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Development of New Orthognathic Model Surgery Technique Based on the Reference Points onto the Teeth and the Use of Occlusal Index  

Lee, Seung-Hoon (Leader's Dental Clinic)
Oh, Seong-Seob (21st Century Dental Clinic)
Yi, Choong-Kook (Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University)
Park, Kyung-Ran (Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University)
Lee, Sang-Hwy (Department of Oral and Maxillofacial Surgery and Applied Life Science, Oral Science Research Center, Oral Cancer Research Institute, Brain Korea 21 Project, College of Dentistry, Yonsei University)
Publication Information
Maxillofacial Plastic and Reconstructive Surgery / v.33, no.2, 2011 , pp. 128-136 More about this Journal
Abstract
Purpose: Errors in orthognathic model surgery occur during the planning, measuring and/or moving of the models. However, there has been little effort to find ways to reduce these errors. In this study, we introduce a new orthognathic model surgery technique (Yonsei method) which adopts the tooth point as the reference and the occlusal index as a moving vehicle for the model. Methods: The technique consists mainly of: 1) measuring the three-dimensional lengths of model points, 2) fabricating and moving the occlusal index and 3) verifying the movement. Then we compared the accuracy of the Yonsei method to conventional methods, with special reference made to influencing factors. Results: Errors for the Yonsei method with the occlusal index were reduced to the range of 0.61~1.04 mm in three-dimension, providing a more accurate model surgery technique than conventional methods which have errors ranging from 0.77~3.11 mm. Conclusion: It provided us a more accurate model surgery technique based on the reference points onto the teeth and the use of occlusal index.
Keywords
Model surgery; Errors; Occlusal index; Tooth point reference; Orthognathic surgery;
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1 Kim BC, Lee CE, Park W, et al. Clinical experiences of digital model surgery and the rapid-prototyped wafer for maxillary orthognathic surgery. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2011;111:278-85.   DOI   ScienceOn
2 Erickson KM, Bell WH, Goldsmith DH. Analytical model surgery. In: Bell WH, editor. Modern practice in orthognathic and reconstructive surgery. Philadelphia: WB Saunders co.; 1992. p. 154-216.
3 Pretta FM, Caruso WA. The use of acrylic spacers in orthognthic model surgery. J Oral Maxillofac Surg 1983;41: 473-5.   DOI   ScienceOn
4 Lee SH, Lee SH, Ju HH, Won DH. The accuracy of measurements measurements during model surgery for orthognathic planning. J Korean Oral Maxillofac Surg 2001;27:37-45.
5 Ellis E III. Accuracy of face-bow transfer. J Oral Maxillofac Surg 1992;50:562-7.   DOI   ScienceOn
6 Nattestad A, Vedtoft P. Pitfalls in orthognathic model surgery. Int J Oral Maxillofac Surg 1994;23:11-5.   DOI   ScienceOn
7 Cottrell DA, Wolford LM. Altered orthognathic surgical sequencing and a modified approach to model surgery. J Oral Maxillofac 1994;52:1010-20; discussion 1020-1.   DOI   ScienceOn
8 Epker BN, Fish LC. Definitive immediate presurgical planning. In: Epker BN, Fish LC, editors. Dentofacial deformities. St. Louis: CV Mosby co.; 1986. p. 128-46.
9 Ellis E III. Accuracy of model surgery. J Oral Maxillofac Surg 1990;48:1161-7.   DOI   ScienceOn
10 Buckley MJ, Tucker MR, Fredette SA. An alternative approach for staging simultaneous maxillary and mandibular osteotomies. Int J Adult Orthodon Orthognath Surg 1987;2: 75-8.
11 Fuhrmann RA, Frohberg U, Diedrich PR. Treatment prediction with three-dimensional computer tomographic skull models. Am J Orthod Dentofac Orthop 1994;106:156-60.   DOI   ScienceOn
12 Stanchina R, Ellis E 3rd, Gallo WJ, Fonseca RJ. A comparison of two measures for repositioning the maxilla during orthognathic surgery. Int J Adult Orhto Orthognath Surg 1988;3:149-54.
13 Bell WH. Correction of the short-face syndrome-vertical maxillary deficiency: a preliminary report. J Oral Surg 1977; 35:110-20.
14 Bell WH, Creekmore TD, Alexander RG. Surgical correction of the long face syndrome. Am J Orthod 1977;71:40-67.
15 Omura T, Glickman RS, Super S. Method to verify the accuracy of model surgery and prediction tracing. Int J Adult Orthod Orthognath Surg 1996;11:265-70.
16 Nattestad A, Vedtofte P, Mosekilde E. The significance of an erroneous recording of the centre of mandibular rotation in orthognathic surgery. J Craniomax Fac Surg 1991;19:254-9.   DOI
17 Schwestka R, Engelke D, Zimmer B, Kubein-Meesenburg D. Positioning control of the upper incisors in orthognathic surgery. Pre-operative planning with the Model Positioning Device and intra-operative application of the Sandwich Splint. Eur J Orthod 1991;13:367-71.   DOI   ScienceOn
18 Anwar M, Harris M. Model surgery for orthognathic planning. Br J Oral Maxillofac Surg 1990;28:393-7.   DOI   ScienceOn
19 Ellis E 3rd, Gallo WJ. A method to accurately predict the position of the maxillary incisor in two-jaw surgery. J Oral Maxillofac Surg 1984;42:402-4.   DOI
20 Dahlberg G. Stastical methods for medical and biological students. Newyork. Interscience publication, 1940, cited from Sandler PJ: Reproducibility of cephalometric measurements. Br J Orthod 1988;15:105-10.   DOI