Virtual bending of mandibular reconstruction plates using a computer-aided design
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
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.
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:uu:diva-110334DOI: 10.1016/j.joms.2009.03.039ISI: 000268776800010PubMedID: 19615575OAI: oai:DiVA.org:uu-110334DiVA: diva2:276184