Virtual Surgical Planning and 3D Printing in Veterinary Dentistry and Oromaxillofacial Surgery

2022 ◽  
Vol 52 (1) ◽  
pp. 221-234
Author(s):  
Graham P. Thatcher ◽  
Jason W. Soukup
2021 ◽  
Vol 9 (7) ◽  
pp. 614-614
Author(s):  
Doga Kuruoglu ◽  
Maria Yan ◽  
Samyd S. Bustos ◽  
Jonathan M. Morris ◽  
Amy E. Alexander ◽  
...  

2021 ◽  
Vol 11 ◽  
Author(s):  
Yang Wang ◽  
Xingzhou Qu ◽  
Junjian Jiang ◽  
Jian Sun ◽  
Chenping Zhang ◽  
...  

BackgroundReconstruction of maxillary defect resulting from trauma or oncology surgery is of great importance for patients with physical and psychological complications. The virtual surgical planning (VSP) and 3D printing technics had been used in recent years which simplified the surgical procedure and promoted success and accuracy. To assess the accuracy and outcome of VSP surgery, here we report our experience in maxillary reconstruction retrospectively.MethodPatients who received maxillary defect reconstruction from 2013 to 2020 were analyzed retrospectively. These patients were divided into two groups. Group 1 received VSP and 3D printed guiding plates in the surgery, while group 2 underwent free-hand surgery (FHS). Patients with different vertical and horizontal defects were classified according to Brown and Shaw classification. Clinical information and postoperative complications of all patients were collected. For patients with unilateral maxillary defect, orbit volume, orbit height, and the contour of the reconstructed side were compared with the normal side.ResultThirty-four patients who achieved the criteria were analyzed, of which 20 patients underwent VSP surgery. There were primary and secondary reconstruction cases in both two groups. Vascularized iliac crest flap was used in three cases, and fibula flap was performed in the other cases. One flap collapse occurred in FHS group. Seven patients in VSP group received dental implants, while the number in FHS group was 0. In vertical class III cases, the differences in orbit height (ΔD) and orbit volume (ΔV) between normal side and reconstructed side were measured and compared in the two groups. The mean ΔD is 1.78 ± 1.33 mm in VSP group and 4.25 ± 0.95 mm in FHS group, while the mean ΔV is 2.04 ± 0.85 cm3 in VSP group and 3.25 ± 0.17 cm3 in FHS group. The alterations of orbit height and volume in VSP group were much smaller than that in FHS group with statistical significance. From the perspective of aesthetics, the color-gradient map indicates a more symmetric and smoother curve of post-operation appearance in VSP group.ConclusionCompared with traditional free-hand surgical technics, VSP and 3D printing guiding plates can allow for a more accurate maxillary reconstruction with improved aesthetics.


2020 ◽  
Vol 4 (s1) ◽  
pp. 105-106
Author(s):  
Marissa Suchyta ◽  
Christopher Hunt ◽  
Waleed Gibreel ◽  
Diya Sabbagh ◽  
Kryzysztof Gorny ◽  
...  

OBJECTIVES/GOALS: Virtual surgical planning and 3D printing enable streamlined surgeries and increased complexity. These technologies, however, require CT scans and radiation exposure. This project’s goal is to optimize and demonstrate the accuracy of Black Bone MRI for surgical planning in reconstructive surgery. METHODS/STUDY POPULATION: Four common craniofacial surgeries were planned and performed on cadaver specimens (maxillary advancement, orbital floor reconstruction with patient-specific implants, cranial vault reconstruction, and fibular free flap reconstruction of the mandible). For each surgical procedure, ten cadaver heads were used. Five of each surgery were planned and 3D printed guides were created utilizing Black Bone MRI versus five with CT scans. Following mock surgeries, all specimens underwent a post-operative CT scan. 3d reconstruction was performed and surgical accuracy compared to the plan was assessed using GeoMagic Wrap, assessing average post-operative deviation from plan. RESULTS/ANTICIPATED RESULTS: In all surgeries, guides created from Black Bone MRI demonstrated high accuracy to surgical plan. Average osteotomy (cut) deviation from plan was not statistically significantly different when Black Bone MRI was used compared to CT scans for planning and guide creation in the wide variety of craniofacial surgeries performed. The average deviation of post-operative anatomy from pre-operative plan was also not statistically significant when Black Bone MRI versus CT scans were utilized in the surgeries. These results then enabled the translational application of this technology clinically, and we demonstrate a clinical reconstructive craniofacial case planned utilizing Black Bone MRI. DISCUSSION/SIGNIFICANCE OF IMPACT: This study demonstrates that virtual surgical planning and 3d surgical guide creation can be performed using Black Bone MRI with comparable accuracy to CT scans in a wide variety of craniofacial procedures. This could dramatically reduce radiation exposure for patients. The successful segmentation, virtual planning, and 3d printing of accurate guides from Black Bone MRI demonstrate potential to change the pre-operative planning standard of care. This project, overall, also demonstrates the development of new solutions to advance clinical care, thus serving as an example of moving translational science from a concept to the operating room.


2016 ◽  
Vol Volume 9 ◽  
pp. 341-345 ◽  
Author(s):  
Yu-Hui Huang ◽  
Rosemary Seelaus ◽  
Linping Zhao ◽  
Pravin K Patel ◽  
Mimis Cohen

2021 ◽  
Vol 6 ◽  
pp. 247275122199297
Author(s):  
Nicholas Callahan ◽  
Sarah L. Moles ◽  
Michael R. Markiewicz

Immediate obturation of the patient undergoing maxillectomy who is not undergoing formal autologous reconstruction is important for immediate form and function of the patient. Exophytic tumors, that are large in dimension can make pre-operative obturator formation challenging. Traditional methods of obturator fabrication involve a physical or digital impression. Preoperative virtual surgical planning for tumor resection and reconstruction using free tissue transfer has become a mainstay in head and neck reconstruction. We describe a variation of this for a patient unable to undergo free tissue transfer where the authors used preoperative virtual surgical planning and CAD/CAM technologies to perform tumor resection, and fabricated an obturator based on the CT imaging alone.


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