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Effect of the occlusal splint device on the stress distribution of the fixation screws, dental implant and bone tissue around the implant in dental clenching situation: a three-dimensional finite element analysis

Grant number: 19/18178-7
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): November 01, 2019
Effective date (End): July 31, 2020
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Principal Investigator:Victor Eduardo de Souza Batista
Grantee:Lorena Scaioni Silva
Home Institution: Faculdade de Ciências da Saúde (FCSA). Universidade do Oeste Paulista (UNOESTE). Presidente Prudente , SP, Brazil


The aim of this study will be to analyze the biomechanical behavior of three-unit fixed prosthesis in situation of parafunction oral (clenching) with or without the use of occlusal splint by 3D finite element methods. Eight 3-D models will be simulated with the software In Vesalius, SolidWorks 2010 and Rhinoceros 4.0. Each model will be represented by a posterior maxillary bone section referring to first premolar and first molar right with three dental implants (external hexagon) of 4 mm of diameter and 7 mm of length supporting 3-units fixed prosthesis varying the factors union (splinting) and the use of occlusal splint. The occlusal splint will be modeled with 2 mm of thickness. The software FEMAP 11.4.2 will be used to generate the finite element models in the pre- and post- processing steps. The bone tissue will be analyzed by maximum principal stress and microstrain maps and the fixation screws and dental implants by the von Mises stress map.