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Virtual bending of mandibular reconstruction plates using a computer-aided design
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Oral and Maxillofacial Surgery.
2009 (English)In: Journal of oral and maxillofacial surgery (Print), ISSN 0278-2391, E-ISSN 1531-5053, Vol. 67, no 8, 1640-1643 p.Article in journal (Refereed) Published
Abstract [en]

PURPOSE: The purpose of this study was to investigate the possibility of virtually designing and manufacturing a template for reconstruction plate bending, to be used during treatment of congenital or acquired bony entities. The outcome was compared with plates bent by the freehand approach in a stereolithographic skull model. MATERIALS AND METHODS: From a computed tomography examination, a polygon skull was created and the corresponding stereolithographic model retrieved. A polygon mesh of a Compact UniLock 2.4-mm plate was obtained from Synthes (Bettlach, Switzerland). The polygon plate was bent virtually around the mandible and rendered in all 3 dimensions, and a template was created. Five 10-hole plates were bent using this template, and five 10-hole plates were bent using a stereolithographic model as the template. The 2 groups were compared using the Wilcoxon signed rank test. P values less than .001 was considered to be statistically significant. RESULTS: No statistical difference was seen between the 2 methods. The median discrepancy between the 2 groups was 0.1 mm. CONCLUSION: Within the constraints of this investigation, by use of a virtually produced template based on a virtually planned reconstruction, it is possible to bend a reconstruction plate with the same degree of accuracy as that of the traditional freehand approach.

Place, publisher, year, edition, pages
2009. Vol. 67, no 8, 1640-1643 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-110334DOI: 10.1016/j.joms.2009.03.039ISI: 000268776800010PubMedID: 19615575OAI: oai:DiVA.org:uu-110334DiVA: diva2:276184
Available from: 2009-11-11 Created: 2009-11-11 Last updated: 2017-12-12Bibliographically approved

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Hirsch, Jan-Michael

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Department of Surgical SciencesCentre for Clinical Research, County of VästmanlandOral and Maxillofacial Surgery
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