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Finite Element Modelling of Teeth Restorative Systems
Background
In dental teeth restoration it is important to aslong as possible keep the original biological toothroots to ensure the best chewing conditions. (Theultimate remedy would be to replace the rootwith an implant.) The fixation of a replacedcrown to the original root is therefore crucial.There are several ways to accomplish the fixationof the crown to the remaining part of the tooth.One way is to glue the parts together using dif-ferent types of cement.
Figure 1: Simplified geometrical model of toothwith a crown attach to the core
Failure of repaired teeth has in the majority ofcases been caused by fracture in the cement layer.In order to predict and evaluate different designsof the glued surfaces as well as different types ofcement a parametrised FE-model is to be createdin this thesis work.
Project description
A 3D geometry of a realistic tooth will be usedas input for the model. Different material modelsfor the cement are to be tested as well as differ-ent fracture criteria. The thesis work will be incooperation with the Department of OdontologyDent. mtrl. sci. GU-SA. The computations areto be performed at the Department of AppliedMechanics.
This thesis project is suitable for two studentsinterested in FE modelling using commercial soft-ware i.e. ANSYS, ABAQUS or LS-DYNA.
Figure 2: Layers in tooth composing the FEmodel
Supervisor/examiner at Material- and Compu-tational mechanics Chalmers: PhD Carl Sand-strom/Senior Lecturer, PhD Mats Ander. Super-visors at GU-SA is Prof Carina Johansson andDDS Sebastian Franco Tabares.
Supervisor: Examiner:Carl Sandstrom Mats Ander (contact)Applied Mechanics Applied MechanicsMaterial and Computational Mechanics Material and Computational [email protected] [email protected]
