Author(s):
1. Milan Blagojevic, Fakultet inženjerskih nauka Univerziteta u Kragujevcu, Serbia
2. Jelena Eric, University of East Sarajevo, Faculty of Medicine, Federation of Bosnia and Herzegovina , Bosnia and Herzegovina

Abstract:
In spite of numerous studies on biomechanics of the mucous membrane supported dentures, satisfactory determination of the mucous membrane loads is still lacking.The aim of this study was to evaluate the effect of different mucosa thickness and resiliency on stress distribution of complete denture using FEM. An edentulous mandible with complete denture was converted into a 3-D numerical model by 3D scanner ATOS. In each group, mucosa assumed three characteristics of thickness (1, 3 and 5 mm) corresponding to the resiliencies hard, resilient and soft respectively. Evaluation was performed using software NASTRAN with 300N vertical load applied on central incisor teeth. The analyses were based on the maximum and minimum principal stress and displacement values in the supporting tissues. The y-axis displacement values increased as the thickness and resiliency of mucosa increased for all structures.

Key words:
biomechanics,FEM,STL2MESH,mandible,complete denture

Thematic field:
Production and Computer-Aided Technologies

Date of abstract submission:
28.02.2015.

Conference:
12th International conference on accomplishments in Electrical and Mechanical Engineering and Information Technology (DEMI 2015)