Maxillofacial Plastic and Reconstructive Surgery

Korean Association of Maxillofacial Plastic and Reconstructive Surgeons (대한악안면성형재건외과학회)
권호 표지

SURGICAL STENT FABRICATION AND CLINICAL APPLICATION FOR ORTHOGNATHIC SURGERY USING Cone-Beam CT

Cone-Beam CT를 이용한 악교정 수술용 스텐트 제작과 임상 적용

  • Kim, Yong-Il (Department of Orthodontics, College of Dentistry, Pusan National University) ;
  • Kim, Jong-Ryoul (Department of Oral & Maxillofacial Surgery College of Dentistry, Pusan National University) ;
  • Kim, Seong-Sik (Department of Orthodontics, College of Dentistry, Pusan National University) ;
  • Son, Woo-Sung (Department of Orthodontics, College of Dentistry, Pusan National University) ;
  • Park, Soo-Byung (Department of Orthodontics, College of Dentistry, Pusan National University)
  • Published : 2009.03.31
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Abstract

The application of CT with basis on 3 dimensional-reconstruction is getting more widely practiced. With the data obtained from cone-beam computed tomography(CBCT), not only the diagnosis of the patient with skeletal abnormality but also the virtual simulation of the orthognathic surgery were performed and its application would be popular in orthodontic field. We reported a case, a 19-year old man who was diagnosed mandibular prognathism and required orthognatic surgery. In this case, the virtual orthognathic surgery was simulated and surgical wafer was fabricated by using CBCT data. That wafer was applied the actual orthognathic surgery. After preoperative orthodontic treatment, we prepared surgery as follows. : (l)Acquisition of 3D image data, (2)Reconstruction of 3-dimensional virtual model, (3)Virtual model surgery, (4)Extraction of stere-olithographic image, (5)Check-up for occlusal interference, (6)Fabrication of surgical stent by stereolithography. Bilateral sagittal split ramus osteotomy was operated and used stereolithographic surgical stent. 1 month later, we superimposed CBCT datas of virtual surgery and that of actual surgery, and then compared the result. CT data's application for othognathic surgery yielded satisfactory outcomes.

Keywords

References

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