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Article Abstract
Objectives: This case series aims to describe the virtual surgical planning process and report the surgical outcomes of in-house-designed patientspecific implants (PSIs) combined with navigation systems in orthognathic surgery.
Patients And Methods: Three patients undergoing two-jaw surgery were assessed across pre-surgical planning, surgical execution, and post-surgical evaluation phases. The accuracy was evaluated between the surgical plan (T0) and immediate post-operative three-dimensional (3D) radiographic image (T1) using 2 methods: bone surface comparison and dental landmark comparison. The stability was assessed between T1 and 3D radiographic image at 9 months after surgery (T2) by Bone surface comparison method.
Results: The accuracy assessed by Bone surface comparison shows that green areas (deviation between 0.0-0.4 mm) were mostly observed in the anterior region of the Le Fort I segment. The average deviations of dental landmark comparison are as follows: in the left-right direction, 0.28±0.41 to the right; in the anterior-posterior direction, 0.13±0.48 to the posterior; and in the superior-inferior direction, 0.37±0.39 to the inferior. The stability assessed by bone surface comparison shows the green area in two of three patients, indicating minimal post-surgical changes.
Conclusion: The in-house-designed PSIs combined with navigation systems can achieve accuracy and stability in orthognathic surgery.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12405771 | PMC |
| http://dx.doi.org/10.5125/jkaoms.2025.51.4.237 | DOI Listing |
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