A three-dimensional topology optimization model for tooth-root morphology

To obtain the root of a lower incisor through structural optimization, we used two methods: optimization with Solid Isotropic Material with Penalization (SIMP) and Soft-Kill Option (SKO). The optimization was carried out in combination with a finite element analysis in Abaqus/Standard. The model geometry was based on cone-beam tomography scans of 10 adult males with healthy bone-tooth interface. Our results demonstrate that the optimization method using SIMP for minimum compliance could not adequately predict the actual root shape. The SKO method, however, provided optimization results that were comparable to the natural root form and is therefore suitable to set up the basic topology of a dental root.

Schlagworte

Dental biomechanics

SIMP

SKO

finite element method

topology optimization

Computer Simulation

Cone-Beam Computed Tomography

Dental Implants

Finite Element Analysis

Humans

Incisor

Male

Numerical Analysis, Computer-Assisted

Tooth Root

Imaging, Three-Dimensional

Models, Anatomic

Options

A three-dimensional topology optimization model for tooth-root morphology