Evidence map›Paper›PMID 33161500›Full record

ArticleOral and maxillofacial surgery2021

Accuracy of three-dimensional virtual simulation of the soft tissues of the face in OrtogOnBlender for correction of class II dentofacial deformities: an uncontrolled experimental case-series study.

Hugo Santos Cunha, Cícero André da Costa Moraes, Rodrigo de Faria Valle Dornelles, Everton Luis Santos da Rosa

Abstract read
In one paragraph

Article in Oral and maxillofacial surgery, 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
–field-weighted citation impact
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.

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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

4 authors.

Hugo Santos CunhaOral and Maxillofacial Surgery Unit, Hospital de Base do Distrito Federal, Brasília, DF, Brazil.
Cícero André da Costa MoraesOrtogonline Treinamento em Desenvolvimento Profissional e Consultoria Ltda, Sinop, MT, Brazil.
Rodrigo de Faria Valle DornellesHospital Beneficência Portuguesa de São Paulo, São Paulo, SP, Brazil.
Everton Luis Santos da RosaOral and Maxillofacial Surgery Unit, Instituto de Gestão Estratégica de Saúde do Distrito Federal (IGESDF), Hospital de Base, SMHS - Área Especial, Q. 101 - Asa Sul, Brasília, DF, 70330-150, Brazil. zazai547@gmail.com.ORCID http://orcid.org/0000-0002-4175-3282

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo assess whether virtual simulations of the projection of the soft tissues of the face after class II bimaxillary orthognathic surgery, generated from 3D reconstruction of preoperative computed tomography (CT) scans, differed significantly from the actual soft tissue profile obtained in the late postoperative period (beyond 6 months). Secondarily, to validate the accuracy of a free, open-source software suite for virtual soft tissue planning in orthognathic surgery.

methodsHelical CT scans were obtained pre- and postoperatively from 16 patients with Angle class II malocclusion who underwent bimaxillary orthognathic surgery. A comparative study between soft tissue meshes constructed for surgical simulation (M1) and the actual meshes obtained from postoperative scans (M2) was then performed. To establish the accuracy of 3D facial soft tissue simulation in a free and open-source software suite (OrtogOnBlender-OOB), 17 predetermined anatomic landmarks were measured in M1 and M2 scans after alignment of cranial structures.

resultsThe mean error between preoperative simulations and actual postoperative findings was < 2 mm for all anthropometric landmarks. The overall average error for the facial soft tissues was 1.07 mm.

conclusionComparison between preoperative simulation (M1) and actual postoperative findings (M2) showed clinically relevant ability of the method to reproduce actual surgical movement reliably (< 2-mm error). OOB is capable of accurate soft tissue planning for orthognathic surgery, but mesh deformation methods still require improvement.

trial registrationRBR-88jff9. Retrospectively registered at Brazilian Registry of Clinical trials-ReBec ( http://www.ensaiosclinicos.gov.br ) May 06, 2020.

Indexed as

Dentofacial DeformitiesOrthognathic SurgeryOrthognathic Surgical ProceduresSurgery, Computer-AssistedCephalometryFaceHumansImaging, Three-Dimensional3D imaging3D simulationComputer simulationOrthognathic surgerySoft tissue simulation

Identifiers

PMID33161500
PMCPMC7648899

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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.