Evidence map›Paper›PMID 35076902›Full record

ArticleEuropean archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry2022

Fracture strength of preformed zirconia crown and new custom-made zirconia crown for the restoration of deciduous molars: in vitro study.

J Elian El Hayek, N El Osta, N Farhat Mchayleh

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Article in European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.5field-weighted citation impact, top 22% 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

10 citing papers in PubMed, 11 citations in OpenAlex.

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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

3 authors at 1 institution in 2 countries.

J Elian El HayekDepartment of Pediatric Dentistry, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
N El OstaCranio-Facial Research Laboratory, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon. pronada99@hotmail.com.ORCID http://orcid.org/0000-0002-0958-5143
N Farhat MchaylehDepartment of Pediatric Dentistry, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
Saint Joseph University · LB

Funding

medical research council of saint joseph university of beirut FMD181
6 · The paper itself

Abstract

purposePreformed metal crown (PMC) were considered as the best method of restoring primary molars. In recent years, dentistry has seen the emergence of esthetic full-coverage restorative alternatives that gave better results but their ability to manipulate the size, shape, and fit is very limited. The milled zirconia crown is a new alternative for the restoration of deciduous teeth, but the mechanical properties of these restorations need to be tested.

aimTo assess and compare the force required to fracture on two posterior pedodontics crowns: a prefabricated Zirconia crowns (PZC) (NuSmile Zr Zirconia

methodsThirty freshly extracted deciduous molars were selected and were randomized into two groups: (1) molars prepared to receive the PZC and (2) molars prepared to receive the milled zirconia crowns. All pediatric crowns were cemented with glass ionomer and the samples were placed in the thermocycling machine for thermal aging of 1000 cycles. Mechanical compression forces were applied using the Universal Testing Machine until fracture of the crowns. The force required to fracture were evaluated. Since variable was normally distributed with Kolmogorov-Smirnov test, Student t test was used for statistical comparison.

resultsThis study showed that the mean fracture force was significantly elevated with zirconia crowns made with Zirkid

conclusionConsidering the limitations of the present in vitro study, further in vitro and in vivo studies are required to support the use of Zirkid

Indexed as

Flexural StrengthZirconiumChildCrownsDental Restoration FailureHumansMaterials TestingMolarZirconiumzirconium oxideDeciduous molarsFracture strengthMilled zirconia crownPrefabricated zirconia crown

Identifiers

PMID35076902
OpenAlexW4206978756

What OpenQuestion holds

Textmetadata
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.