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Title: Realistic Facial Three-Dimensional Reconstruction from CT Images and 2D Photographic Images for Surgical-Orthognathic Planning
Authors: Monteiro, Miguel
Vale, Francisco 
Ferreira, Nuno C. 
Marques, Filipa 
Ribeiro, Madalena Prata 
Santos, Mariana 
Oliveira, Catarina 
McEvoy, Mariana 
Travassos, Raquel 
Nunes, Catarina 
Paula, Anabela Baptista 
Francisco, Inês 
Caramelo, Francisco 
Keywords: orthodontics; orthognathic surgery; imaging; three-dimensional; virtual planning
Issue Date: 2023
Publisher: MDPI
Serial title, monograph or event: Applied Sciences (Switzerland)
Volume: 13
Issue: 2
Abstract: Orthognathic surgery is a procedure used to correct intermaxillary discrepancies, thus promoting significant improvements in chewing and breathing. During the surgical planning stage, orthodontists often use two-dimensional imaging techniques. The assessment is based on CBCT images and dental cast models to overcome these limitations; however, the evaluation of soft tissues remains complex. The aim of the present study was to develop a co-registration method of CBCT and photo images that would result in realistic facial image reconstruction. CBCT images were three-dimensionally rendered, and the soft tissues were subsequently segmented resulting in the cranial external surface. A co-registration between the obtained surface and a frontal photo of the subject was then carried out. From this mapping, a photorealistic model capable of replicating the features of the face was generated. To assess the quality of this procedure, seven orthodontists were asked to fill in a survey on the models obtained. The survey results showed that orthodontists consider the three-dimensional model obtained to be realistic and of high quality. This process can automatically obtain a three-dimensional model from CBCT images, which in turn may enhance the predictability of surgical-orthognathic planning.
ISSN: 2076-3417
DOI: 10.3390/app13021226
Rights: openAccess
Appears in Collections:I&D CIBB - Artigos em Revistas Internacionais
I&D ICBR - Artigos em Revistas Internacionais
FMUC Medicina - Artigos em Revistas Internacionais

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