Abstract

The paper presents the numerical investigation with the purpose to find correlation between geometrical form of a guiding tooth and distribution of contact forces in the human masticatory system. The 3D computational model of masticatory system based on real geometrical data was built by means of LS-DYNA finite element soft-ware. The FEM analysis of simulated occlusal interference adjustment was performed. Results of numerical experi-ments showed that even minimal height of simulated oc-clusal interference on guiding surface of tooth 13 deter-mined significant changes of magnitudes and directions of forces acting on the tooth and influenced its tendency for driftage; also caused changes in loading of the temporo-mandibular joint discs and alternated character of total forces acting on the whole maxillary dental arch.

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