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Applied Sciences
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3D Medical Imaging Diagnosis for Oral and Maxillofacial Applications
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3D Medical Imaging Diagnosis for Oral and Maxillofacial Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Biosciences and Bioengineering".

Deadline for manuscript submissions: closed (20 April 2022) | Viewed by 7027

Special Issue Editors

Dr. Lun-Jou Lo

E-Mail Website
Guest Editor
Department of Plastic and Reconstructive Surgery, Craniofacial Research Center, Chang Gung University, Taoyuan City 333, Taiwan
Interests: cleft lip and palate; craniofacial deformity; orthognathic surgery; facial cosmetic surgery
Dr. Pang-Yun Chou

E-Mail Website
Guest Editor
Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University and Medical College, Taoyuan 333, Taiwan
Interests: 3D printing; CAD/CAM; cleft lip/palate; orthognathic surgery
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce a new Special Issue that is open to receiving potential manuscripts in the journal Applied Sciences, with the theme “3D Medical Imaging Diagnosis for Oral and Maxillofacial Applications”.

The application of 3D medical imaging has become a popular and advanced technique, currently used to assist in diagnosing oral diseases and in maxillofacial surgery, such as in the field of head and neck reconstruction, congenital craniofacial anomaly, traumatic deformity, orthognathic surgery, and so on. By using 3D technology in imaging modality with virtual surgical planning, one can reduce the operation time, avoid post-operative complications, and improve surgical accuracy and outcome, as well as achieve the patient’s satisfaction. Furthermore, 3D printing and model fabrication can be applied to patient consultations or the production of patient-specific implants.

The scope of the Special Issue is to pursue more information regarding precision medicine with the application of 3D imaging in oral and maxillofacial surgery. We look forward to receiving your studies reporting the invaluable experiences of 3D technology applications for this Special Issue. With your contributions, we can create the innovative, revolutionary future together.

Dr. Lun-Jou Lo
Dr. Pang-Yun Chou
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • virtual surgical planning
  • 3D imaging
  • 3D printing
  • patient-specific implants
  • oral maxillofacial surgery

Published Papers (3 papers)

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Research

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15 pages, 10461 KiB  
Article
Secondary Mandible Reconstruction with Computer-Assisted-Surgical Simulation and Patient-Specific Pre-Bent Plates: The Algorithm of Virtual Planning and Limitations Revisited
by Kishor Bhandari, Chih-Hung Lin and Han-Tsung Liao
Appl. Sci. 2022, 12(9), 4672; https://doi.org/10.3390/app12094672 - 6 May 2022
Cited by 1 | Viewed by 1716
Abstract
Despite the known advantages of virtual surgical planning and three-dimensional (3D) printing, translation of virtual planning to actual operation is a challenge, especially in secondary mandibular reconstruction. Patients who underwent secondary microvascular mandibular reconstruction were retrospectively reviewed and categorized into three categories as [...] Read more.
Despite the known advantages of virtual surgical planning and three-dimensional (3D) printing, translation of virtual planning to actual operation is a challenge, especially in secondary mandibular reconstruction. Patients who underwent secondary microvascular mandibular reconstruction were retrospectively reviewed and categorized into three categories as follows: (i) defect not crossing the midline (category I); (ii) defects crossing the midline with availability of previous imaging data (category II) and; (iii) defects crossing the midline with unavailability of previous imaging data (category III). The resulting 3D printed models were used as an effective guide for plate bending during secondary reconstruction surgery. Accuracy of the reconstruction was evaluated by superimposing post-operative images over virtual plan. Out of eleven patients, five were category I, three were category II, and three were category III. The mean linear discrepancy between the planned and post-operative position was measured. A Mann-Whitney U test was conducted to compare mean discrepancy among the groups showed no significant difference between group I and group II (p > 0.05) whereas comparison of groups I and II with group III showed a significant difference (p < 0.01). The proposed algorithm for the generation of defect template for manual plate bending during secondary reconstruction of mandibular defects is valid with acceptable accuracy in various defect configurations. Full article
(This article belongs to the Special Issue 3D Medical Imaging Diagnosis for Oral and Maxillofacial Applications)
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14 pages, 1816 KiB  
Article
One-Jaw versus Two-Jaw Orthognathic Surgery for Patients with Cleft: A Comparative Study Using 3D Imaging Virtual Surgical Planning
by Yu-Hung Tsai, Betty C. J. Pai, Hsiu-Hsia Lin, Cheng-Ting Ho and Lun-Jou Lo
Appl. Sci. 2022, 12(9), 4461; https://doi.org/10.3390/app12094461 - 28 Apr 2022
Viewed by 3282
Abstract
Whether a one-jaw or two-jaw design is used in orthognathic surgery for patients with cleft remains varied and controversial. This study aimed to compare the two approaches using 3-dimensional imaging surgical simulation. This study was conducted on 41 consecutive patients with complete unilateral [...] Read more.
Whether a one-jaw or two-jaw design is used in orthognathic surgery for patients with cleft remains varied and controversial. This study aimed to compare the two approaches using 3-dimensional imaging surgical simulation. This study was conducted on 41 consecutive patients with complete unilateral cleft lip and palate treated in the craniofacial center. All patients had original two-jaw virtual planning and orthognathic surgery. Simulation of one-jaw LeFort I surgery was performed using the same final dental occlusion on 3-dimensional images. Cephalometric data and asymmetry index were collected and compared among the designs. Average advancement of the maxilla was 7.46 mm in one-jaw and 4.80 mm in two-jaw design. SNA, SNB, and A-N perpendicular were significantly greater and close to normative data in the one-jaw design. ANB angles were similar in both designs. The anterior and posterior occlusal plane cants, the deviation of midline landmarks, and the asymmetry index were more improved in the two-jaw approach. It is concluded that the two-jaw cleft orthognathic surgery could significantly improve facial midline and symmetry compared with the one-jaw approach. However, the two-jaw surgery with mandibular setback produced less protrusive facial contour although a harmonious relationship between the maxilla and mandible was achieved. Full article
(This article belongs to the Special Issue 3D Medical Imaging Diagnosis for Oral and Maxillofacial Applications)
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4 pages, 416 KiB  
Tutorial
How to Create and 3D Print a Model of the Skull and Orbit for Craniomaxillofacial Surgeons
by Léonard Bergeron, Jordan Gornitsky and Michelle Bonapace-Potvin
Appl. Sci. 2022, 12(12), 6153; https://doi.org/10.3390/app12126153 - 17 Jun 2022
Viewed by 1296
Abstract
Three-dimensional (3D) anatomical models are used in many ways in cranio-maxillo-facial (CMF) surgery, including being used to press-fit plates, mold splints, and for student teaching. Their use has many advantages, including the possibility of lowering operative time and allowing for more precise reconstructions [...] Read more.
Three-dimensional (3D) anatomical models are used in many ways in cranio-maxillo-facial (CMF) surgery, including being used to press-fit plates, mold splints, and for student teaching. Their use has many advantages, including the possibility of lowering operative time and allowing for more precise reconstructions with personalized plates, meshes, and splints. This can now be done in-house to speed up model availability for trauma surgery as well. Three-dimensional printers and software are quickly evolving—printers now are easily accessible, and the models are inexpensive to print. However, for a surgeon with no IT training, 3D printing even a simple anatomic model may be a challenge. The purpose of this article is to offer simple, step-by-step video tutorials demonstrating the process of extracting a CMF model from a patient CT scan, doing basic manipulation to the model, and then printing it in-house with a prosumer grade 3D printer. It is our hope that this user-friendly article will allow more surgeons and scientists to use 3D printing and its advantages. Full article
(This article belongs to the Special Issue 3D Medical Imaging Diagnosis for Oral and Maxillofacial Applications)
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