Evidence map›Paper›PMID 35291489›Full record

ArticlePeerJ2022

Effect of magnification factor by Galilean loupes on working posture of dental students in simulated clinical procedures: associations between direct and observational measurements.

Júlia Margato Pazos, Simone Cecilio Hallak Regalo, Paulo de Vasconcelos, Juliana Alvares Duarte Bonini Campos, Patricia Petromilli Nordi Sasso Garcia

Open access · goldAbstract read
In one paragraph

Article in PeerJ, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
7.2field-weighted citation impact, top 3% 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

12 citing papers in PubMed, 23 citations in OpenAlex.

  1. Implementing Deflection Loupes in Endodontic Training of General Dentistry Residents: Effects on Treatment Quality, Procedure Time and Ergonomics.European journal of dental education : official journal of the Association for Dental Education in Europe · 2026
    Trial
  2. Trial
  3. Training Program for the Use of Magnification Loupes in Dentistry.European journal of dental education : official journal of the Association for Dental Education in Europe · 2026
    Article
  4. Effects of Galilean Loupes on Dental Students' Posture and Cavity Preparation Quality.European journal of dental education : official journal of the Association for Dental Education in Europe · 2026
    Article
  5. Article
  6. Observational
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Observational
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

5 authors at 2 institutions in 1 country.

Júlia Margato PazosDepartment of Social Dentistry, School of Dentistry of Araraquara, São Paulo State University (Unesp), Araraquara, São Paulo, Brazil.ORCID 0000-0001-8832-8796
Simone Cecilio Hallak RegaloDepartment of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil.
Paulo de VasconcelosDepartment of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil.
Juliana Alvares Duarte Bonini CamposDepartment of Food and Nutrition, School of Pharmaceutical Sciences, São Paulo State Univeristy (Unesp), Araraquara, São Paulo, Brazil.
Patricia Petromilli Nordi Sasso GarciaDepartment of Social Dentistry, School of Dentistry of Araraquara, São Paulo State University (Unesp), Araraquara, São Paulo, Brazil.
Centro Universitário de Araraquara · BRUniversidade de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: To determine the effect of different levels of Galilean loupe magnification on working posture as measured by compliance with ergonomic posture positions, angular deviation from the neutral position of the neck, and muscle activation in the neck and upper back region during simulated clinical conditions. Methods: An experimental laboratory study was performed in which the dependent variables were compliance with ergonomic posture requirements while performing simulated restorative procedures in Restorative Dentistry, angular deviation from the neutral position of the neck, and muscle activation in the neck and upper back. The independent variable was the level of Galilean loupe magnification, which was tested at four levels (naked eye, 2.5× magnification, 3.0× magnification, and 3.5× magnification). The cavity preparations and Class I composite resin restorations were performed on artificial first molars on a mannequin in a dental chair. The Compliance Assessment of Dental Ergonomic Posture Requirements (CADEP) was used for the postural analysis; as was an analysis of the angular deviation from the neutral position of the neck and surface electromyography. Working posture was recorded on video over the course of the procedure. Participants were filmed from three different angles. The Compliance Assessment of Dental Ergonomic Posture Requirements (CADEP) assessed compliance with ergonomic posture requirements. A locally produced posture assessment software analyzed angular deviation. Surface electromyography bilaterally assessed activation of the sternocleidomastoid, descending trapezius and ascending trapezius muscles. Two-factor analysis of variance (ANOVA) and either Tukey's post-hoc test or the Games-Howell post-hoc test were performed (α = 0.05). Results: During the cavity preparations and restorations, the use of Galilean loupes at all magnifications positively influenced working posture as measured by participants' compliance with ergonomic posture positions ( Conclusion: The use of Galilean loupes had a positive effect on dental students' working posture during the restoration procedures performed.

Indexed as

LensesStudents, DentalDentistryEye, ArtificialHumansPostureDentistryErgonomicsGalilean loupeMagnificationOccupational healthVisual acuity

Identifiers

PMID35291489
PMCPMC8918149
OpenAlexW4221011583

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.