Edentulous mandible (cortical & cancellous bone) STEP/IGES/STL model for FEA

[jakubkaczmarek0214]

Hello everyone,

I am currently conducting a biomechanical Finite Element Analysis (FEA) in ANSYS, focusing on stress distribution around dental implants.

I am looking for an accurate 3D CAD model of an edentulous mandible (preferably atrophic). Crucially, I need the model to be separated into two distinct solid bodies: cortical bone and cancellous (trabecular) bone, so I can assign different material properties to them (e.g., Young's modulus).

Does anyone have a segmented model in a solid format (.STEP, .IGES, or SolidWorks/Parasolid) they would be willing to share for academic/research purposes? Most models available online are .STL meshes that are extremely difficult to work with in ANSYS for boolean operations (like inserting the implant screw).

Any help, links, or advice on converting DICOMs to solid bodies efficiently would be highly appreciated!

Thank you!

[Rob]

Have a look at Synopsys Simpleware as we've been using that for stl and scan geometry for 15+ years, and it's much easier now we (Ansys) are part of Synopsys. There is also a chance they'll have some example models of various body parts as implants was one of the earlier collaboration projects.