Maysa Nogueira de Barros Melo 1 , Ítalo Miranda do Vale Pereira 1 , Alexander Tadeu Sverzut 2 , Cássio Edvard Sverzut 1 , Alexandre Elias Trivellato 1,3 Show Affiliations »
Abstract
Purpose: The goal was to perform an orthognathic surgery laboratorial study to evaluate the reproducibility of the resulting movements from virtual surgical planning (VSP), by comparing the measurements obtained from VSP to those obtained from Erickson's platform using the 3D printed surgical guide. Methods: Eight patients who had undergone orthognathic surgery were screened and grouped according to maxillary movement and the patient's dentofacial deformity. Three-D virtual surgery simulations were performed, and surgical guides were obtained using Dolphin Imaging 11.9® software. In a semi-adjustable articulator (SAA), the maxilla model was separated from the SAA mounting platform, and the surgical guide was used to reassemble it. Then, the maxilla model was fixed and transferred to Erickson's platform to verify the planned movement. The data were submitted for statistical analysis. Results: The agreement between the methods was excellent, regardless of direction, landmark analyzed, or the amount of movement. The most considerable variation was 0.42 mm in the movement amplitude of 6 mm, and the highest mean was 0.07 mm in the region of the superior right first molar (16). Conclusion: Therefore, regardless the movement of the maxilla, no statistically significant difference was observed between the measurements obtained through VSP and Erickson's platform, demonstrating that both methods are equally accurate and reliable. © The Association of Oral and Maxillofacial Surgeons of India 2022.
Purpose: The goal was to perform an orthognathic surgery laboratorial study to evaluate the reproducibility of the resulting movements from virtual surgical planning (VSP), by comparing the measurements obtained from VSP to those obtained from Erickson's platform using the 3D printed surgical guide. Methods: Eight patients who had undergone orthognathic surgery were screened and grouped according to maxillary movement and the patient's dentofacial deformity. Three-D virtual surgery simulations were performed, and surgical guides were obtained using Dolphin Imaging 11.9® software. In a semi-adjustable articulator (SAA), the maxilla model was separated from the SAA mounting platform, and the surgical guide was used to reassemble it. Then, the maxilla model was fixed and transferred to Erickson's platform to verify the planned movement. The data were submitted for statistical analysis. Results: The agreement between the methods was excellent, regardless of direction, landmark analyzed, or the amount of movement. The most considerable variation was 0.42 mm in the movement amplitude of 6 mm, and the highest mean was 0.07 mm in the region of the superior right first molar (16). Conclusion: Therefore, regardless the movement of the maxilla, no statistically significant difference was observed between the measurements obtained through VSP and Erickson's platform, demonstrating that both methods are equally accurate and reliable. © The Association of Oral and Maxillofacial Surgeons of India 2022.
Entities: Chemical
Keywords:
Accuracy; Conventional planning; Orthognathic surgery; Surgical guide; Virtual planning
Year: 2022
PMID： 35712388 PMCID： PMC9192866 DOI： 10.1007/s12663-022-01687-5
Source DB: PubMed Journal: J Maxillofac Oral Surg ISSN： 0972-8270