Evidence map›Paper›PMID 34115334›Full record

ArticleEuropean archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry2021

The interaction and interference of preformed metal crowns on magnetic resonance imaging: a scoping review with a systematic methodology.

O Sumner, R Goldsmith, N Heath, G D Taylor

Abstract readScoping Review
In one paragraph

Article in European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry, 2021. 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. The influence of preformed metal crowns versus zirconia crowns on the diagnostic quality of magnetic resonance images.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2025
    Article
  2. 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

4 authors.

O SumnerSchool of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.
R GoldsmithNewcastle Upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, UK.
N HeathNewcastle Upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, UK.
G D TaylorSchool of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK. greig.taylor@newcastle.ac.uk.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePreformed metal crowns are widely used to restore primary and permanent teeth. Children may require magnetic resonance imaging (MRI) for diagnosis and monitoring of diseases in the head and neck region. Metallic objects, in the field of view, may compromise the diagnostic value of an MRI. The impact on the diagnostic quality of an MRI in children who have had preformed metal crowns placed has not been assessed. The aim of this systematic review was to evaluate the impact that PFMCs have on MRI imaging quality and thus the overall diagnostic value.

methodsElectronic searches of the following databases were completed: MEDLINE, EMBASE, Cochrane Library, Web of Science and Open Grey. Primary in vivo studies on children who had at least one preformed metal crown placed and required an MRI investigation were to be included. PRISMA guidelines were followed and screening/data extraction was carried out by two independent calibrated reviewers.

resultsA total of 7665 articles were identified. After removing duplicates, 7062 were identified for title and abstract screening. Thirty-four articles underwent full-text review, of which none met the inclusion criteria. Most common reasons for exclusion were not placing preformed metal crowns (n = 16) or in vitro studies (n = 12).

conclusionNo in vivo studies were identified to establish the hypothetical impact preformed metal crowns would have on the diagnostic quality of an MRI in the head and neck region. Decision making needs to be guided on a case by case basis. Further high-quality clinical studies are required.

Indexed as

CrownsMagnetic Resonance ImagingChildHumansMagnetic Resonance SpectroscopyArtefactsChildMRIPreformed metal crowns

Identifiers

PMID34115334
PMCPMC8629884

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.