Evidence map›Paper›PMID 33580351›Full record

Trial reportClinical oral investigations2021

Maxillary dentoskeletal outcomes of the expander with differential opening and the fan-type expander: a randomized controlled trial.

Camila Massaro, Daniela Garib, Lucia Cevidanes, Guilherme Janson, Marilia Yatabe, José Roberto Pereira Lauris, Antonio Carlos Ruellas

2 registry-linked trialsOpen access · greenAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Clinical oral investigations, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
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.

NCT03705871 nacompletednot on this map

Maxillary Expander With Differential Opening Versus Fan-type Expander: a Randomized Clinical Trial

TypeinterventionalSponsorUniversity of Sao PauloRan2017 to 2019Enrolled48ConditionsMalocclusion, Crossbite (Posterior)ArmsDifferential Expansion, Fan-Fype Expander
NCT04997083 naunknown statusnot on this map

Evaluation of the Treatment Outcome of Cleft Palate Patients Treated With Differential Opening Expander With Slow Protocol and Face Mask

TypeinterventionalSponsorFaculty of Dental Medicine for GirlsRan2021 to 2023Enrolled10ConditionsCleft Lip and PalateArmsMaxillary Expander with Differential Opening (EDO), Petit face mask
3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Orthodontic treatment for posterior crossbites.The Cochrane database of systematic reviews · 2021
    Pooled it
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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

7 authors at 3 institutions in 2 countries.

Camila MassaroDepartment of Orthodontics, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil. camilamassaro@usp.br.ORCID http://orcid.org/0000-0001-6011-7946
Daniela GaribDepartment of Orthodontics, Bauru Dental School and Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
Lucia CevidanesDepartment of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, 1011 N University Avenue, Ann Arbor, MI, 48109, USA.
Guilherme JansonDepartment of Orthodontics, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
Marilia YatabeDepartment of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, 1011 N University Avenue, Ann Arbor, MI, 48109, USA.
José Roberto Pereira LaurisDepartment of Community Health, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
Antonio Carlos RuellasDepartment of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, 1011 N University Avenue, Ann Arbor, MI, 48109, USA.
Universidade de São Paulo · BRUniversity of Michigan · USUniversidade Federal do Rio de Janeiro · BR

Funding

Quantification of 3D Bony Changes in Temporomandibular Joint OsteoarthritisR01DE024450 · NIDCR · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Lucia H Cevidanes · 2013 to 2026
$5.5M
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Finance Code 001Fundação de Amparo à Pesquisa do Estado de São Paulo 2017/12911-9Fundação de Amparo à Pesquisa do Estado de São Paulo 2017/24115-2NIDCR NIH HHS R01 DE024450
6 · The paper itself

Abstract

objectivesThe aim of this study was to compare the maxillary dentoskeletal outcomes of the expander with differential opening (EDO) and the fan-type expander (FE). MATERIAL AND

methodsForty-eight patients with maxillary arch constriction in the mixed dentition were randomly allocated into EDO and FE groups. Cone-beam computed tomography scans were acquired before and after expansion. Linear and angular three-dimensional changes were assessed after cranial base superimposition using the ITK-SNAP and the 3D Slicer software. T or Mann-Whitney U tests were used for intergroup comparisons (P<0.05).

resultsThe EDO group comprised 24 patients treated with the EDO (13 female, 11 male; 7.6 years). The FE group comprised 24 patients treated with the FE (14 female, 10 male; 7.8 years). Skeletal lateral displacements were greater in the EDO group with greater expansion in the orbital, nasal cavity, zygomatic bone, and palate regions (mean intergroup differences of 0.4, 0.8, 0.9, and 1.1 mm, respectively). Intercanine expansion and canine buccal inclination were greater in the FE group, while intermolar distance changes and molar buccal inclination were greater in the EDO group. Similar changes were observed for vertical and anteroposterior displacements and palatal plane rotation.

conclusionsThe EDO produced greater transverse skeletal expansion compared to the FE, with similar vertical and anteroposterior effects. Dental changes were greater in the molar region for patients treated with the EDO and in the canine region for patients treated with the FE. CLINICAL RELEVANCE: The EDO and the FE are capable of producing skeletal changes in the mixed dentition. The decision between both expanders will depend on the amount of expansion required in the molar region and in the nasomaxillary complex.

trial registrationThe trial was registered at ClinicalTrials.gov , under the identifier NCT03705871.

Indexed as

Dental ArchPalatal Expansion TechniqueCone-Beam Computed TomographyDentition, MixedFemaleHumansMaleMaxillaImaging, three-dimensionalOrthodontic appliancesOrthodontics, interceptivePalatal expansion technique

Identifiers

PMID33580351
PMCPMC8357852
OpenAlexW3128570480

What OpenQuestion holds

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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.