ArticleJournal of the Korean Association of Oral and Maxillofacial Surgeons2025
The in-house designed patient-specific implants combined with navigation systems in orthognathic surgery: a case series of three patients.
Article in Journal of the Korean Association of Oral and Maxillofacial Surgeons, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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Corrections and comments
- Erratum issued
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2 authors.
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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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