Evidence map›Paper›PMID 35681128›Full record

ArticleBMC oral health2022

The antibacterial effect of silver, zinc-oxide and combination of silver/ zinc oxide nanoparticles coating of orthodontic brackets (an in vitro study).

Noha K Zeidan, Nagwa M Enany, Gehad Genidy Mohamed, Eiman S Marzouk

Open access · goldAbstract read
In one paragraph

Article in BMC oral health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 4% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Use of Antimicrobial Silver Coatings on Fixed Orthodontic Appliances, Including Archwires, Brackets, and Microimplants: A Systematic Review.Medical science monitor : international medical journal of experimental and clinical research · 2024
    Pooled it
  2. Trial
  3. Review
  4. Article
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  6. Article
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  8. Usage of Silver Nanoparticles in Orthodontic Appliances.Materials (Basel, Switzerland) · 2025
    Review
  9. Article
  10. Article
  11. Honey Compounds Exhibit Antibacterial Effects AgainstAntibiotics (Basel, Switzerland) · 2025
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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

4 authors at 2 institutions in 1 country.

Noha K ZeidanDepartment of Orthodontics, Faculty of Dentistry, Alexandria University, Champollion St., Azarita, P. O. Box 21521, Alexandria, Egypt. noha.zeidan.dent@alexu.edu.eg.
Nagwa M EnanyDepartment of Orthodontics, Faculty of Dentistry, Alexandria University, Champollion St., Azarita, P. O. Box 21521, Alexandria, Egypt.
Gehad Genidy MohamedChemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt.
Eiman S MarzoukDepartment of Orthodontics, Faculty of Dentistry, Alexandria University, Champollion St., Azarita, P. O. Box 21521, Alexandria, Egypt.
Alexandria University · EGCairo University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreventive measures are essential during the length of orthodontic treatment to reduce the risk of decalcification and white spot lesions formation. With the evolution of procedures that enable coating of the orthodontic brackets using nanoparticles known for their good antibacterial activity, coating the brackets with nanoparticles of silver, zinc oxide and combination of silver and zinc oxide to evaluate their antibacterial effect in comparison to a control group without coating was carried out in this study.

methodsFour groups of 12 brackets each were included in the study. The coating procedure was carried out using physical vapor deposition. The antibacterial activity was tested on Streptococcus mutans and Lactobacillus Acidophilus using colony forming count. The antibacterial activity was evaluated immediately after coating and later after 3 months.

resultsBrackets coated with combination of silver and zinc oxide nanoparticles had the highest ability on reduction of both Streptococcus mutans and Lactobacillus Acidophilus count followed by silver nanoparticles and then zinc oxide nanoparticles. No significant difference was found between the first and second antibacterial tests.

conclusionThe silver/zinc oxide nanoparticles coated brackets had the highest antibacterial effect in comparison to silver nanoparticles and zinc oxide nanoparticles individually coated brackets on Streptococcus mutans and Lactobacillus acidophilus, and all types of coatings showed enhanced antibacterial effect in comparison to the uncoated bracket. Coating of orthodontic brackets could be further assessed in clinical application to prevent decalcification.

Indexed as

Metal NanoparticlesOrthodontic BracketsZinc OxideAnti-Bacterial AgentsHumansLactobacillus acidophilusSilverStreptococcus mutansZincAnti-Bacterial AgentsSilverZincZinc OxideBracketsCoatingNanoparticlesOrthodonticsSilverZinc oxide

Identifiers

PMID35681128
PMCPMC9185939
OpenAlexW4281780154

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.