Abstract
This study investigated the feasibility of a parametric mandible reconstruction plate in order to reduce surgical lead time, improve fit, and reduce residual stresses. The parametric plates were generated on the basis of simulated cephalometric measurements. A finite element analysis and a reconstruction plate/mandible fit test were performed on several combinations to determine whether the parametric plate provided a suitable alternative to conventional reconstruction plates in terms of fit and structural performance. The results indicated that the parametric plate is structurally superior to a conventional plate. The comparison test indicated that the parametric plate provides a reasonable approximation of mandible geometry.
Highlights
The mandible is the largest and strongest bone in the facial skeleton
This study investigated the feasibility of a parametric mandible reconstruction plate in order to reduce surgical lead time, improve fit, and reduce residual stresses
This study proposed a parametric reconstruction plate design that has the potential to reduce the effort associated with the pre-planning and intra-operative bending involved with conventional mandible reconstruction plates
Summary
The mandible is the largest and strongest bone in the facial skeleton. It frames the lower portion of the face, and is an integral component in breathing, speaking, chewing, and swallowing [1]. Severe trauma to the mandible can result in the resection of the damaged region, which is commonly treated using mandible reconstruction plates. These plates are straight bars of titanium, with appropriately spaced holes, that are used to anchor the plate to the skeleton by way of locking screws. Weakening of the material and micro-tears at the bending site often result in plate failure [4]
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