Evidence map›Paper›PMID 31445509›Full record

ArticleTrials2019

Preformed pediatric zirconia crown versus preformed pediatric metal crown: study protocol for a randomized clinical trial.

Serena Lopez-Cazaux, Elody Aiem, Ana Miriam Velly, Michèle Muller-Bolla

3 registry-linked trialsOpen access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in Trials, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.8field-weighted citation impact, top 18% 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.

NCT03296709 nacompletednot on this map

Preformed Pediatric Crown Zirconia Versus Preformed Pediatric Metal Crown PPC Z-M

TypeinterventionalSponsorCentre Hospitalier Universitaire de NiceRan2018 to 2023Enrolled101ConditionsTooth DecayArmsPPC z, PPC m
NCT03630562 nacompletednot on this map

Assay of Pro-angiogenic Cytokines in Exudative Age-Related Macular Degeneration

TypeinterventionalSponsorCentre Hospitalier Universitaire de NiceRan2018 to 2021Enrolled100ConditionsAge Related Macular DegenerationArmsAqueous humor samples collection
NCT07357402 naactive not recruitingnot on this mapstarted 2025, after this paper: background citation

Comparison of Clinical Outcomes, Parent and Child Satisfaction Between Stainless Steel Crowns and Prefabricated Hybrid (Bioflx) Crowns in Primary Molars

TypeinterventionalSponsorPHAM LE ANH THYRan2025 to 2027Enrolled25ConditionsSeverely Decayed Primary Molars Requiring Full-Coverage CrownsArmsStainless Steel Crown, Bioflx crown
3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 40 citations in OpenAlex.

  1. Trial
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  3. Article
  4. Article
  5. Article
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  7. Clinical Evaluation of BioFlx Crowns for the Restoration of Primary Teeth.International journal of clinical pediatric dentistry · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Efficacy evaluation of zirconia crown on primary molars with caries defects.Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2024
    Article
  14. Review
  15. Article
  16. Article
  17. Fracture strength of preformed zirconia crown and new custom-made zirconia crown for the restoration of deciduous molars: in vitro study.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2022
    Article
  18. 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 at 3 institutions in 2 countries.

Serena Lopez-CazauxFaculty of Dentistry, Department of Pediatric Dentistry, Unité d'Investigation Clinique en Odontologie (Uic11), University and Hospital of Nantes, 1 place Alexis Ricordeau, BP 84215, 44042, Nantes Cedex 1, France. serena.lopez-cazaux@univ-nantes.fr.
Elody AiemDepartment of Pediatric Dentistry, Faculty of Dentistry, UNS-UCA, CHUN, Nice, France.
Ana Miriam VellyDental Department of Jewish General Hospital, Faculty of Dentistry, McGill University, Montréal, Canada.
Michèle Muller-BollaDepartment of Pediatric Dentistry, Faculty of Dentistry, Université Côte d'Azur, Centre Hospitalier Universitaire de Nice, Nice, France.
Centre Hospitalier Universitaire de Nantes · FRMcGill University · CAUniversité Côte d'Azur · FR

Funding

Institut Français de Recherche en Odontologie not applicable
6 · The paper itself

Abstract

backgroundGuidelines in pediatric restorative dentistry recommend the use of preformed pediatric stainless steel crowns (SSCs) in cases of severe tooth decay of at least two surfaces. This clinically effective and safe restorative option is frequently refused by parents for esthetic reasons; they prefer conventional restorations using esthetic filling materials (composites, glass ionomer) if lesion severity limited to two surfaces permits. Recently, manufacturers have proposed esthetic preformed pediatric zirconia crowns (ZCs) but these have been assessed in only two randomized clinical trials (RCT) with follow-ups of 6 and 12 months. Only one of these RCTs was carried out on primary molars to test ZCs (NuSmile ZR) without a groove in its inner surface. The primary objective of this proposed RCT is to assess the effectiveness of ZCs compared with SSCs. Our hypothesis is that the effectiveness of ZCs will be equivalent to that of SSCs.

methodsIn this split-mouth, 2-year RCT, pairs of primary molars in 101 child participants will be randomized and restored with SSCs (ESPE, 3M) and ZCs (EZCrowns, Sprig Oral Health Technologies) characterized by grooves on their inner surface. Primary molars will first be allocated to SSCs, and 1 to 2 weeks later the other primary molar of the same pair will be restored by ZC. The primary outcome is the success defined by the "absence of major clinical and radiographic failure" (e.g., pain, pulp infection, dental abscess or periradicular pathology visible on radiographs). The secondary outcomes include the retention and fracture rates, the gingival condition, the wear of the antagonist of the treated teeth, as well as both parental and child satisfaction. DISCUSSION: This study will investigate two types of preformed pediatric crowns for the management of severe decay on primary molars. The results may help practitioners choose the better therapeutic option and to explain to parents the advantages and disadvantages of these two therapies.

trial registrationNCT03296709 . Registered on  27 September 2017.

Indexed as

CrownsDental Care for ChildrenZirconiumAdolescentAge FactorsChildChild, PreschoolDental CariesDental Prosthesis DesignDental Restoration FailureDental Restoration, PermanentFemaleFranceHumansMaleMolarZirconiumzirconium oxideCarious lesionPrimary molarStainless steel crownStructural anomalyZirconia pediatric crown

Identifiers

PMID31445509
PMCPMC6708228
OpenAlexW2969903510

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.