Evidence map›Paper›PMID 39760976›Full record

Trial reportInternational journal of implant dentistry2025

Effect of nanogold incorporation into polymethyl methacrylate denture bases on microbial activity in implant-retained mandibular overdentures.

Yasmin S Zidan, Reham H Abdel-Hamid, Reham M Elshiekh, Sara M El Gohary

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in International journal of implant dentistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

2 citing papers in PubMed.

  1. Review
  2. 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

4 authors.

Yasmin S ZidanLecturer at removable prosthodontic department, Faculty of dental medicine for Girls, Al-Azhar University, Cairo, Egypt. Dentist.jasmindodo@gmail.com.
Reham H Abdel-HamidLecturer at removable prosthodontic department, Faculty of dental medicine for Girls, Al-Azhar University, Cairo, Egypt.
Reham M ElshiekhLecturer at removable prosthodontic department, Faculty of dental medicine for Girls, Al-Azhar University, Cairo, Egypt.
Sara M El GoharyLecturer at removable prosthodontic department, Faculty of dental medicine for Girls, Al-Azhar University, Cairo, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIn this randomized clinical trial, we examined the incorporation of nanogold particles into polymethyl methacrylate denture bases and compared these modified bases with conventional ones in mandibular implant-retained overdentures, focusing on microbiological growth and adhesion characteristics.

methodsIn this study, twenty-two male patients who were completely edentulous participated in a rehabilitation program involving mandibular overdentures retained by two dental implants placed in the canine area. The subjects were categorized into two equal groups, each comprising eleven patients. Group I received mandibular overdentures fabricated from conventional acrylic denture bases, whereas Group II received mandibular overdentures with bases that had undergone nanogold treatment. Microbial growth and colonization were evaluated around the implant's necks and the fitting surface of each patient's mandibular dentures. Three types of bacteria were studied: Candida albicans, Escherichia coli, and Streptococcus mutans. The mean difference in the counts of bacteria before the denture was inserted and after two, four, and six months has been calculated and analyzed statistically.

resultsRegarding colony count (log 10 CFUs/mmL), there was a significant difference between the research groups. Group II had significantly lower values measured at 2, 4, and 6 months for Candida albicans, Escherichia coli, and Streptococcus mutans, respectively, than group I.

conclusionThe addition of gold nanoparticles to PMMA denture bases was of greater benefit in inhibiting microbial growth than conventional acrylic resin bases.

Indexed as

Denture BasesDenture, OverlayGoldPolymethyl MethacrylateAgedBacterial AdhesionCandida albicansDental Prosthesis, Implant-SupportedDenture, Complete, LowerEscherichia coliHumansMaleMandibleMetal NanoparticlesMiddle AgedStreptococcus mutansGoldPolymethyl MethacrylateAntimicrobial activityImplantNanogold

Identifiers

PMID39760976
PMCPMC11704106

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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.