scholarly journals 3D Printing of a Mandibular Bone Deffect

2017 ◽  
Vol 54 (1) ◽  
pp. 29-31
Author(s):  
Alin Gabor ◽  
Tiberiu Hosszu ◽  
Cristian Zaharia ◽  
Alexandru Kozma ◽  
Andreea Codruta Cojocariu ◽  
...  
Keyword(s):  
3D Printing ◽  
Bone Defect ◽  
Maxillofacial Surgery ◽  
Bone Defects ◽  
Scanning System ◽  
Printing Technology ◽  
Mandibular Bone ◽  
Optical Scanning ◽  
3D Printing Technology ◽  
Polymeric Scaffold

The aim of this study was to achieve a polymeric scaffold, ex-vivo, using 3D printing technology and then subjecting it to various tests to check its optimal property. Initially there was selected a lower jaw with a bone defect that would have prevented any treatment based prosthetic implant. The mandible was first scanned using an optical scanner (MAESTRO DENTAL SCANNER MDS400). The scanning parameters using optical scanning system are: 10 micron accuracy, resolution 0.07 mm, 2 rooms with High-Resolution LED structured light, two axes. The scan time of the mandible was 4-5 min. Later the same mandible was scanned using CBCT�s CRANEX 3DX. The images obtained using CBCT�s were correlated with those obtained by optical scanning. Further on, there was achieved the digital design of the future scaffold with the conventional technique of wax addition directly on the mandibular bone defect. After that, this was again scanned using scanning system MAESTRO DENTAL SCANNER MDS400, and using CBCT�s CRANEX 3DX. The images obtained were correlated with all the scanned images of original mandible bone defects. There were made two polymeric scaffolds using 3D printing system an (D20 Digital Wax System 3D Printer). After printing, scaffold sites were introduced for 30 minutes in an oven curing. Later the pieces obtained were processed to remove small excesses of work. There were obtained 3 blocks of polymers that have a good adaptation to the bone profile. Often, in oral implantology and maxillofacial surgery appear bone defects. They prevent an optimal treatment of bio-functional and aesthetic restoration. Using 3D printing technology one can achieve scaffold sites of different biocompatible materials that have optimal properties to replace bone defect and restore the defective area. These scaffold sites have an intimate adaptation to the defect. 3D printing techniques used to restore bone defects can quickly and efficiently give the possibility to have a successful implantology prosthetics treatment.

scholarly journals Three-Dimensional Technology Applications in Maxillofacial Reconstructive Surgery: Current Surgical Implications

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2523
Author(s):  
Yasmin Ghantous ◽  
Aysar Nashef ◽  
Aladdin Mohanna ◽  
Imad Abu-El-naaj
Keyword(s):  
3D Printing ◽  
Head And Neck ◽  
Donor Site ◽  
Maxillofacial Surgery ◽  
Three Dimensional ◽  
Oral And Maxillofacial Surgery ◽  
3D Technology ◽  
Printing Technology ◽  
Reconstructive Procedures ◽  
3D Printing Technology

Defects in the oral and maxillofacial (OMF) complex may lead to functional and esthetic impairment, aspiration, speech difficulty, and reduced quality of life. Reconstruction of such defects is considered one of the most challenging procedures in head and neck surgery. Transfer of different auto-grafts is still considered as the “gold standard” of regenerative and reconstructive procedures for OMF defects. However, harvesting of these grafts can lead to many complications including donor-site morbidity, extending of surgical time, incomplete healing of the donor site and others. Three-dimensional (3D) printing technology is an innovative technique that allows the fabrication of personalized implants and scaffolds that fit the precise anatomy of an individual’s defect and, therefore, has attracted significant attention during the last few decades, especially among head and neck surgeons. Here we discuss the most relevant applications of the 3D printing technology in the oral and maxillofacial surgery field. We further show different clinical examples of patients who were treated at our institute using the 3D technology and discuss the indications, different technologies, complications, and their clinical outcomes. We demonstrate that 3D technology may provide a powerful tool used for reconstruction of various OMF defects, enabling optimal clinical results in the suitable cases.

scholarly journals 3D PRINTING IN PEDIATRIC ORTHOPEDICS – THE NEW GENERATION OF PREOPERATIVE PLANNING IN THE FIELD OF PEDIATRIC ORTHOPEDICS

2020 ◽  
Vol 7 (3) ◽  
pp. 85-92
Author(s):  
Eduard Liciu ◽  
Maria Miruna Mihai ◽  
Ștefana Carp ◽  
Laura Popa ◽  
Camelia Vreme ◽  
...  
Keyword(s):  
3D Printing ◽  
Maxillofacial Surgery ◽  
3D Models ◽  
Modern Medicine ◽  
Pediatric Orthopedics ◽  
Printing Technology ◽  
Medical Specialties ◽  
3D Printing Technology ◽  
Post Surgery ◽  
New Diagnosis

The evolution of modern medicine, in its continuous developing process, is highly connected with the progress achieved in the medical branch of technology. Regarding the surgical specialties, the technological progress breakthroughs may determine the appearance of new diagnosis techniques, but also shape innovative treatments, leading to superior therapeutic results. In the surgical treatment as a whole, an essential role is played by the Medical Imagistics. They either offer the much-needed visual support in order to reach an accurate diagnosis, or guide the surgeon in choosing a certain type of intervention. The importance of Imagistics is indisputable. It has also been proven so in intraoperatory guidance and monitoring the patient in post-surgery. In the evolution of medical Imagistics, after the transition to digital imaging, followed by graphic 3D reconstructions based on CT and MRI data, we find ourselves contemporary with a new turning point announcing a technological revolution: the transition from virtual 3D models to tangible 3D replica. Since the beginning, the 3D printing technology has been of great importance to the field of medical research and, once the technique gained popularity, it became a modern tool for many medical specialties, in particular for cranio-maxillofacial surgery, orthopedics, oncology, neurosurgery. The 3D printing technology managed to transgress dated barriers by facilitating the manufacturing of implants or implement new treatments in regenerative medicine. The purpose of this original paper is to present our 3D printing work protocol and general conclusions after 5 years of implementing 3D printing in pediatric orthopedics.  

Application of 3D Printing Technology in Bone Tissue Engineering: A Review

2020 ◽  
Vol 17 ◽  
Author(s):  
Yashan Feng ◽  
Shijie Zhu ◽  
Di Mei ◽  
Jiang Li ◽  
Jiaxiang Zhang ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
3D Printing ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Bone Defects ◽  
3D Bioprinting ◽  
Printing Technology ◽  
Bone Defect Repair ◽  
3D Printing Technology ◽  
Defect Repair

: Clinically, the treatment of bone defects remains a significant challenge, as it requires autogenous bone grafts or bone graft substitutes. However, the existing biomaterials often fail to meet the clinical requirements in terms of structural support, bone induction and controllable biodegradability. In the treatment of bone defects, 3D porous scaffolds have at-tracted much attention in the orthopedic field. In terms of appearance and microstructure, complex bone scaffolds created by 3D printing technology are similar to human bone. On this basis, the combination of active substances including cells and growth factors is more conducive to bone tissue reconstruction, which is of great significance for the personalized treatment of bone defects. With the continuous development of 3D printing technology, it has been widely used in bone defect repair as well as diagnosis and rehabilitation, creating an emerging industry with excellent market potential. Meanwhile, the di-verse combination of 3D printing technology with multi-disciplinary fields such as tissue engineering, digital medicine, and materials science has made 3D printing products with good biocompatibility, excellent osteo-inductive capacity and stable mechanical properties. In the clinical application of the repair of bone defects, various biological materials and 3D printing methods have emerged to make patient-specific bioactive scaffolds. The microstructure of 3D printed scaffolds can meet the complex needs of bone defect repair and support the personalized treatment of patients. Some of the new materials and technologies that emerged from the 3D printing industry's advent in the past decade successfully translated into clinical practice. In this article, we first introduced the development and application of different types of materials that were used in 3D bioprinting, including metal, ceramic materials, polymer materials, composite materials, and cell tissue. The combined application of 3D bioprinting and other manufacturing method used for bone tissue engineering are also discussed in this ar-ticle. Finally, we discussed the bottleneck of 3D bioprinting technique and forecasted its research orientation and prospect.

scholarly journals Cast Metal Surgical Guides: An Affordable Adjunct to Oral and Maxillofacial Surgery

2020 ◽  
Vol 5 ◽  
pp. 247275122096026
Author(s):  
Chitra Chakravarthy ◽  
Daisy Aranha ◽  
Santosh Kumar Malyala ◽  
Ravi S Patil
Keyword(s):  
3D Printing ◽  
Maxillofacial Surgery ◽  
Hybrid Approach ◽  
Cost Effective ◽  
Oral And Maxillofacial Surgery ◽  
Operating Table ◽  
Functional Rehabilitation ◽  
Printing Technology ◽  
3D Printing Technology ◽  
Surgical Guides

Additive manufacturing or 3-dimensional (3D) printing technology has an incredulous ability to create complex constructs with high exactitude. Surgical guides printed using this technology allows the transfer of the virtual surgical plan to the operating table, optimizing aesthetic outcomes, and functional rehabilitation. A vast variety of materials are currently being used in medical 3D printing, including metals, ceramics, polymers, and composites. The guides fabricated with titanium have high strength, excellent biocompatibility, and are sterilizable but take time to print and are expensive. We have thus followed a hybrid approach to fabricate an inexpensive surgical guide using metal where the advantage of 3D printing technology has been combined with the routinely followed investment casting procedure to fabricate guides using nickel–chromium, which has all the advantages of a metal and is cost-effective.

scholarly journals Point-of-care manufacturing: a single university hospital’s initial experience

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Jose Antonio Calvo-Haro ◽  
Javier Pascau ◽  
José Manuel Asencio-Pascual ◽  
Felipe Calvo-Manuel ◽  
Maria José Cancho-Gil ◽  
...  
Keyword(s):  
3D Printing ◽  
Point Of Care ◽  
Maxillofacial Surgery ◽  
University Hospital ◽  
Manufacturing Companies ◽  
Printing Technology ◽  
Medical Specialties ◽  
3D Printing Technology ◽  
Surgical Guides ◽  
Custom Made

Abstract Background The integration of 3D printing technology in hospitals is evolving toward production models such as point-of-care manufacturing. This study aims to present the results of the integration of 3D printing technology in a manufacturing university hospital. Methods Observational, descriptive, retrospective, and monocentric study of 907 instances of 3D printing from November 2015 to March 2020. Variables such as product type, utility, time, or manufacturing materials were analyzed. Results Orthopedic Surgery and Traumatology, Oral and Maxillofacial Surgery, and Gynecology and Obstetrics are the medical specialties that have manufactured the largest number of processes. Working and printing time, as well as the amount of printing material, is different for different types of products and input data. The most common printing material was polylactic acid, although biocompatible resin was introduced to produce surgical guides. In addition, the hospital has worked on the co-design of custom-made implants with manufacturing companies and has also participated in tissue bio-printing projects. Conclusions The integration of 3D printing in a university hospital allows identifying the conceptual evolution to “point-of-care manufacturing.”

Novel exploration of 3D printed wrist arthroplasty to solve the severe and complicated bone defect of wrist

2017 ◽  
Vol 23 (3) ◽  
pp. 465-473 ◽  
Author(s):  
Qing Han ◽  
Yanguo Qin ◽  
Yun Zou ◽  
Chenyu Wang ◽  
Haotian Bai ◽  
...  
Keyword(s):  
3D Printing ◽  
Three Dimensional ◽  
Surgical Techniques ◽  
Bone Defects ◽  
Printing Technology ◽  
Content Type ◽  
3D Printing Technology ◽  
3D Printed ◽  
And Function ◽  
Wrist Arthroplasty

Purpose Although proximal row carpectomy, wrist arthrodesis and even total wrist arthroplasty were developed to treat wrist disease using bone and cartilage of the wrist, severe and complicated bone defects caused by ferocious trauma and bone tumors remain a stubborn problem for surgeons. Development and application of the three-dimensional (3D) printing technology may provide possible solutions. Design/methodology/approach Computed tomography (CT) data of three cases with severe bone defects caused by either trauma or bone tumor were collected and converted into three-dimensional models. Prostheses were designed individually according to the residual anatomical structure of the wrist based on the models. Both the models and prostheses were produced using 3D printing technology. A preoperative design was prepared according to the models and prostheses. Then arthroplasty was performed after preoperative simulation with printed models and prostheses. Findings The diameter of the stem and radial medullary cavity, the direction and location of the prosthesis, and other components were checked during the preoperative design and simulation process phases. The three cases with 3D printed wrist all regained reconstruction of normal anatomy and part of the function after surgery. The average increasing Cooney score rate of Cases 2 and 3 was 133.34 ± 23.57 per cent, and that of Case 1 reached 85 per cent. The average declining rate of the Gartland and Werley Score in Cases 2 and 3 was 65.21 ± 18.89 per cent, and that of Case 1 dropped to 5 per cent in the last follow-up. The scores indicated that patients experienced pain relief and function regain. In addition, the degree of patient satisfaction improved. Originality/value 3D printed wrist arthroplasty may provide an effective method for severe and complicated cases without sacrificing other bones. Personal customization can offer better anatomy and function than arthrodesis or other traditional surgical techniques.

scholarly journals Individualized 3D printing-assisted repair and reconstruction of neoplastic bone defects at irregular bone sites: exploration and practice in the treatment of scapular aneurysmal bone cysts

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Guochen Luo ◽  
Yao Zhang ◽  
Xiahua Wang ◽  
Shuaishuai Chen ◽  
Dongyi Li ◽  
...  
Keyword(s):  
3D Printing ◽  
Surgical Approach ◽  
Bone Structure ◽  
Operation Time ◽  
Bone Defects ◽  
Anatomical Structure ◽  
Printing Technology ◽  
3D Printing Technology ◽  
Medical Software

Abstract Background The irregular anatomical shape and complex structures of irregular bones make it more difficult to repair and reconstruct bone defects in irregular bones than in the long bones of the extremities. Three-dimensional (3D) printing technology can help to overcome the technical limitations of irregular bone repair by generating simulations that enable structural integration of the lesion area and bone structure of the donor site in all directions and at multiple angles. Thus, personalized and accurate treatment plans for restoring anatomical structure, muscle attachment points, and maximal function can be made. The present study aimed to investigate the ability of 3D printing technology to assist in the repair and reconstruction of scapular aneurysmal ABC defects. Methods The study included seven patients with ABCs of the scapula. Based on computed tomography (CT) data for the patient, the scapula (including the defect) and pelvis were reconstructed using Mimics Medical software. The reconstructed scapula model was printed using a 3D printer. Before the operation, the model was used to design the surgical approach and simulate the operation process, to determine the length and radius of the plate and the number and direction of screws, and to determine the bone mass of the ilium and develop reasonable strategies for segmentation and distribution. The operation time, amount of bleeding, length and radius of the plate, and direction and number of screws were recorded. Results The average duration of follow-up was 25.6 months, and none of the seven patients experienced recurrence during the follow-up period. The surgical approach, the length and radius of internal fixation, and the number and direction of screws were consistent with the designed operation plan. Patients gradually recovered the anatomical structure of the scapula and function of the shoulder joint. Conclusions In the treatment of bone defects caused by irregular bone tumors, 3D printing technology combined with surgery has the advantages of less trauma, short operation time, less bleeding and reducing the difficulty of operation, which can reduce the waste of bone graft, and more complete reconstruction of the anatomical structure of the defective bone.

scholarly journals Systemically replicated organic and inorganic bony microenvironment for new bone formation generated by a 3D printing technology

RSC Advances ◽  
2016 ◽  
Vol 6 (14) ◽  
pp. 11546-11553 ◽  
Author(s):  
Wan-Gun La ◽  
Jinah Jang ◽  
Byoung Soo Kim ◽  
Min Suk Lee ◽  
Dong-Woo Cho ◽  
...  
Keyword(s):  
3D Printing ◽  
Bone Formation ◽  
Bone Defect ◽  
New Bone Formation ◽  
Printing Technology ◽  
3D Printing Technology ◽  
Defect Healing ◽  
Bone Defect Healing ◽  
3D Printed

3D-printed bioimplants for enhanced bone defect healing using decellularized and demineralized ECM coating.

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