMID29061356
PMCPMC5732879
OpenAlexW2765106701

What OpenQuestion holds

Textmetadata
LicenceTDM
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.