Accuracy of capturing oncology facial defects with multimodal image fusion versus laser scanning

Jablonski, Rachael Y.; Osnes, Cecilie; Khambay, Balvinder; Nattress, Brian; Keeling, Andrew

doi:10.1016/j.prosdent.2018.10.017

Cited by 9 publications

(4 citation statements)

References 16 publications

(29 reference statements)

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“…The capture time of 3D facial imaging system is 50 ms and its accuracy is within 500 μm [ 31 ]. Although the mean global deviation between the multimodal image fusion model (220 ± 50 μm) and the laser-scanned model (170 ± 70 μm) showed the statistically significant difference, the mean difference of 500 μm is unlikely to have a clinical impact [ 32 ].…”

Section: Discussionmentioning

confidence: 99%

Morphometry and displacement analysis of the upper lips following maxillary full-arch implant-supported fixed prostheses: a 3D morphometric study

Hao

Luo

et al. 2021

BMC Oral Health

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Background With the emergence of three-dimensional (3D) integration technology, analysis of soft tissue displacement and morphological changes after maxillary full-arch implant-supported fixed prostheses can be performed. The aim of this study was to verify the feasibility of the 3D integration method for constructing the relative position of the prostheses and facial soft tissue, evaluate the displacement and morphological variation of the upper lips after maxillary full-arch implant-supported fixed prostheses. Methods Twenty-five maxillary edentulous patients were recruited in this study. At the time of final prosthesis delivery, the 3D prostheses data and three 3D facial profiles were integrated. After method validation, the 3D position changes of seven soft tissue landmarks were used to reflect the 25 upper lips. The variation of four morphological distances were analyzed to reflect the morphological alteration of the upper lips. Two pairs of dentofacial landmarks were used to analyze the sagittal relative position of the prostheses and soft tissue. The included patients were also grouped to determine the impact of sex, upper lip thickness, and length on lip support changes. Results The average distance of the two matched relative reliable forehead regions was only 0.32 mm. The sagittal shifts of labrale superius (LS), stomion (STO), crista philtri left (CPHL) and crista philtri right (CPHR) were 3.44 ± 1.39 mm, 2.52 ± 1.38 mm, 3.04 ± 1.18 mm, and 3.12 ± 1.21 mm, respectively. With the exception of the decrease in the length of subnasale (SN)-LS, the length of cheilion right (CHR)-cheilion left (CHL), CPHR-CPHL, and LS-STO significantly increased. The two pairs of dentofacial landmarks had strong positive movement correlations along the sagittal direction. Patients with thinner and longer lips showed more lip support than those with thicker and shorter lips by a clinically insignificant amount. Conclusions The integration method of 3D facial and dental data showed high repeatability in constructing the dentofacial relative position. The linear equations reflecting dentofacial relative position could aid clinicians in evaluating the restoration effect and estimate the upper lip variation.

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Section: Discussionmentioning

confidence: 99%

Morphometry and displacement analysis of the upper lips following maxillary full-arch implant-supported fixed prostheses: a 3D morphometric study

Hao

Luo

et al. 2021

BMC Oral Health

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“…A preliminary extraoral irreversible hydrocolloid impression was made from the patient's face. A custom impression tray was fabricated to get a detailed impression of the intaglio surface with a low‐viscosity light‐body polyvinyl siloxane silicone impression material (Elite HD Plus, Zhermack, Italy) applying minimal pressure to overcome the inaccuracies 1,10 …”

Section: Clinical Reportmentioning

confidence: 99%

“…A custom impression tray was fabricated to get a detailed impression of the intaglio surface with a lowviscosity light-body polyvinyl siloxane silicone impression material (Elite HD Plus, Zhermack, Italy) applying minimal pressure to overcome the inaccuracies. 1,10 A wax moulage replacing the missing outer facial contours was made and tried on the patient's face. A substructure was designed considering wax moulage as a reference so that it would support the silicone MFP and provide the nasal airway (Figure 4a,b).…”

Section: Prosthetic Proceduresmentioning

confidence: 99%

Improvement of speech by facial prosthesis in a midfacial defect with a gunshot injury: A case report

Mersin

Kılıçarslan

Tetik

2023

Journal of Prosthodontics

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Gunshot wounds in the maxillofacial region may cause serious defects that result in functional and esthetic disabilities. A 14‐year‐old male patient was referred to the prosthodontics clinic for provisional prosthetic restoration 5 months after an injury involving the midline midfacial region. An interim extraoral silicone maxillofacial prosthesis (MFP), also known as an epithesis, replacing the nose and upper lip, was fabricated to enhance appearance and speech intelligibility. The effect of the prosthesis insertion on speech outcome was assessed over 6 months. Blood pulse oxygen saturation levels and heart rate were monitored to assess ventilation following the prosthesis insertion. Results of the Assessment of Articulation Subtest revealed the patient produced the target speech sounds of 31 more words correctly at 6 months follow‐up. Bilabial, labiodental, and postalveolar speech sounds in the phonetic inventory improved. Fabrication of an extraoral silicone MFP, modifying substructure design, and prosthesis usage over time contributed to the significant enhancement of speech intelligibility and did not significantly change the blood pulse oxygen saturation levels and heart rate. It led to an improvement in overall aesthetic outcomes and was a useful tool for the patient's social integration.

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“…CT scans have a unique use for extraoral surface data acquisition only when osseointegrated implants are being planned. It can help transport the head's position and allow the designer to mirror the healthy anatomy with just one scan (23,26,27,(36)(37)(38)(39)(40)(41).…”

Section: Molding Processes Have Been Utilizing Different 3d Image Acq...mentioning

confidence: 99%

Present and future of extraoral maxillofacial prosthodontics: Cancer rehabilitation

Salazar-Gamarra

Binasco²,

Seelaus³

et al. 2022

Front. Oral. Health

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Historically, facial prosthetics have successfully rehabilitated individuals with acquired or congenital anatomical deficiencies of the face. This history includes extensive efforts in research and development to explore best practices in materials, methods, and artisanal techniques. Presently, extraoral maxillofacial rehabilitation is managed by a multiprofessional team that has evolved with a broadened scope of knowledge, skills, and responsibility. This includes the mandatory integration of different professional specialists to cover the bio-psycho-social needs of the patient, systemic health and pathology surveillance, and advanced restorative techniques, which may include 3D technologies. In addition, recent digital workflows allow us to optimize this multidisciplinary integration and reduce the active time of both patients and clinicians, as well as improve the cost-efficiency of the care system, promoting its access to both patients and health systems. This paper discusses factors that affect extraoral maxillofacial rehabilitation's present and future opportunities from teamwork consolidation, techniques utilizing technology, and health systems opportunities.

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Accuracy of capturing oncology facial defects with multimodal image fusion versus laser scanning

Cited by 9 publications

References 16 publications

Morphometry and displacement analysis of the upper lips following maxillary full-arch implant-supported fixed prostheses: a 3D morphometric study

Morphometry and displacement analysis of the upper lips following maxillary full-arch implant-supported fixed prostheses: a 3D morphometric study

Improvement of speech by facial prosthesis in a midfacial defect with a gunshot injury: A case report

Present and future of extraoral maxillofacial prosthodontics: Cancer rehabilitation

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