Three-Dimensional Computer-Assisted Surgical Planning, Manufacturing, Intraoperative Navigation, and Computed Tomography in Maxillofacial Trauma

The aim of this study was to investigate the usefulness of a three-dimensional (3D) reconstruction of computed tomography (CT) images in determining the anatomy and topographic relationship between various important structures. Using 40 ears from 20 patients with various otological diseases, a 3D reconstruction based on the image data from spiral high-resolution CT was performed by segmentation, volume-rendering and surface-rendering algorithms on a personal computer. The 3D display of the middle and inner ear structures was demonstrated in detail. Computer-assisted measurements, many of which could not be easily measured in vivo, of the reconstructed structures provided accurate anatomic details that improved the surgeon’s understanding of spatial relationships. A 3D reconstruction of temporal bone CT might be useful for education and increasing understanding of the anatomical structures of the temporal bone. However, it will be necessary to confirm the correlation between the 3D reconstructed images and histological sections through a validation study.

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Cone Beam Computed Tomography vs Multislice Computed Tomography in Computer-Aided Design/Computer-Assisted Manufacture Guided Implant Surgery Based on Three-Dimensional Optical Scanning and Stereolithographic Guides: Does Image Modality Matter?

The International Journal of Oral & Maxillofacial Implants ◽

10.11607/jomi.4222 ◽

2016 ◽

pp. 527-533 ◽

Cited By ~ 7

Author(s):

Gerlig Widmann ◽

Bastian Fischer ◽

Johannes Berggren ◽

Albina Dennhardt ◽

Peter Schullian ◽

...

Keyword(s):

Computed Tomography ◽

Computer Aided Design ◽

Multislice Computed Tomography ◽

Three Dimensional ◽

Cone Beam ◽

Computer Assisted ◽

Optical Scanning ◽

Computer Aided ◽

Aided Design ◽

Image Modality

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Correction of a Posttraumatic Orbital Deformity Using Three-Dimensional Modeling, Virtual Surgical Planning with Computer-Assisted Design, and Three-Dimensional Printing of Custom Implants

Craniomaxillofacial Trauma & Reconstruction ◽

10.1055/s-0037-1601432 ◽

2018 ◽

Vol 11 (1) ◽

pp. 078-082 ◽

Cited By ~ 7

Author(s):

Kristopher M. Day ◽

Paul M. Phillips ◽

Larry A. Sargent

Keyword(s):

Computer Technology ◽

Surgical Planning ◽

Bone Fractures ◽

Three Dimensional ◽

Lower Eyelid ◽

Frontal Bone ◽

Facial Trauma ◽

Computer Assisted ◽

Virtual Surgical Planning ◽

Three Dimensional Modeling

We describe a case of complex, posttraumatic skull and orbital deformities that were evaluated and treated with advanced computer technology, including virtual surgical planning, three-dimensional (3D) modeling, and printed patient custom implants (PCI) fabricated by 3D printing. A 50-year-old man presented to our craniofacial referral center 1 year after failed reduction of complex left orbital, zygomatic, and frontal bone fractures due to a motorcycle collision. The patient's chief complaint was debilitating diplopia in all fields of gaze. On examination, he had left enophthalmos, left canthal displacement, lower eyelid ectropion, vertical orbital dystopia, and a laterally and inferiorly displaced, comminuted zygoma with orbital rim and frontal bone defects. The normal orbit was mirrored to precisely guide repositioning of the globe, orbital reconstruction, and cranioplasty. Preinjury appearance with normal globe position was restored with complete resolution of diplopia. Modern 3D technology allows the surgeon to better analyze complex orbital deformities and precisely plan surgical correction with the option of printing a PCI. These techniques were successfully applied to resolve a case of debilitating diplopia and aesthetic deficits after facial trauma. Further application of advanced 3D computer technology can potentially improve the results of severe orbital and craniofacial trauma reconstruction.

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Tomografia computadorizada no planejamento cirúrgico em Periodontia: revisão de literatura

Revista Brasileira de Odontologia ◽

10.18363/rbo.v73n4.p.305 ◽

2016 ◽

Vol 73 (4) ◽

pp. 305

Author(s):

Alessandra Areas e Souza ◽

Ingrid De Assis Mota Costa ◽

Paula Mozer Vidal

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Surgical Planning ◽

Three Dimensional ◽

Conventional Radiography ◽

Bone Defects ◽

Response To Treatment ◽

Cone Beam ◽

Pubmed Database ◽

Periodontal Biotype

Objective: The aim of this study was to conduct a literature review on the use of cone-beam computed tomography in periodontics and determine the extent and severity of periodontal lesions so as to encourage the development of a new concept for diagnosis and surgical planning in periodontics. Material and methods: A literature search was conducted in PubMed database using the following keywords: computed tomography, diagnosis periodontics, bone defects, furcation lesions, and periodontal biotype. A total of 33 articles were found. Results: A review of the articles suggested benefits in using this technology in periodontal surgical planning, for treatment of furcation lesions, bone defects, and determination of periodontal biotype. Conclusion: Cone-beam computed tomography three-dimensional images is superior to conventional radiography. It also minimizes patient exposure to ionizing radiation, optimizes surgical planning, and decreases operative time, leading to a better response to treatment. This technology is very useful in clinical practice, but is not used widely in periodontics. We believe that the use of this technology should be promoted among professionals.

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