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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/15114

Title: Three-Dimensional Virtual Model Surgery to Fabricate the Digital Intermediate Splint
Authors: Sun, Yi
Luebbers, Heinz-Theo
Politis, Constantinus
Issue Date: 2013
Citation: JOURNAL OF CRANIOFACIAL SURGERY, 24 (2), p. 563-565
Abstract: Model surgery is the classical requirement for fabricating an intermediate splint for bimaxillary surgery. However, several sources of error complicate the conventional manual technique for making an intermediate splint, and it can be difficult to reposition the cast model of the upper jaw in the desired position. Additionally, the manual procedure is time consuming and requires a lot of laboratory work. Here, we present a technical note on virtual model surgery, a computer-assisted method that combines 3-dimensional cone beam computed tomography (CBCT) of the articulator and an optical scan of the plaster cast models. A registration block is designed to match the detailed occlusal surface scan to the CBCT data. A paired-point-based registration algorithm is utilized to calculate the registration metric and to transfer the scanned plaster cast model of the upper jaw to the desired position. The detailed protocol is described, and one clinical case is presented.
Notes: [Sun, Yi; Politis, Constantinus] St Johns Hosp, Dept Oral & Maxillofacial Surg, B-3600 Genk, Belgium. [Sun, Yi; Politis, Constantinus] Hasselt Univ, Fac Med, Diepenbeek, Belgium. [Luebbers, Heinz-Theo] Univ Zurich Hosp, Clin Craniomaxillofacial Surg, CH-8091 Zurich, Switzerland.
URI: http://hdl.handle.net/1942/15114
DOI: 10.1097/SCS.0b013e3182700e4f
ISI #: 000316676300103
ISSN: 1049-2275
Category: A1
Type: Journal Contribution
Validation: ecoom, 2014
Appears in Collections: Research publications

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