Evidence map›Paper›PMID 34467450›Full record

Trial reportProgress in orthodontics2021

Mini Hyrax vs Hyrax expanders in the rapid palatal expansion in adolescents with posterior crossbite: a randomized controlled clinical trial.

Giordani Santos Silveira, Lucas Guimarães Abreu, Juan Martin Palomo, Larissa Salgado da Matta Cid Pinto, Adriana Alkmim de Sousa, Bruno Frazão Gribel, Dauro Douglas Oliveira

Open access · diamondAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Progress in orthodontics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 17% 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

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

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
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 4 institutions in 2 countries.

Giordani Santos SilveiraSchool of Dentistry, Pontifical Catholic University of Minas Gerais, Belo Horizonte, MG, Brazil. giordanisilveira@hotmail.com.ORCID http://orcid.org/0000-0001-9951-0024
Lucas Guimarães AbreuDepartment of Pediatric Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
Juan Martin PalomoDepartment of Orthodontics, Case Western Reserve University, Cleveland, OH, USA.
Larissa Salgado da Matta Cid PintoPrivate Practice, Belo Horizonte, MG, Brazil.
Adriana Alkmim de SousaSchool of Dentistry, Pontifical Catholic University of Minas Gerais, Belo Horizonte, MG, Brazil.
Bruno Frazão GribelPrivate Practice, Belo Horizonte, MG, Brazil.
Dauro Douglas OliveiraSchool of Dentistry, Pontifical Catholic University of Minas Gerais, Belo Horizonte, MG, Brazil.
Pontifícia Universidade Católica de Minas Gerais · BRPrefeitura Municipal de Belo Horizonte · BRCase Western Reserve University · USUniversidade Federal de Minas Gerais · BR

Funding

Associação Fundo de Incentivo à Pesquisa (FIP) PUC MinasCoordenação de Aperfeiçoamento de Pessoal de Nível Superior Finance Code 001
6 · The paper itself

Abstract

purposeThe aim of this study was to compare the dental effects, impact on quality of life, and pain perception of adolescents wearing Mini Hyrax and Hyrax expanders in rapid palatal expansion.

methodsThirty-four adolescents aged 11 to 16 years, with maxillary transverse deficiency (unilateral or bilateral posterior crossbite), were randomly allocated into two groups, Mini Hyrax group and Hyrax group (1:1 ratio). Dental effects were evaluated by digitally superimposed pretreatment and postretention three-dimensional intraoral scans on the palatal rugaes using the software 3DSlicer. Impact on quality of life was assessed with the OHIP-14 questionnaire applied in the pretreatment, posttreatment and postretention. Visual analog scale was applied 24, 48, and 72 h and 7 days after the first activation of the expander.

resultsThirty of the 34 adolescents recruited completed the study. There were no statistically significant differences in dentoalveolar effects between groups. OHIP-14 scores across time among Mini Hyrax wearers were similar to those of the Hyrax wearers. The inter-group comparisons showed no difference between groups with respect to the OHIP-14 scores in posttreatment and postretention (p > 0.05). There were no differences in pain perception between groups. Considering intra-group comparison, the reduction in pain perception among adolescents in the Mini Hyrax group was gradual. Among adolescents in the Hyrax group, a statistically significant reduction between 48 and 72 h was observed.

conclusionThere were no significant differences in dental effects, impact on quality of life and pain perception between adolescents wearing Mini Hyrax and Hyrax expanders in rapid palatal expansion.

Indexed as

MalocclusionPalatal Expansion TechniqueAdolescentHumansMaxillaQuality of LifeAdolescentPalatal expansion techniquePosterior crossbiteQuality of lifeRandomized clinical trial

Identifiers

PMID34467450
PMCPMC8408292
OpenAlexW3198379429

What OpenQuestion holds

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LicenceCC BY
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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.