A virtual deformable mandible model used for reconstruction computer aided design of large mandibular defects / 中华口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To establish a three- dimensional virtual deformable mandible model used for individual reconstruction design of large mandibular defect.</p><p><b>METHODS</b>A virtual deformable mandible model has been established by a 3D animation software. The model could be used for preoperative reconstruction design of large mandibular defects cases. According to the temporomandibular joint fossa position, maxillary dental arch, the normal relationship of cranio-maxillofacial profile, and the morphology of the residual segments of mandible, the virtual mandible model could be scaled and adjusted and a virtual mandible with individual features was obtained. Three normal skulls have been used to validate the adjustment ability of the virtual deformable mandible model. The preoperative reconstruction design process of 1 typical large mandibular defect case was demonstrated.</p><p><b>RESULTS</b>The deformation matching ability of the virtual deformable mandible model was very good. The registration between the design model and the original mandible was over 90%. The design effect of the large mandiblar defect case was satisfied.</p><p><b>CONCLUSIONS</b>Virtual deformable mandible model is a new feasible method to aid preoperative reconstruction design of large mandibular defects.</p>