Utilizing a low-cost desktop 3D printer to develop a “one-stop 3D printing lab” for oral and maxillofacial surgery and dentistry fields

Kamio, Takashi; Hayashi, Kamichika; Onda, Takeshi; Takaki, Takashi; Shibahara, Takahiko; Yakushiji, Takashi; Shibui, Takeo; Katô, Hiroshi

doi:10.1186/s41205-018-0028-5

Cited by 61 publications

(46 citation statements)

References 20 publications

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“…In the case of AR, its interaction with virtual 3D models and the real environment benefits physicians in regards to education and training 1,2,3 , communication and interactions with other physicians 4 , and guidance during clinical interventions 5,6,7,8,9,10 . Likewise, 3DP has become a powerful solution for physicians when developing patient-specific customizable tools 11,12,13 or creating 3D models of a patient's anatomy, which can help improve preoperative planning and clinical interventions 14,15 .…”

Section: Introductionmentioning

confidence: 99%

Combining Augmented Reality and 3D Printing to Display Patient Models on a Smartphone

Moreta-Martínez

García-Mato

García-Sevilla

et al. 2020

JoVE

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Augmented reality (AR) has great potential in education, training, and surgical guidance in the medical field. Its combination with threedimensional (3D) printing (3DP) opens new possibilities in clinical applications. Although these technologies have grown exponentially in recent years, their adoption by physicians is still limited, since they require extensive knowledge of engineering and software development. Therefore, the purpose of this protocol is to describe a step-by-step methodology enabling inexperienced users to create a smartphone app, which combines AR and 3DP for the visualization of anatomical 3D models of patients with a 3D-printed reference marker. The protocol describes how to create 3D virtual models of a patient's anatomy derived from 3D medical images. It then explains how to perform positioning of the 3D models with respect to marker references. Also provided are instructions for how to 3D print the required tools and models. Finally, steps to deploy the app are provided. The protocol is based on free and multi-platform software and can be applied to any medical imaging modality or patient. An alternative approach is described to provide automatic registration between a 3D-printed model created from a patient's anatomy and the projected holograms. As an example, a clinical case of a patient suffering from distal leg sarcoma is provided to illustrate the methodology. It is expected that this protocol will accelerate the adoption of AR and 3DP technologies by medical professionals. Video LinkThe video component of this article can be found at https://www.jove.com/video/60618/ 2 . These methods have been considered somewhat limited when an accurate registration is required 19 . To overcome these limitations, this work provides tools to perform accurate and simple patient-to-image registration in AR procedures by combining AR technology and 3DP.The protocol is generic and can be applied to any medical imaging modality or patient. As an example, a real clinical case of a patient suffering from distal leg sarcoma is provided to illustrate the methodology. The first step describes how to easily segment the affected anatomy from Journal of Visualized Experiments www.jove.com Copyright © 2020 Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License January 2020 | 155 | e60618 | Page 2 of 10 computed tomography (CT) medical images to generate 3D virtual models. Afterward, positioning of the 3D models is performed, then the required tools and models are 3D-printed. Finally, the desired AR app is deployed. This app allows for the visualization of patient 3D models overlaid on a smartphone camera in real-time.3. Click on the Show 3D button to view a 3D representation of the segmentation.3. Export the segmentation in a 3D model file format by going to the Segmentations module in 3D Slicer.1. Go to Export/import models and labelmaps. Select Export in the operation section and Models in the output type section. Click Export to finish and create the 3D model from the segmented area. 2. Selec...

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Section: Introductionmentioning

confidence: 99%

Combining Augmented Reality and 3D Printing to Display Patient Models on a Smartphone

Moreta-Martínez

García-Mato

García-Sevilla

et al. 2020

JoVE

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“…Three-dimensional (3D) models can be checked both visually and tactually, making it easier to grasp positional relationships within the structure represented than with a 3D display on a computer monitor. In the oral and maxillofacial field, such 3D models are used Case Report doi:10.2209/tdcpublication.2018-0058 for a wide range of applications, such as patient explanations, preoperative treatment planning, surgical simulation, and medical education 6,8,10,17,18,25,30) . Their application in the dental field is also widening.…”

Section: Introductionmentioning

confidence: 99%

“…Their application in the dental field is also widening. An earlier study by this team described how 3D models could be fabricated inexpensively and quickly using data obtained by means of multi detector-row computed tomography and/or limited conebeam CT (CBCT) 10) . The models fabricated using this method are already being used for various purposes in a clinical setting, and this team has previously described their application in diagnosis, endodontic management, and surgical endodontic treatment 11,12) .…”

Section: Introductionmentioning

confidence: 99%

Autotransplantation of Impacted Third Molar Using 3D Printing Technology: A Case Report

Kamio¹,

Katô

2019

Bull. Tokyo Dent. Coll.

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Here, we describe a case of autotransplantation of a mandibular horizontally impacted third molar using a 3-dimensional (3D) model based on limited cone-beam computed tomography (CBCT) images for diagnosis, 3D morphological evaluation, preoperative treatment planning, and surgical simulation. A 27-year-old woman visited this hospital for conservative treatment of the mandibular left second molar. Intraoral radiography and CBCT images revealed a C-shaped root canal in the mesial root, and compressive resorption of the distal root due to impingement of the crown of the horizontally impacted lower left third molar. Extraction was therefore planned. Multiple tooth-jaw bone 3D models for preoperative diagnosis were fabricated using a low-cost desktop 3D printer and surgical simulation of autotransplantation performed. The autotransplantation was then performed accordingly. Cone-beam computed tomography images and 3D models were extremely useful in obtaining a stereoscopic understanding of the morphology of the transplanted tooth and its surrounding anatomical structures. At the one-year postoperative recall, the patient was able chew with the transplanted tooth without pain, and no significant abnormalities were detected on intraoral radiographs, indicating a successful postoperative clinical course. Our experience of using 3D models fabricated based on CBCT images using a desktop 3D printer for preoperative diagnosis and surgical simulation suggests that this technique is useful in tooth autotransplantation.

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“…We are utilizing 3D models in the oral and maxillofacial surgery, that operate osseous structures, such as tooth extraction, jaw cyst, jaw bone tumor, jaw deformity, etc. [8]. As described in the previous report [9], even in the oral and maxillofacial fields, surgeons use their anatomical knowledge and experiences to understand anatomical structures on preoperative images or on the patient intraoperatively.…”

mentioning

confidence: 96%

DICOM segmentation and STL creation for 3D Printing: A Process and Software Package Comparison for Osseous Anatomy

Kamio

Suzuki²,

ASAUMI³

et al. 2020

Preprint

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Background: Extracting and three-dimensional (3D) printing an organ in a region of interest in DICOM images typically calls for segmentation in support of 3D printing as a first step. The DICOM images are not exported to STL data immediately, segmentation masks are exported to STL models. After primary and secondary processing, including noise removal and hole correction, the STL data can be 3D printed. The quality of the 3D model is directly related to the quality of the STL data. This study focuses and reports on DICOM to STL segmentation performance for nine software packages.Methods: Multi-detector row CT scanning was performed on a dry human mandible with two 10-mmdiameter bearing balls as a phantom. The DICOM images file was then segmented and exported to a STL file using nine different commercial/open-source software packages. Once the STL models were created, the data (file) properties and the size and volume of each were measured and differences across the software packages were noted. Additionally, to evaluate differences between the shapes of the STL models by software package, each pair of STL models was superimposed, with observed differences between their shapes characterized as shape error.Results: The data (file) size of the STL file and the number of triangles that constitute each STL model were different across all software packages, there was no statistically significant difference were found across software packages. The created ball STL model expanded in the X-, Y-, and Z-axis directions, with the length in the Z-axis direction (body axis direction) being slightly longer than other directions. There were no significant differences in shape error across software packages for the mandible STL model. Conclusions:The different characteristics of each software package were noticeable, such as different effects in the thin cortical bone area, likely due to the partial volume effect, which may reflect differences in image binarization algorithms. Although the shape of the STL model differs slightly depending on the software, our results indicate that shape error in 3D printing for clinical use in the operation of osseous structures. BackgroundDigital Imaging and COmmunications in Medicine (DICOM) is the leading standard around the world Author informationAffiliations

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Utilizing a low-cost desktop 3D printer to develop a “one-stop 3D printing lab” for oral and maxillofacial surgery and dentistry fields

Cited by 61 publications

References 20 publications

Combining Augmented Reality and 3D Printing to Display Patient Models on a Smartphone

Combining Augmented Reality and 3D Printing to Display Patient Models on a Smartphone

Autotransplantation of Impacted Third Molar Using 3D Printing Technology: A Case Report

DICOM segmentation and STL creation for 3D Printing: A Process and Software Package Comparison for Osseous Anatomy

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