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Lin Z, Lei C, Yang L. Modern Image-Guided Surgery: A Narrative Review of Medical Image Processing and Visualization. SENSORS (BASEL, SWITZERLAND) 2023; 23:9872. [PMID: 38139718 PMCID: PMC10748263 DOI: 10.3390/s23249872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/15/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023]
Abstract
Medical image analysis forms the basis of image-guided surgery (IGS) and many of its fundamental tasks. Driven by the growing number of medical imaging modalities, the research community of medical imaging has developed methods and achieved functionality breakthroughs. However, with the overwhelming pool of information in the literature, it has become increasingly challenging for researchers to extract context-relevant information for specific applications, especially when many widely used methods exist in a variety of versions optimized for their respective application domains. By being further equipped with sophisticated three-dimensional (3D) medical image visualization and digital reality technology, medical experts could enhance their performance capabilities in IGS by multiple folds. The goal of this narrative review is to organize the key components of IGS in the aspects of medical image processing and visualization with a new perspective and insights. The literature search was conducted using mainstream academic search engines with a combination of keywords relevant to the field up until mid-2022. This survey systemically summarizes the basic, mainstream, and state-of-the-art medical image processing methods as well as how visualization technology like augmented/mixed/virtual reality (AR/MR/VR) are enhancing performance in IGS. Further, we hope that this survey will shed some light on the future of IGS in the face of challenges and opportunities for the research directions of medical image processing and visualization.
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Affiliation(s)
- Zhefan Lin
- School of Mechanical Engineering, Zhejiang University, Hangzhou 310030, China;
- ZJU-UIUC Institute, International Campus, Zhejiang University, Haining 314400, China;
| | - Chen Lei
- ZJU-UIUC Institute, International Campus, Zhejiang University, Haining 314400, China;
| | - Liangjing Yang
- School of Mechanical Engineering, Zhejiang University, Hangzhou 310030, China;
- ZJU-UIUC Institute, International Campus, Zhejiang University, Haining 314400, China;
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2
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Cleft and Craniofacial Surgery. J Oral Maxillofac Surg 2023; 81:E120-E146. [PMID: 37833020 DOI: 10.1016/j.joms.2023.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
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3
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Abdul Samat A, Abdul Hamid ZA, Jaafar M, Ong CC, Yahaya BH. Investigation of the In Vitro and In Vivo Biocompatibility of a Three-Dimensional Printed Thermoplastic Polyurethane/Polylactic Acid Blend for the Development of Tracheal Scaffolds. Bioengineering (Basel) 2023; 10:bioengineering10040394. [PMID: 37106581 PMCID: PMC10136332 DOI: 10.3390/bioengineering10040394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/18/2023] [Accepted: 02/02/2023] [Indexed: 04/29/2023] Open
Abstract
Tissue-engineered polymeric implants are preferable because they do not cause a significant inflammatory reaction in the surrounding tissue. Three-dimensional (3D) technology can be used to fabricate a customised scaffold, which is critical for implantation. This study aimed to investigate the biocompatibility of a mixture of thermoplastic polyurethane (TPU) and polylactic acid (PLA) and the effects of their extract in cell cultures and in animal models as potential tracheal replacement materials. The morphology of the 3D-printed scaffolds was investigated using scanning electron microscopy (SEM), while the degradability, pH, and effects of the 3D-printed TPU/PLA scaffolds and their extracts were investigated in cell culture studies. In addition, subcutaneous implantation of 3D-printed scaffold was performed to evaluate the biocompatibility of the scaffold in a rat model at different time points. A histopathological examination was performed to investigate the local inflammatory response and angiogenesis. The in vitro results showed that the composite and its extract were not toxic. Similarly, the pH of the extracts did not inhibit cell proliferation and migration. The analysis of biocompatibility of the scaffolds from the in vivo results suggests that porous TPU/PLA scaffolds may facilitate cell adhesion, migration, and proliferation and promote angiogenesis in host cells. The current results suggest that with 3D printing technology, TPU and PLA could be used as materials to construct scaffolds with suitable properties and provide a solution to the challenges of tracheal transplantation.
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Affiliation(s)
- Asmak Abdul Samat
- Lung Stem Cell and Gene Therapy Group, Department of Biomedical Sciences, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Sains@Bertam, Kepala Batas 13200, Malaysia
- Department of Fundamental Dental and Medical Sciences, Kulliyyah of Dentistry, International Islamic University Malaysia, Kuantan 25200, Malaysia
| | - Zuratul Ain Abdul Hamid
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal 14300, Malaysia
| | - Mariatti Jaafar
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal 14300, Malaysia
| | - Chern Chung Ong
- Fabbxible Technology, 11a Jalan IKS Bukit Tengah, Tmn IKS Bukit Tengah, Bukit Mertajam 14000, Malaysia
| | - Badrul Hisham Yahaya
- Lung Stem Cell and Gene Therapy Group, Department of Biomedical Sciences, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Sains@Bertam, Kepala Batas 13200, Malaysia
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4
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Ghosh S, Sarkar B, Mostafavi E. Nano-based 3D-printed biomaterials for regenerative and translational medicine applications. Nanomedicine (Lond) 2023. [DOI: 10.1016/b978-0-12-818627-5.00010-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023] Open
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5
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Nyirjesy SC, Heller M, von Windheim N, Gingras A, Kang SY, Ozer E, Agrawal A, Old MO, Seim NB, Carrau RL, Rocco JW, VanKoevering KK. The role of computer aided design/computer assisted manufacturing (CAD/CAM) and 3- dimensional printing in head and neck oncologic surgery: A review and future directions. Oral Oncol 2022; 132:105976. [PMID: 35809506 DOI: 10.1016/j.oraloncology.2022.105976] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 06/17/2022] [Indexed: 01/12/2023]
Abstract
Microvascular free flap reconstruction has remained the standard of care in reconstruction of large tissue defects following ablative head and neck oncologic surgery, especially for bony structures. Computer aided design/computer assisted manufacturing (CAD/CAM) and 3-dimensionally (3D) printed models and devices offer novel solutions for reconstruction of bony defects. Conventional free hand techniques have been enhanced using 3D printed anatomic models for reference and pre-bending of titanium reconstructive plates, which has dramatically improved intraoperative and microvascular ischemia times. Improvements led to current state of the art uses which include full virtual planning (VP), 3D printed osteotomy guides, and patient specific reconstructive plates, with advanced options incorporating dental rehabilitation and titanium bone replacements into the primary surgical plan through use of these tools. Limitations such as high costs and delays in device manufacturing may be mitigated with in house software and workflows. Future innovations still in development include printing custom prosthetics, 'bioprinting' of tissue engineered scaffolds, integration of therapeutic implants, and other possibilities as this technology continues to rapidly advance. This review summarizes the literature and serves as a summary guide to the historic, current, advanced, and future possibilities of 3D printing within head and neck oncologic surgery and bony reconstruction. This review serves as a summary guide to the historic, current, advanced, and future roles of CAD/CAM and 3D printing within the field of head and neck oncologic surgery and bony reconstruction.
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Affiliation(s)
- Sarah C Nyirjesy
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - Margaret Heller
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - Natalia von Windheim
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - Amelia Gingras
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - Stephen Y Kang
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - Enver Ozer
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - Amit Agrawal
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - Matthew O Old
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - Nolan B Seim
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - Ricardo L Carrau
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - James W Rocco
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States
| | - Kyle K VanKoevering
- Department of Otolaryngology- Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, 915 Olentangy River Road, Columbus, OH 43210, United States.
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Kaufmann R, Zech CJ, Takes M, Brantner P, Thieringer F, Deutschmann M, Hergan K, Scharinger B, Hecht S, Rezar R, Wernly B, Meissnitzer M. Vascular 3D Printing with a Novel Biological Tissue Mimicking Resin for Patient-Specific Procedure Simulations in Interventional Radiology: a Feasibility Study. J Digit Imaging 2022; 35:9-20. [PMID: 34997376 PMCID: PMC8854516 DOI: 10.1007/s10278-021-00553-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 10/31/2021] [Accepted: 11/22/2021] [Indexed: 12/24/2022] Open
Abstract
Three-dimensional (3D) printing of vascular structures is of special interest for procedure simulations in Interventional Radiology, but remains due to the complexity of the vascular system and the lack of biological tissue mimicking 3D printing materials a technical challenge. In this study, the technical feasibility, accuracy, and usability of a recently introduced silicone-like resin were evaluated for endovascular procedure simulations and technically compared to a commonly used standard clear resin. Fifty-four vascular models based on twenty-seven consecutive embolization cases were fabricated from preinterventional CT scans and each model was checked for printing success and accuracy by CT-scanning and digital comparison to its original CT data. Median deltas (Δ) of luminal diameters were 0.35 mm for clear and 0.32 mm for flexible resin (216 measurements in total) with no significant differences (p > 0.05). Printing success was 85.2% for standard clear and 81.5% for the novel flexible resin. In conclusion, vascular 3D printing with silicone-like flexible resin was technically feasible and highly accurate. This is the first and largest consecutive case series of 3D-printed embolizations with a novel biological tissue mimicking material and is a promising next step in patient-specific procedure simulations in Interventional Radiology.
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Affiliation(s)
- R. Kaufmann
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria
- Clinic of Radiology & Nuclear Medicine, University Hospital Basel, University of Basel, 4031 Basel, Switzerland
| | - C. J. Zech
- Clinic of Radiology & Nuclear Medicine, University Hospital Basel, University of Basel, 4031 Basel, Switzerland
| | - M. Takes
- Clinic of Radiology & Nuclear Medicine, University Hospital Basel, University of Basel, 4031 Basel, Switzerland
| | - P. Brantner
- Clinic of Radiology & Nuclear Medicine, University Hospital Basel, University of Basel, 4031 Basel, Switzerland
| | - F. Thieringer
- Clinic for Oral and Maxillofacial Surgery, University Hospital Basel, University of Basel, 4031 Basel, Switzerland
| | - M. Deutschmann
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria
| | - K. Hergan
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria
| | - B. Scharinger
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria
| | - S. Hecht
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria
| | - R. Rezar
- Clinic of Internal Medicine II, Department of Cardiology and Internal Intensive Care Medicine, University Hospital Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria
| | - B. Wernly
- Clinic of Internal Medicine II, Department of Cardiology and Internal Intensive Care Medicine, University Hospital Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria
| | - M. Meissnitzer
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria
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7
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Tsui JK, Bell S, Cruz LD, Dick AD, Sagoo MS. Applications of Three-dimensional Printing in Ophthalmology. Surv Ophthalmol 2022; 67:1287-1310. [DOI: 10.1016/j.survophthal.2022.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 01/16/2022] [Accepted: 01/19/2022] [Indexed: 12/15/2022]
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8
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Jin Z, Li Y, Yu K, Liu L, Fu J, Yao X, Zhang A, He Y. 3D Printing of Physical Organ Models: Recent Developments and Challenges. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2101394. [PMID: 34240580 PMCID: PMC8425903 DOI: 10.1002/advs.202101394] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/14/2021] [Indexed: 05/05/2023]
Abstract
Physical organ models are the objects that replicate the patient-specific anatomy and have played important roles in modern medical diagnosis and disease treatment. 3D printing, as a powerful multi-function manufacturing technology, breaks the limitations of traditional methods and provides a great potential for manufacturing organ models. However, the clinical application of organ model is still in small scale, facing the challenges including high cost, poor mimicking performance and insufficient accuracy. In this review, the mainstream 3D printing technologies are introduced, and the existing manufacturing methods are divided into "directly printing" and "indirectly printing", with an emphasis on choosing suitable techniques and materials. This review also summarizes the ideas to address these challenges and focuses on three points: 1) what are the characteristics and requirements of organ models in different application scenarios, 2) how to choose the suitable 3D printing methods and materials according to different application categories, and 3) how to reduce the cost of organ models and make the process simple and convenient. Moreover, the state-of-the-art in organ models are summarized and the contribution of 3D printed organ models to various surgical procedures is highlighted. Finally, current limitations, evaluation criteria and future perspectives for this emerging area are discussed.
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Affiliation(s)
- Zhongboyu Jin
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Yuanrong Li
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Kang Yu
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Linxiang Liu
- Zhejiang University HospitalZhejiang UniversityHangzhouZhejiang310027China
| | - Jianzhong Fu
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Xinhua Yao
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Aiguo Zhang
- Department of OrthopedicsWuxi Children's Hospital affiliated to Nanjing Medical UniversityWuxiJiangsu214023China
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic SystemsSchool of Mechanical EngineeringZhejiang UniversityHangzhouZhejiang310027China
- Key Laboratory of Materials Processing and MoldZhengzhou UniversityZhengzhou450002China
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Ragazzini N, Dds PB, Monaco C, Ciocca L. Digital Jaw Relation Record of Edentulous Patients in the CAD-CAM Workflow of the Implant-Supported Full-Arch Prosthesis. J ORAL IMPLANTOL 2021; 47:57-62. [PMID: 32662838 DOI: 10.1563/aaid-joi-d-19-00276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Nicola Ragazzini
- Section of Prosthodontics, Department of Biomedical and Neuromotor Science, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Paolo Baldissara Dds
- Section of Prosthodontics, Department of Biomedical and Neuromotor Science, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Carlo Monaco
- Section of Prosthodontics, Department of Biomedical and Neuromotor Science, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Leonardo Ciocca
- Section of Prosthodontics, Department of Biomedical and Neuromotor Science, Alma Mater Studiorum University of Bologna, Bologna, Italy
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10
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Sadid-Zadeh R, Al Qaraghuli A. Rehabilitating simulated worn dentition by using a complete digital workflow and five anatomic guidelines. J Prosthet Dent 2021; 127:44-48. [PMID: 33386136 DOI: 10.1016/j.prosdent.2020.11.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/20/2020] [Accepted: 11/20/2020] [Indexed: 11/26/2022]
Abstract
This report describes the rehabilitation of worn dentition by using a complete digital workflow on a nonhinged simulated patient. A dentiform was used to represent an individual with loss of occlusal vertical dimension. Interim restorations were designed following the simulated patient's midline, interpupillary line, and ala-tragus line and a defined central incisal edge position, posterior maxillary teeth central groove, and buccal cusp position of posterior maxillary teeth. The definitive restorations were then designed and fabricated by following the contour of the interim restorations.
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Affiliation(s)
- Ramtin Sadid-Zadeh
- Associate Professor, Assistant Dean of Digital Technologies, Department of Restorative Dentistry, University at Buffalo School of Dental Medicine, Buffalo, NY.
| | - Abdullah Al Qaraghuli
- Dental student, Department of Restorative Dentistry, University at Buffalo School of Dental Medicine, Buffalo, NY
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Chung JJ, Im H, Kim SH, Park JW, Jung Y. Toward Biomimetic Scaffolds for Tissue Engineering: 3D Printing Techniques in Regenerative Medicine. Front Bioeng Biotechnol 2020; 8:586406. [PMID: 33251199 PMCID: PMC7671964 DOI: 10.3389/fbioe.2020.586406] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/05/2020] [Indexed: 12/21/2022] Open
Abstract
Three-dimensional (3D) printing technology allows fabricating complex and precise structures by stacking materials layer by layer. The fabrication method has a strong potential in the regenerative medicine field to produce customizable and defect-fillable scaffolds for tissue regeneration. Plus, biocompatible materials, bioactive molecules, and cells can be printed together or separately to enhance scaffolds, which can save patients who suffer from shortage of transplantable organs. There are various 3D printing techniques that depend on the types of materials, or inks, used. Here, different types of organs (bone, cartilage, heart valve, liver, and skin) that are aided by 3D printed scaffolds and printing methods that are applied in the biomedical fields are reviewed.
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Affiliation(s)
- Justin J. Chung
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, South Korea
| | - Heejung Im
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, South Korea
| | - Soo Hyun Kim
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, South Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, South Korea
| | - Jong Woong Park
- Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul, South Korea
| | - Youngmee Jung
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, South Korea
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea
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12
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Liang R, Gu Y, Wu Y, Bunpetch V, Zhang S. Lithography-Based 3D Bioprinting and Bioinks for Bone Repair and Regeneration. ACS Biomater Sci Eng 2020; 7:806-816. [PMID: 33715367 DOI: 10.1021/acsbiomaterials.9b01818] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The fabrication of scaffolds that precisely mimic the natural structure and physiochemical properties of bone is still one of the most challenging tasks in bone tissue engineering. 3D printing techniques have drawn increasing attention due to their ability to fabricate scaffolds with complex structures and multiple bioinks. For bone tissue engineering, lithography-based 3D bioprinting is frequently utilized due to its printing speed, mild printing process, and cost-effective benefits. In this review, lithography-based 3D bioprinting technologies including SLA and DLP are introduced; their typical applications in biological system and bioinks are also explored and summarized. Furthermore, we discussed possible evolution of the hardware/software systems and bioinks of lithography-based 3D bioprinting, as well as their future applications.
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Affiliation(s)
- Renjie Liang
- School of Basic Medical Sciences, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Yuqing Gu
- School of Basic Medical Sciences, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Yicong Wu
- School of Basic Medical Sciences, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Varitsara Bunpetch
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Shufang Zhang
- School of Basic Medical Sciences, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310058, China.,China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
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13
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Ming-Chi Hsieh A, Kuan-Chou Lin C, Hou-Ren Jiang S, Seah TE. Esthetic Occipital Augmentation With Computer-Aided Design-Computer-Aided Manufacturing Prefabricated Customized Polymethyl Methacrylate Implant: Comparison of Planned and Final Results. J Oral Maxillofac Surg 2020; 78:1191.e1-1191.e8. [PMID: 32277939 DOI: 10.1016/j.joms.2020.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/05/2020] [Accepted: 03/05/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE Augmentation of the occiput is an esthetic procedure that is gaining more popularity but is not well reported in the literature. The aim of this retrospective study on a case series of patients was to describe the use of computer-aided design-computer-aided manufacturing prefabricated polymethyl methacrylate (PMMA) implants in esthetic occipital augmentation. Furthermore, comparison between the surgical outcome and the digital planning was carried out to ascertain the replicability of the surgical planning. MATERIALS AND METHODS We performed a retrospective study of a case series of patients who underwent occipital augmentation with computer-aided design-computer-aided manufacturing prefabricated implants. Customized PMMA occipital implants were fabricated and were inserted via a bicoronal approach with patients under general anesthesia. The patients' 1-week postoperative cone-beam computed tomography image was superimposed onto the preoperative virtual planning images, and the positions of the actual implant and virtual implant were compared. RESULTS A total of 15 patients who were treated at Charm Clinic, Taipei, Taiwan, and received occipital implants for esthetic purposes were included in this study. The percentage overlap of the occipital implant ranged from 87.8% to 99.99% (mean, 95.71%). One patient experienced partial wound dehiscence, which recovered after wound revision and suturing. In another patient, mild hematoma developed, which resolved spontaneously. Although no formal questionnaire was administered, all patients expressed satisfaction with the cosmetic outcome. CONCLUSIONS The use of prefabricated PMMA posterior calvarial implants showed a rate of replicability of 87.8% to 99.99% (mean, 95.71%) compared with the preoperative virtual planning, and we recommend it as a feasible method for esthetic occipital augmentation.
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Affiliation(s)
| | - Charles Kuan-Chou Lin
- Professor and Head, Department of Oral and Maxillofacial Surgery, Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | | | - Tian-Ee Seah
- Private Practitioner, TES Clinic for Face and Jaw, Singapore, and Visiting Consultant, Kadang Kerbau Women and Children's Hospital, National Dental Centre Singapore, Singapore General Hospital, Singapore, Singapore.
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Abd Fattah SYAS, Hariri F, Nambiar P, Abu Bakar Z, Abdul Rahman ZA. Determining the Accuracy of the Mandibular Canal Region in 3D Biomodels Fabricated from CBCT Scanned Data: A Cadaveric Study. Curr Med Imaging 2020; 15:645-653. [PMID: 32008512 DOI: 10.2174/1573405614666181012144745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 09/25/2018] [Accepted: 09/27/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To validate the accuracy of the mandibular canal region in 3D biomodel produced by using data obtained from Cone-Beam Computed Tomography (CBCT) of cadaveric mandibles. METHODS Six hemi-mandible samples were scanned using the i-CAT CBCT system. The scanned data was transferred to the OsiriX software for measurement protocol and subsequently into Mimics software to fabricate customized cutting jigs and 3D biomodels based on rapid prototyping technology. The hemi-mandibles were segmented into 5 dentoalveolar blocks using the customized jigs. Digital calliper was used to measure six distances surrounding the mandibular canal on each section. The same distances were measured on the corresponding cross-sectional OsiriX images and the 3D biomodels of each dentoalveolar block. RESULTS Statistically no significant difference was found when measurements from OsiriX images and 3D biomodels were compared to the "gold standard" -direct digital calliper measurement of the cadaveric dentoalveolar blocks. Moreover, the mean value difference of the various measurements between the different study components was also minimal. CONCLUSION Various distances surrounding the mandibular canal from 3D biomodels produced from the CBCT scanned data was similar to that of direct digital calliper measurements of the cadaveric specimens.
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Affiliation(s)
| | - Firdaus Hariri
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Phrabhakaran Nambiar
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Zulkiflee Abu Bakar
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Zainal Ariff Abdul Rahman
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
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Abstract
Three-dimensional (3D) printing of human tissues and organs has been an exciting area of research for almost three decades [Bonassar and Vacanti. J Cell Biochem. 72(Suppl 30-31):297-303 (1998)]. The primary goal of bioprinting, presently, is achieving printed constructs with the overarching aim toward fully functional tissues and organs. Technology, in hand with the development of bioinks, has been identified as the key to this success. As a result, the place of computer-aided systems (design and manufacturing-CAD/CAM) cannot be underestimated and plays a significant role in this area. Unlike many reviews in this field, this chapter focuses on the technology required for 3D bioprinting from an initial background followed by the exciting area of medical imaging and how it plays a role in bioprinting. Extraction and classification of tissue types from 3D scans is discussed in addition to modeling and simulation capabilities of scanned systems. After that, the necessary area of transferring the 3D model to the printer is explored. The chapter closes with a discussion of the current state-of-the-art and inherent challenges facing the research domain to achieve 3D tissue and organ printing.
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Steinberg B, Caccamese J, Costello BJ, Woerner J. Cleft and Craniofacial Surgery. J Oral Maxillofac Surg 2019; 75:e126-e150. [PMID: 28728728 DOI: 10.1016/j.joms.2017.04.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Sarker MD, Naghieh S, Sharma NK, Ning L, Chen X. Bioprinting of Vascularized Tissue Scaffolds: Influence of Biopolymer, Cells, Growth Factors, and Gene Delivery. JOURNAL OF HEALTHCARE ENGINEERING 2019; 2019:9156921. [PMID: 31065331 PMCID: PMC6466897 DOI: 10.1155/2019/9156921] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 02/03/2019] [Indexed: 01/16/2023]
Abstract
Over the past decades, tissue regeneration with scaffolds has achieved significant progress that would eventually be able to solve the worldwide crisis of tissue and organ regeneration. While the recent advancement in additive manufacturing technique has facilitated the biofabrication of scaffolds mimicking the host tissue, thick tissue regeneration remains challenging to date due to the growing complexity of interconnected, stable, and functional vascular network within the scaffold. Since the biological performance of scaffolds affects the blood vessel regeneration process, perfect selection and manipulation of biological factors (i.e., biopolymers, cells, growth factors, and gene delivery) are required to grow capillary and macro blood vessels. Therefore, in this study, a brief review has been presented regarding the recent progress in vasculature formation using single, dual, or multiple biological factors. Besides, a number of ways have been presented to incorporate these factors into scaffolds. The merits and shortcomings associated with the application of each factor have been highlighted, and future research direction has been suggested.
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Affiliation(s)
- M. D. Sarker
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Saman Naghieh
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - N. K. Sharma
- Department of Mechanical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Liqun Ning
- Department of Mechanical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Xiongbiao Chen
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
- Department of Mechanical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
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VanKoevering KK, Zopf DA, Hollister SJ. Tissue Engineering and 3-Dimensional Modeling for Facial Reconstruction. Facial Plast Surg Clin North Am 2019; 27:151-161. [PMID: 30420069 DOI: 10.1016/j.fsc.2018.08.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Three-dimensional (3D) printing has transformed craniofacial reconstruction over the last 2 decades. For cutaneous oncologic surgeons, several 3D printed technologies are available to assist with craniofacial bony reconstruction and preliminary soft tissue reconstructive efforts. With improved accessibility and simplified design software, 3D printing has opened the door for new techniques in anaplastology. Tissue engineering has more recently emerged as a promising concept for complex auricular and nasal reconstruction. Combined with 3D printing, several groups have demonstrated promising preclinical results with cartilage growth. This article highlights the applications and current state of 3D printing and tissue engineering in craniofacial reconstruction.
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Affiliation(s)
- Kyle K VanKoevering
- Department of Otolaryngology-Head and Neck Surgery, University of Michigan Medical Center, 1500 East Medical Center Drive, 1904 Taubman Center, Ann Arbor, MI 48109, USA.
| | - David A Zopf
- Department of Otolaryngology-Head and Neck Surgery, Division of Pediatric Otolaryngology, University of Michigan Medical Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA
| | - Scott J Hollister
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, 313 Ferst Drive Northwest, Atlanta, GA 30332, USA
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Sarker M, Naghieh S, Sharma N, Chen X. 3D biofabrication of vascular networks for tissue regeneration: A report on recent advances. J Pharm Anal 2018; 8:277-296. [PMID: 30345141 PMCID: PMC6190507 DOI: 10.1016/j.jpha.2018.08.005] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/24/2018] [Accepted: 08/26/2018] [Indexed: 12/19/2022] Open
Abstract
Rapid progress in tissue engineering research in past decades has opened up vast possibilities to tackle the challenges of generating tissues or organs that mimic native structures. The success of tissue engineered constructs largely depends on the incorporation of a stable vascular network that eventually anastomoses with the host vasculature to support the various biological functions of embedded cells. In recent years, significant progress has been achieved with respect to extrusion, laser, micro-molding, and electrospinning-based techniques that allow the fabrication of any geometry in a layer-by-layer fashion. Moreover, decellularized matrix, self-assembled structures, and cell sheets have been explored to replace the biopolymers needed for scaffold fabrication. While the techniques have evolved to create specific tissues or organs with outstanding geometric precision, formation of interconnected, functional, and perfused vascular networks remains a challenge. This article briefly reviews recent progress in 3D fabrication approaches used to fabricate vascular networks with incorporated cells, angiogenic factors, proteins, and/or peptides. The influence of the fabricated network on blood vessel formation, and the various features, merits, and shortcomings of the various fabrication techniques are discussed and summarized.
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Affiliation(s)
- M.D. Sarker
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Saman Naghieh
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - N.K. Sharma
- Department of Mechanical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Xiongbiao Chen
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
- Department of Mechanical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK, Canada
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Zhang YS, Oklu R, Dokmeci MR, Khademhosseini A. Three-Dimensional Bioprinting Strategies for Tissue Engineering. Cold Spring Harb Perspect Med 2018; 8:a025718. [PMID: 28289247 PMCID: PMC5793742 DOI: 10.1101/cshperspect.a025718] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Over the past decades, many approaches have been developed to fabricate biomimetic extracellular matrices of desired properties for engineering functional tissues. However, the inability of these techniques to precisely control the spatial architecture has posed a significant challenge in producing complex tissues. 3D bioprinting technology has emerged as a potential solution by bringing unprecedented freedom and versatility in depositing biological materials and cells in a well-controlled manner in the 3D volumes, therefore achieving precision engineering of functional tissues. In this article, we review the application of 3D bioprinting to tissue engineering. We first discuss the general strategies for printing functional tissue constructs. We next describe different types of bioprinting with a focus on nozzle-based techniques and their respective advantages. Finally, we summarize the limitations of current technologies and propose challenges for future development of bioprinting.
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Affiliation(s)
- Yu Shrike Zhang
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115
| | - Rahmi Oklu
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139
- Division of Vascular & Interventional Radiology, Mayo Clinic, Scottsdale, Arizona 85259
| | - Mehmet Remzi Dokmeci
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea
- Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
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Hassan B, Greven M, Wismeijer D. Integrating 3D facial scanning in a digital workflow to CAD/CAM design and fabricate complete dentures for immediate total mouth rehabilitation. J Adv Prosthodont 2017; 9:381-386. [PMID: 29142646 PMCID: PMC5673615 DOI: 10.4047/jap.2017.9.5.381] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 05/31/2017] [Accepted: 07/04/2017] [Indexed: 12/03/2022] Open
Abstract
PURPOSE To integrate extra-oral facial scanning information with CAD/CAM complete dentures to immediately rehabilitate terminal dentition. MATERIALS AND METHODS Ten patients with terminal dentition scheduled for total extraction and immediate denture placement were recruited for this study. The patients were submitted to a facial scanning procedure using the in-office PritiMirror scanner with bite registration records in-situ. Definitive stone cast models and bite records were subsequently submitted to a lab scanning procedure using the lab scanner (iSeries DWOS; Dental Wings). The scanned models were used to create a virtual teeth setup of a complete denture. Using the intra-oral bite records as a reference, the virtual setup was incorporated in the facial scan thereby facilitating a virtual clinical evaluation (teeth try-in) phase. After applying necessary adjustments, the virtual setup was submitted to a CAM procedure where a 5-axis industrial milling machine (M7 CNC; Darton AG General) was used to fabricate a full-milled PMMA immediate provisional prosthesis. RESULTS Total extractions were performed, the dentures were immediately inserted, and subjective clinical fit was evaluated. The immediate provisional prostheses were inserted and clinical fit, occlusion/articulation, and esthetics were subjectively assessed; the results were deemed satisfactory. All provisional prostheses remained three months in function with no notable technical complications. CONCLUSION Ten patients with terminal dentition were treated using a complete digital approach to fabricate complete dentures using CAD/CAM technology. The proposed technique has the potential to accelerate the rehabilitation procedure starting from immediate denture to final implant-supported prosthesis leading to more predictable functional and aesthetics outcomes.
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Affiliation(s)
- Bassam Hassan
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Marcus Greven
- Department of Prosthodontics, Vienna School of Interdisciplinary Dentistry, Medical University Vienna, Wien, Austria
| | - Daniel Wismeijer
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
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Unterhofer C, Wipplinger C, Verius M, Recheis W, Thomé C, Ortler M. Reconstruction of large cranial defects with poly-methyl-methacrylate (PMMA) using a rapid prototyping model and a new technique for intraoperative implant modeling. Neurol Neurochir Pol 2017; 51:214-220. [DOI: 10.1016/j.pjnns.2017.02.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 02/06/2017] [Accepted: 02/23/2017] [Indexed: 10/20/2022]
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Hassan B, Gimenez Gonzalez B, Tahmaseb A, Greven M, Wismeijer D. A digital approach integrating facial scanning in a CAD-CAM workflow for complete-mouth implant-supported rehabilitation of patients with edentulism: A pilot clinical study. J Prosthet Dent 2017; 117:486-492. [DOI: 10.1016/j.prosdent.2016.07.033] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Revised: 07/19/2016] [Accepted: 07/20/2016] [Indexed: 11/25/2022]
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Kim GB, Lee S, Kim H, Yang DH, Kim YH, Kyung YS, Kim CS, Choi SH, Kim BJ, Ha H, Kwon SU, Kim N. Three-Dimensional Printing: Basic Principles and Applications in Medicine and Radiology. Korean J Radiol 2016; 17:182-97. [PMID: 26957903 PMCID: PMC4781757 DOI: 10.3348/kjr.2016.17.2.182] [Citation(s) in RCA: 151] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 11/28/2015] [Indexed: 01/01/2023] Open
Abstract
The advent of three-dimensional printing (3DP) technology has enabled the creation of a tangible and complex 3D object that goes beyond a simple 3D-shaded visualization on a flat monitor. Since the early 2000s, 3DP machines have been used only in hard tissue applications. Recently developed multi-materials for 3DP have been used extensively for a variety of medical applications, such as personalized surgical planning and guidance, customized implants, biomedical research, and preclinical education. In this review article, we discuss the 3D reconstruction process, touching on medical imaging, and various 3DP systems applicable to medicine. In addition, the 3DP medical applications using multi-materials are introduced, as well as our recent results.
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Affiliation(s)
- Guk Bae Kim
- Biomedical Engineering Research Center, Asan Institute of Life Science, Asan Medical Center, Seoul 05505, Korea
| | - Sangwook Lee
- Biomedical Engineering Research Center, Asan Institute of Life Science, Asan Medical Center, Seoul 05505, Korea
| | - Haekang Kim
- Biomedical Engineering Research Center, Asan Institute of Life Science, Asan Medical Center, Seoul 05505, Korea
| | - Dong Hyun Yang
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Young-Hak Kim
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Yoon Soo Kyung
- Department of Health Screening and Promotion Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Choung-Soo Kim
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Se Hoon Choi
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Bum Joon Kim
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Hojin Ha
- POSTECH Biotech Center, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Sun U Kwon
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Namkug Kim
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
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Singh D, Singh D, Han SS. 3D Printing of Scaffold for Cells Delivery: Advances in Skin Tissue Engineering. Polymers (Basel) 2016; 8:polym8010019. [PMID: 30979115 PMCID: PMC6432526 DOI: 10.3390/polym8010019] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 01/08/2016] [Accepted: 01/08/2016] [Indexed: 01/01/2023] Open
Abstract
Injury or damage to tissue and organs is a major health problem, resulting in about half of the world’s annual healthcare expenditure every year. Advances in the fields of stem cells (SCs) and biomaterials processing have provided a tremendous leap for researchers to manipulate the dynamics between these two, and obtain a skin substitute that can completely heal the wounded areas. Although wound healing needs a coordinated interplay between cells, extracellular proteins and growth factors, the most important players in this process are the endogenous SCs, which activate the repair cascade by recruiting cells from different sites. Extra cellular matrix (ECM) proteins are activated by these SCs, which in turn aid in cellular migrations and finally secretion of growth factors that can seal and heal the wounds. The interaction between ECM proteins and SCs helps the skin to sustain the rigors of everyday activity, and in an attempt to attain this level of functionality in artificial three-dimensional (3D) constructs, tissue engineered biomaterials are fabricated using more advanced techniques such as bioprinting and laser assisted printing of the organs. This review provides a concise summary of the most recent advances that have been made in the area of polymer bio-fabrication using 3D bio printing used for encapsulating stem cells for skin regeneration. The focus of this review is to describe, in detail, the role of 3D architecture and arrangement of cells within this system that can heal wounds and aid in skin regeneration.
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Affiliation(s)
- Deepti Singh
- Department of Surgery, Yale School of Medicine, Yale University, New Haven, CT-06510, CT, USA.
| | - Dolly Singh
- Biomaterials Lab, Department of Nano, Medical & Polymer Materials, College of Engineering, Yeungnam University, 280 Daehak-ko, Gyeongsan, Gyeongsanbukdo 712-749, Korea.
| | - Sung Soo Han
- Biomaterials Lab, Department of Nano, Medical & Polymer Materials, College of Engineering, Yeungnam University, 280 Daehak-ko, Gyeongsan, Gyeongsanbukdo 712-749, Korea.
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Clinical application of three-dimensional printing technology in craniofacial plastic surgery. Arch Plast Surg 2015; 42:267-77. [PMID: 26015880 PMCID: PMC4439584 DOI: 10.5999/aps.2015.42.3.267] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 03/02/2015] [Accepted: 03/03/2015] [Indexed: 11/08/2022] Open
Abstract
Three-dimensional (3D) printing has been particularly widely adopted in medical fields. Application of the 3D printing technique has even been extended to bio-cell printing for 3D tissue/organ development, the creation of scaffolds for tissue engineering, and actual clinical application for various medical parts. Of various medical fields, craniofacial plastic surgery is one of areas that pioneered the use of the 3D printing concept. Rapid prototype technology was introduced in the 1990s to medicine via computer-aided design, computer-aided manufacturing. To investigate the current status of 3D printing technology and its clinical application, a systematic review of the literature was conducted. In addition, the benefits and possibilities of the clinical application of 3D printing in craniofacial surgery are reviewed, based on personal experiences with more than 500 craniofacial cases conducted using 3D printing tactile prototype models.
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3D bioprinting of tissues and organs. Nat Biotechnol 2015; 32:773-85. [PMID: 25093879 DOI: 10.1038/nbt.2958] [Citation(s) in RCA: 3348] [Impact Index Per Article: 372.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 06/12/2014] [Indexed: 02/07/2023]
Abstract
Additive manufacturing, otherwise known as three-dimensional (3D) printing, is driving major innovations in many areas, such as engineering, manufacturing, art, education and medicine. Recent advances have enabled 3D printing of biocompatible materials, cells and supporting components into complex 3D functional living tissues. 3D bioprinting is being applied to regenerative medicine to address the need for tissues and organs suitable for transplantation. Compared with non-biological printing, 3D bioprinting involves additional complexities, such as the choice of materials, cell types, growth and differentiation factors, and technical challenges related to the sensitivities of living cells and the construction of tissues. Addressing these complexities requires the integration of technologies from the fields of engineering, biomaterials science, cell biology, physics and medicine. 3D bioprinting has already been used for the generation and transplantation of several tissues, including multilayered skin, bone, vascular grafts, tracheal splints, heart tissue and cartilaginous structures. Other applications include developing high-throughput 3D-bioprinted tissue models for research, drug discovery and toxicology.
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Prithviraj DR, Bhalla HK, Vashisht R, Sounderraj K, Prithvi S. Revolutionizing restorative dentistry: an overview. J Indian Prosthodont Soc 2014; 14:333-43. [PMID: 25489155 PMCID: PMC4257941 DOI: 10.1007/s13191-014-0351-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Accepted: 01/12/2014] [Indexed: 10/25/2022] Open
Abstract
The field of science and research is ever changing and the scientific discipline of prosthodontics is no exception. The practice of prosthodontics and the supporting technology involved has evolved tremendously from the traditional to the contemporary. As a result of continual developments in technology, new methods of production and new treatment concepts may be expected. Clinicians must have certain basic knowledge if they are to benefit from these new procedures. This article reviews the contemporary trends in the field of prosthodontics and provides an insight into what one might expect in the near future.
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Affiliation(s)
- D. R. Prithviraj
- />Department of Prosthodontics, Government Dental College and Research Institute, Victoria Hospital Campus, Fort, Bangalore, 560002 India
| | - Harleen Kaur Bhalla
- />Department of Prosthodontics, Government Dental College and Research Institute, Victoria Hospital Campus, Fort, Bangalore, 560002 India
| | - Richa Vashisht
- />Department of Prosthodontics, Government Dental College and Research Institute, Victoria Hospital Campus, Fort, Bangalore, 560002 India
| | - K. Sounderraj
- />Department of Prosthodontics, Government Dental College and Research Institute, Victoria Hospital Campus, Fort, Bangalore, 560002 India
| | - Shruthi Prithvi
- />Department of Orthodontics, Dayanand Sagar College of Dental Sciences, Bangalore, India
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Chae MP, Lin F, Spychal RT, Hunter-Smith DJ, Rozen WM. 3D-printed haptic "reverse" models for preoperative planning in soft tissue reconstruction: a case report. Microsurgery 2014; 35:148-53. [PMID: 25046728 DOI: 10.1002/micr.22293] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 07/03/2014] [Accepted: 07/07/2014] [Indexed: 11/06/2022]
Abstract
In reconstructive surgery, preoperative planning is essential for optimal functional and aesthetic outcome. Creating a three-dimensional (3D) model from two-dimensional (2D) imaging data by rapid prototyping has been used in industrial design for decades but has only recently been introduced for medical application. 3D printing is one such technique that is fast, convenient, and relatively affordable. In this report, we present a case in which a reproducible method for producing a 3D-printed "reverse model" representing a skin wound defect was used for flap design and harvesting. This comprised a 82-year-old man with an exposed ankle prosthesis after serial soft tissue debridements for wound infection. Soft tissue coverage and dead-space filling were planned with a composite radial forearm free flap (RFFF). Computed tomographic angiography (CTA) of the donor site (left forearm), recipient site (right ankle), and the left ankle was performed. 2D data from the CTA was 3D-reconstructed using computer software, with a 3D image of the left ankle used as a "control." A 3D model was created by superimposing the left and right ankle images, to create a "reverse image" of the defect, and printed using a 3D printer. The RFFF was thus planned and executed effectively, without complication. To our knowledge, this is the first report of a mechanism of calculating a soft tissue wound defect and producing a 3D model that may be useful for surgical planning. 3D printing and particularly "reverse" modeling may be versatile options in reconstructive planning, and have the potential for broad application.
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Affiliation(s)
- Michael P Chae
- Department of Plastic and Reconstructive Surgery, Frankston Hospital, Peninsula Health, Frankston, VIC, Australia; Department of Surgery, Monash University, Monash Medical Centre, Clayton, VIC, Australia; Monash University Plastic and Reconstructive Surgery Unit (Peninsula Clinical School), Peninsula Health, Frankston, VIC, Australia
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Choi KH, Song BR, Yoo BS, Choi BH, Park SR, Min BH. A laser scan-based system to measure three dimensional conformation and volume of tissue-engineered constructs. Tissue Eng Regen Med 2013. [DOI: 10.1007/s13770-013-1099-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Van Der Smissen B, Claessens T, Verdonck P, Van Ransbeeck P, Segers P. Modelling the left ventricle using rapid prototyping techniques. Ing Rech Biomed 2013. [DOI: 10.1016/j.irbm.2013.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
BACKGROUND AND OBJECTIVE Virtual surgical simulation and training system offers a cost-effective and efficient alternative to traditional training and surgical planning. However, the algorithm for surgical simulation is sophisticated, and the requirement of computer software and hardware is high. The objective of this study was to explore the feasibility of tree-structure architectonic model in simplifying and realizing virtual orthognathic surgical simulation. METHODS Four patients with skeletal malocclusions were enrolled in this study. Craniomaxillofacial computed tomography scan was obtained, and three-dimensional model was reconstructed using Simplant software. Maxillary Le Fort I osteotomy, bilateral sagittal split ramus osteotomy, vertical ramus osteotomy, and genioplasty were carried out on the three-dimensional model in advance. Tree-structure architectonic model was established in the sterolithography format. With stereoscopic glasses, using digital gloves, operators immersed in virtual environment and operated on "real" patients performing surgical simulation. RESULTS Through establishing tree-structure architectonic model in advance, the complex algorithm for virtual osteotomy was simplified, and computational complexity was reduced. Three-dimensional model can be visualized from any viewing point. Operators were immersed in the virtual environment with a conspicuous sense of immersion. An obvious image and tactile feedback was perceived when touching and moving the bony segments. Virtual orthognathic surgical simulation and training were realized with real-time image and tactile perception feedback. CONCLUSIONS Establishing tree-structure architectonic model in advance is an ideal alternative in implementing virtual orthognathic surgical simulation. Virtual surgical simulation and training were realized with a strong sense of immersion. Craniomaxillofacial three-dimensional virtual surgical simulation system can be used in orthognathic surgical planning, simulation, and operation training.
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Melchels F, Wiggenhauser PS, Warne D, Barry M, Ong FR, Chong WS, Hutmacher DW, Schantz JT. CAD/CAM-assisted breast reconstruction. Biofabrication 2011; 3:034114. [DOI: 10.1088/1758-5082/3/3/034114] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhang S, Liu X, Xu Y, Yang C, Undt G, Chen M, Haddad MS, Yun B. Application of Rapid Prototyping for Temporomandibular Joint Reconstruction. J Oral Maxillofac Surg 2011; 69:432-8. [DOI: 10.1016/j.joms.2010.05.081] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2010] [Revised: 03/14/2010] [Accepted: 05/19/2010] [Indexed: 11/26/2022]
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Melchels FP, Feijen J, Grijpma DW. A review on stereolithography and its applications in biomedical engineering. Biomaterials 2010; 31:6121-30. [DOI: 10.1016/j.biomaterials.2010.04.050] [Citation(s) in RCA: 1125] [Impact Index Per Article: 80.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2010] [Accepted: 04/22/2010] [Indexed: 10/19/2022]
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Malthan D, Ehrlich G, Stallkamp J, Dammann F, Schwaderer E, Maassen MM. Automated Registration of Partially Defective Surfaces by Local Landmark Identification. ACTA ACUST UNITED AC 2010; 8:300-9. [PMID: 15742667 DOI: 10.3109/10929080309146068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE In computer- and robot-assisted surgery, the term "registration" refers to the definition of the geometrical relationship between the coordinate system of a surgical planning system and that of the patient. Within the context of the development of a navigation and control system for computer- and robot-assisted surgery of the lateral skull base, it was desirable to realize an algorithm for automated registration of partially defective surfaces that is reliable and suitable for use in clinical practice. MATERIALS AND METHODS A registration algorithm based on the use of local fingerprints for specific points on a surface (so-called "spin images") was developed. Anatomical patient landmarks were identified automatically and assigned to CT data, performing a cross-correlation analysis and an investigation of the geometrical consistency. The algorithm was evaluated within the development of the navigation and robotic control system in a laboratory setting. RESULTS Under laboratory conditions it could be shown that partially defective surfaces (simulated by, for example, adding white noise, or reducing or smoothing the polygon data) were correctly recognized and thereby registered. In particular, the algorithm proved its excellence in interpreting partially modified topologies. CONCLUSIONS The proposed procedure can be used to accomplish dynamic intra-operative registration of the skull bone by the generation of point relations to the CT images.
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Affiliation(s)
- Dirk Malthan
- Fraunhofer-Institute for Manufacturing Engineering and Automation (IPA), Stuttgart, Germany.
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Rodt T, Bartling SO, Zajaczek JE, Vafa MA, Kapapa T, Majdani O, Krauss JK, Zumkeller M, Matthies H, Becker H, Kaminsky J. Evaluation of surface and volume rendering in 3D-CT of facial fractures. Dentomaxillofac Radiol 2006; 35:227-31. [PMID: 16798916 DOI: 10.1259/dmfr/22989395] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Three-dimensional computed tomography (3D-CT) of facial fractures has been reported as beneficial using surface (SR) and volume rendering (VR). There are controversial statements concerning the preferable algorithm. The purpose of this study was to evaluate and compare SR and VR for clinical 3D-CT in facial fractures on an experimental basis. METHODS Multislice CT was obtained in 22 patients with facial fractures using two data acquisition protocols. Five SR and VR post-processing protocols were applied. Five assessors independently evaluated the quality of visualization of the fracture gap and dislocated fragments as well as the overall image quality using a five-point rating scale. The potential benefit of the 3D-images for radiological diagnosis and presentation was evaluated. The influence of the data acquisition protocol was analysed. RESULTS SR in general achieved better evaluation scores than VR at corresponding thresholds. Variation of evaluation scores for all criteria was found for SR and VR depending on the segmentation threshold. Apart from the overall image quality no significant influence of the data acquisition technique was found for the evaluated criteria. CONCLUSIONS SR provided sufficient and time efficient means for 3D-visualization of facial fractures in this study. No diagnostic benefit of VR over SR was found.
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Affiliation(s)
- T Rodt
- Department of Neurosurgery, Hannover University Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
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Wurm G, Tomancok B, Holl K, Trenkler J. Prospective study on cranioplasty with individual carbon fiber reinforced polymer (CFRP) implants produced by means of stereolithography. ACTA ACUST UNITED AC 2004; 62:510-21. [PMID: 15576119 DOI: 10.1016/j.surneu.2004.01.025] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2003] [Accepted: 01/22/2004] [Indexed: 11/22/2022]
Abstract
BACKGROUND The aim of this study was to evaluate the value of carbon fiber reinforced polymer (CFRP) cranial implants produced by means of 3-dimensional (3D) stereolithography (SL) and template modeling for reconstructions of complex or extensive cranial defects. PATIENTS A series of 41 cranioplasties with individual CFRP implants was performed in 37 patients between April 1996 and November 2002. Only patients with complex and/or large cranial defects were included, most of them having extended scarring or dural calcification and poor quality of the overlying soft-tissue cover after infection or multiple preceding operations. Involvement of frontal sinus, a known risk factor for complications after cranioplasty, was the case in 21 patients (51.2%). METHODS A computer-based 3D model of the skull with the bony defect was generated by means of stereolithography after acquisition, evaluation and transfer of the patient's helical computed tomography (CT) data. A wax template of the defect that was used to design the individual prosthesis-shape was invested in dental stone. Then, the cranial implant was fabricated out of CFRP by loosen mold. RESULTS Reconstruction of defects measuring up to 17 x 9 cm was performed. The intra-operative fit of the implants was excellent in 36 (87.8%), good in 1 (2.4%), and fair in 4 (9.8%) of the cases. Problems of implant fit occurred because of extended scarring and poor quality of soft-tissue cover. Adverse reactions were observed in 5 patients (1 subdural, 1 subcutaneous hematoma, 2 infections, 1 allergic reaction). Excellent contours and a solid stable reconstruction have been maintained in 30 out of 35 remaining plates (mean follow-up 3.6 years). No adverse effects concerning postoperative imaging, the accuracy of electroencephalograms and radiation therapy have been observed. CONCLUSIONS The authors believe that this relatively new technique represents an advance in the management of complex and large cranial defects, but seems less suitable for simple defects because of cost-intensive techniques. Because of the high mechanical strength, biocompatibility, innovative design, and especially radiolucency, CFRP implants should, however, be considered in smaller defects if further imaging investigations or irradiation therapies are necessary.
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Affiliation(s)
- Gabriele Wurm
- Department of Neurosurgery, Landesnervenklinik Wagner Jauregg, Linz, Austria
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Gronet PM, Waskewicz GA, Richardson C. Preformed acrylic cranial implants using fused deposition modeling: A clinical report. J Prosthet Dent 2003; 90:429-33. [PMID: 14586305 DOI: 10.1016/j.prosdent.2003.08.023] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Fabrication of acrylic cranial implants by conventional methods of moulage and mold formation may be difficult when the margin of the defect cannot be accurately detected. Three-dimensional anatomic models built by fused deposition modeling can serve as templates for the fabrication of custom acrylic implants for large or complicated cranial defects. Virtual mirror imaging of the contralateral nondefect side can facilitate the restoration of symmetry in appearance-sensitive areas. This clinical report presents a method for the fabrication of cranial implants for 2 patients using anatomic modeling technology.
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Abe K, Ono I. A comparison of the shapes of hydroxyapatite implants before and after implantation. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH 2003; 63:312-8. [PMID: 12115763 DOI: 10.1002/jbm.10178] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Based on helical volume scan computed tomography (HVCT) data, it has been demonstrated previously that real-size models can be prepared with the binder-jet method with extremely high precision of various parts ranging from the outer structure of the cranio-maxillofacial bone to such fine parts as the cranial base and the orbital walls. The application of this method to clinical cases with large cranial bone defects has also been studied. The results showed the usefulness of the binder-jet method, employing starch for fixing, with which a model can be prepared faster and with less deformity caused by the weight of the material itself. Therefore, the binder-jet method is expected to attain greater clinical significance in this field. In this study the comparison between the shapes of implants before and after implantation revealed that the most important aspect of the design of hydroxyapatite (HAP) implants was determining the shapes of edges, especially its angles. That is, an implant needs very little trimming before being implanted to the patient's defective site if the shape of the edges of the implant can be designed and prepared to fix the incised bone surfaces properly. In addition, to obtain optimum results it was also shown that it is necessary to design optimal shapes of implants, taking into account thickness, porosity, and curvature, before processing the shapes of edges. It was found necessary to establish a technology and a method for producing HAP implants that perfectly fit cranial bone defects. For this purpose, it would be useful to make a template of the implants using the mirror-reversion and binder-jet methods.
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Affiliation(s)
- Keita Abe
- Ceramics Group, Technology Development Section, New Ceramics Business Division, Asahi Optical Co., Ltd., Maeno-cho, Itabashi-ku, Tokyo, Japan.
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Warren SM, Hedrick MH, Sylvester K, Longaker MT, Chen CM. New directions in bioabsorbable technology. J Neurosurg 2002; 97:481-9. [PMID: 12449205 DOI: 10.3171/spi.2002.97.4.0481] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Generating replacement tissues requires an interdisciplinary approach that combines developmental, cell, and molecular biology with biochemistry, immunology, engineering, medicine, and the material sciences. Because basic cues for tissue engineering may be derived from endogenous models, investigators are learning how to imitate nature. Endogenous models may provide the biological blueprints for tissue restoration, but there is still much to learn. Interdisciplinary barriers must be overcome to create composite, vascularized, patient-specific tissue constructs for replacement and repair. Although multistep, multicomponent tissue fabrication requires an amalgamation of ideas, the following review is limited to the new directions in bioabsorbable technology. The review highlights novel bioabsorbable design and therapeutic (gene, protein, and cell-based) strategies currently being developed to solve common spine-related problems.
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Affiliation(s)
- Stephen M Warren
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts, USA
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Abstract
Generating replacement tissues requires an interdisciplinary approach that combines developmental, cell, and molecular biology with biochemistry, immunology, engineering, medicine, and the material sciences. Since the basic cues for tissue engineering may be derived from endogenous models, investigators are learning how to imitate nature. Endogenous models may provide the biologic blueprints for tissue restoration, but there is still much to learn. Interdisciplinary barriers must be overcome to create composite, vascularized, patient-specific tissue constructs for replacement and repair. Although multistep, multicomponent tissue fabrication requires an amalgamation of ideas, the following review is limited to the new directions in bioabsorbable technology. The review highlights novel bioabsorbable design and therapeutic (gene, protein, and cell-based) strategies that are currently being developed to solve common spinal problems.
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Affiliation(s)
- Stephen M Warren
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Mass, USA
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Schreyer AG, Seitz J, Strutz J, Held P. Magnetic resonance imaging-based virtual endoscopy of inner ear pathology. Otol Neurotol 2002; 23:136-40. [PMID: 11875339 DOI: 10.1097/00129492-200203000-00005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To study the feasibility of high-resolution magnetic resonance imaging (MRI)-based virtual endoscopy of the labyrinth to assess subtle inner ear pathology. STUDY DESIGN A retrospective case review of patient with known inner ear pathology to determine the feasibility and clinical value of MRI-based virtual labyrinthoscopy. SETTING Tertiary referral center. PATIENTS Ten patients with symptoms of sensorineural hearing loss or vertigo who underwent high-resolution MRI between 1996 and 1999. INTERVENTION Diagnostic image modality with three-dimensional (3-D) postprocessing to assess inner ear pathology. MAIN OUTCOME MEASURES To evaluate how 3-D rendering with virtual labyrinthoscopy can depict subtle labyrinthine pathology. RESULTS Cases with typical 3-D models and virtual labyrinthoscopic views are presented to illustrate this new image processing approach. CONCLUSION The virtual endoscopic view of the labyrinth revealed subtle inner ear pathology. This 3-D postprocessing technique is able to render inner surface changes of tiny structures within the inner ear. It can be performed within a very short time using dedicated hybrid rendering techniques. It allows visualization of pathology in a comprehensive way for clinicians and is able to add 3-D information for troubleshooting in doubtful two-dimensional findings. We suggest the term virtual labyrinthoscopy for virtual intraluminal visualization of the labyrinth.
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Affiliation(s)
- Andreas G Schreyer
- Department of Radiology and Department of Otorhinolaryngology, University Hospital Regensburg, Regensburg, Germany.
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Sun W, Lal P. Recent development on computer aided tissue engineering--a review. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2002; 67:85-103. [PMID: 11809316 DOI: 10.1016/s0169-2607(01)00116-x] [Citation(s) in RCA: 140] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The utilization of computer-aided technologies in tissue engineering has evolved in the development of a new field of computer-aided tissue engineering (CATE). This article reviews recent development and application of enabling computer technology, imaging technology, computer-aided design and computer-aided manufacturing (CAD and CAM), and rapid prototyping (RP) technology in tissue engineering, particularly, in computer-aided tissue anatomical modeling, three-dimensional (3-D) anatomy visualization and 3-D reconstruction, CAD-based anatomical modeling, computer-aided tissue classification, computer-aided tissue implantation and prototype modeling assisted surgical planning and reconstruction.
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Affiliation(s)
- Wei Sun
- Department of Mechanical Engineering and Mechanics, Drexel University, 32nd and Chestnut Street, Philadelphia, PA 19104, USA.
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Dammann F, Bode A, Schwaderer E, Schaich M, Heuschmid M, Maassen MM. Computer-aided surgical planning for implantation of hearing aids based on CT data in a VR environment. Radiographics 2001; 21:183-91. [PMID: 11158653 DOI: 10.1148/radiographics.21.1.g01ja21183] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A study was undertaken to assess the feasibility of a preoperative fitting test for an implantable hearing aid in a virtual reality (VR) environment. High-resolution spiral computed tomography (CT) of the mastoid bone was performed, and the results of a mastoidectomy were simulated with manual segmentation on a standard medical workstation. CT was also performed on a temporal bone specimen obtained at real mastoidectomy, and the bone margins were segmented automatically with threshold-based techniques. A triangulated surface representation of the bone structures including the mastoid cavity was generated. These data as well as the computer-aided design (CAD) files of the medical devices were transferred into a VR environment. The CAD components of the hearing aid were manipulated to simulate the surgical implantation procedure. Merging CAD data of an implantable hearing aid with CT data of the temporal bone in a VR environment was shown to be a feasible method of providing three-dimensional information for the presurgical determination of fit and mountability. Advances in hardware and software are expected to improve the usability of this method. Although clinical studies are needed, these results may serve as an impetus for exploring the use of low-cost, widely available VR computer equipment in a potentially broad field of clinical applications.
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Affiliation(s)
- F Dammann
- Departments of Diagnostic Radiology, University Hospital Tübingen, Hoppe-Seyler-Strasse 3, D-72076 Tübingen, Germany.
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Staudenmaier R, Naumann A, Aigner J, Brüning R. Ear reconstruction supported by a stereolithographic model. Plast Reconstr Surg 2000; 106:511-2. [PMID: 10946959 DOI: 10.1097/00006534-200008000-00056] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
The evolution of rapid prototyping (RP) technology is briefly discussed, and the application of RP technologies to the medical sector is reviewed. Although the use of RP technology has been slow arriving in the medical arena, the potential of the technique is seen to be widespread. Various uses of the technology within surgical planning, prosthesis development and bioengineering are discussed. Some possible drawbacks are noted in some applications, owing to the poor resolution of CT slice data in comparison with that available on RP machines, but overall, the methods are seen to be beneficial in all areas, with one early report suggesting large improvements in measurement and diagnostic accuracy as a result of using RP models.
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Affiliation(s)
- P A Webb
- Regional Medical Physics Department, North Tees General Hospital, Stockton-on-Tees, UK
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Xia J, Ip HH, Samman N, Wang D, Kot CS, Yeung RW, Tideman H. Computer-assisted three-dimensional surgical planning and simulation: 3D virtual osteotomy. Int J Oral Maxillofac Surg 2000. [DOI: 10.1016/s0901-5027(00)80116-2] [Citation(s) in RCA: 187] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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