Computer-assisted preoperative simulation for positioning and fixation of plate in 2-stage procedure combining maxillary advancement by distraction technique and mandibular setback surgery

Suenaga, Hideyuki; Taniguchi, Asako; Yonenaga, Kazumichi; Hoshi, Kazuto; Takato, Tsuyoshi

doi:10.1016/j.ijscr.2016.10.004

Cited by 5 publications

(4 citation statements)

References 12 publications

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“…Three-dimensional reconstruction can address these problems and provide accurate and detailed 3D details for diagnosis and treatment planning. 23,24 During surgery, we often use techniques such as these to increase maxillary retention and promote bone healing: (1) repair the maxillary defect by transplanting autologous bone to reduce the noncontact range of bone. (2) Use a rigid internal fixation device on both sides of the maxillary fracture.…”

Section: Discussionmentioning

confidence: 99%

“…Recent progress in OGS has led to an increased demand for more advanced diagnostic image information than is possible with conventional radiography. Three-dimensional reconstruction can address these problems and provide accurate and detailed 3D details for diagnosis and treatment planning 23,24. During surgery, we often use techniques such as these to increase maxillary retention and promote bone healing: (1) repair the maxillary defect by transplanting autologous bone to reduce the noncontact range of bone.…”

Section: Discussionmentioning

confidence: 99%

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Surgical Precision Analysis of Orthognathic Surgery Combined With Invisible Orthodontic

Yeweng

2023

Journal of Craniofacial Surgery

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Surgical Precision Analysis of Orthognathic Surgery Combined With Invisible Orthodontic

Yeweng

2023

Journal of Craniofacial Surgery

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“…Remarkable advances made in recent times in the field of three-dimensional (3D) engineering have benefitted the development of 3D virtual surgery planning on a personal computer (PC). In recent years, 3D simulations using multidetector-row computed tomography (MDCT) and/or limited cone-beam computed tomography (CBCT) have been performed in many facilities for orthognathic surgery [2]. Around the same time, 3D printing technology became familiar, and it became easy to perform simulated surgery using 3D models that reproduced the patient-specific morphology of the jaws.…”

Section: Introductionmentioning

confidence: 99%

Utilization of desktop 3D printer-fabricated “Cost-Effective” 3D models in orthognathic surgery

Narita

Takaki

Shibahara

et al. 2020

Maxillofac Plast Reconstr Surg

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Background: In daily practice, three-dimensional patient-specific jawbone models (3D models) are a useful tool in surgical planning and simulation, resident training, patient education, and communication between the physicians in charge. The progressive improvements of the hardware and software have made it easy to obtain 3D models. Recently, in the field of oral and maxillofacial surgery, there are many reports on the benefits of 3D models. We introduced a desktop 3D printer in our department, and after a prolonged struggle, we successfully constructed an environment for the "in-house" fabrication of the previously outsourced 3D models that were initially outsourced. Through various efforts, it is now possible to supply inexpensive 3D models stably, and thus ensure safety and precision in surgeries. We report the cases in which inexpensive 3D models were used for orthodontic surgical simulation and discuss the surgical outcomes. Review: We explained the specific CT scanning considerations for 3D printing, 3D printing failures, and how to deal with them. We also used 3D models fabricated in our system to determine the contribution to the surgery. Based on the surgical outcomes of the two operators, we compared the operating time and the amount of bleeding for 25 patients who underwent surgery using a 3D model in preoperative simulations and 20 patients without using a 3D model. There was a statistically significant difference in the operating time between the two groups. Conclusions: In this article, we present, with surgical examples, our in-house practice of 3D simulation at low costs, the reality of 3D model fabrication, problems to be resolved, and some future prospects.

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“…In contrast to the maxilla, the mandible has an anatomical structure that is relatively simple, and various reports have described the use of templates to guide the osteotomy and bone reconstruction . Currently, maxillary osteotomy templates are used for the orthognathic LeFort‐I osteotomy and implant plate surgery . However, the current literature is sparse for maxillary tumour resection using osteotomy templates.…”

Section: Introductionmentioning

confidence: 99%

Digital planning workflow for partial maxillectomy using an osteotomy template and immediate rehabilitation of maxillary Brown II defects with prosthesis

Wang

Yang

Gan

et al. 2019

J of Oral Rehabilitation

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Background There is increasing evidence of benefits for the rehabilitation of Brown II defects with prosthesis in surgery. However, the current literature is sparse for maxillary tumour resection using osteotomy templates. Objectives To assess the accuracy of maxillectomy using a custom fabricated osteotomy template and to evaluate the prosthesis for surgical accuracy, appearance and functioning (speech, swallowing and occlusal force). Methods Ten patients with Brown II defects caused by tumour resection were treated with precise partial maxillectomy using an osteotomy template. The immediate rehabilitation of the Brown II defect was completed with a prefabricated prosthesis. The post‐operative three‐dimensional images and the pre‐operative virtual images were superimposed, and average deviation and maximum deviation were calculated. Speech intelligibility, swallowing, appearance and University of Washington Quality of Life Questionnaire (UW‐QoL) were examined at 1, 3 and 6 months after surgery. Occlusal force was examined post‐operatively at 6 months. Results The maximum deviation between the actual and virtual surgery was 5.12 ± 0.44 mm, with an average of 1.02 ± 0.17 mm. Speech intelligibility, swallowing and UW‐QoL improved significantly (P < .05) after wearing the prosthesis. The recovery index of the occlusal force on the affected side was 20.19%‐32.28%. The skewed degree of the mouth corner, the difference in the height of the left and right lips, the maximum deviation distance and the change area volume decreased significantly (P < .05). Conclusion The precise rehabilitation of maxillary Brown II defects can be achieved using a prosthesis fabricated with an osteotomy template. The prosthesis restored appearance and functional capabilities (such as speech and occlusal force).

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Computer-assisted preoperative simulation for positioning and fixation of plate in 2-stage procedure combining maxillary advancement by distraction technique and mandibular setback surgery

Cited by 5 publications

References 12 publications

Surgical Precision Analysis of Orthognathic Surgery Combined With Invisible Orthodontic

Surgical Precision Analysis of Orthognathic Surgery Combined With Invisible Orthodontic

Utilization of desktop 3D printer-fabricated “Cost-Effective” 3D models in orthognathic surgery

Digital planning workflow for partial maxillectomy using an osteotomy template and immediate rehabilitation of maxillary Brown II defects with prosthesis

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