Evidence map›Paper›PMID 22961460›Full record

ArticleClinical oral investigations2013

Analysis of the intraimplant microflora of two-piece dental implants.

Sönke Harder, Rainer Podschun, Livia Grancicova, Christian Mehl, Matthias Kern

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Article in Clinical oral investigations, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

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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

5 authors.

Sönke HarderDepartment of Prosthodontics, Propaedeutics and Dental Materials, Christian-Albrechts University, Arnold-Heller Str. 16, Kiel, 24105, Germany. sharder@proth.uni-kiel.de
Rainer Podschun
Livia Grancicova
Christian Mehl
Matthias Kern

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveInformation about the spectrum of microorganisms in the intraimplant cavities of two-piece dental implants is scarce. The purpose of this study was to assess the intraimplant microflora of two-piece dental implants by conventional biochemical testing, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), and 16 s rDNA gene sequencing. MATERIALS AND

methodsTen patients (six men and four women; average age = 66.7 years; age range = 58-78 years) received 35 two-piece titanium implants carrying ball attachments. Biofilm sampling was performed with sterile microbrushes, and nonadherent microbial samples were obtained by injection and reuptake of predefined volumes of NaCl solution. The samples were cultured and analyzed by conventional biochemical testing, MALDI-TOF MS, and 16 s rDNA gene sequencing.

resultsOf the 103 species detected, 27 and 33 were identified only in the biofilm and nonadherent microbial samples, respectively. Forty-three species were identified in both types of samples.

conclusionsTwo-piece dental implants harbored a broad spectrum of gram-positive and gram-negative aerobes and anaerobes, especially rods and cocci. CLINICAL RELEVANCE: These findings confirm bacterial translocation from the oral cavity to intraimplant cavities. Microbiological methods as used in this study are necessary to reveal the complete vital microflora of intraimplant cavities.

Indexed as

Dental Implant-Abutment DesignMicrobiotaAgedBacteria, AerobicBacteria, AnaerobicBiofilmsColony Count, MicrobialDental ImplantsDNA, BacterialFemaleGram-Negative Aerobic Rods and CocciGram-Negative Anaerobic CocciGram-Negative Anaerobic Straight, Curved, and Helical RodsGram-Positive CocciGram-Positive RodsHumansDental ImplantsDNA, Bacterial

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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.