|Support type:||Scholarships in Brazil - Scientific Initiation|
|Effective date (Start):||April 01, 2013|
|Effective date (End):||December 31, 2013|
|Field of knowledge:||Health Sciences - Dentistry - Dental Materials|
|Principal Investigator:||Eduardo Piza Pellizzer|
|Grantee:||Cleidiel Aparecido Araujo Lemos|
|Home Institution:||Faculdade de Odontologia (FOA). Universidade Estadual Paulista (UNESP). Campus de Araçatuba. Araçatuba , SP, Brazil|
This project aims to analyze the biomechanical effect of implant-supported fixed unitary and multiple prostheses with external hexagon geometry installed in the posterior maxillary region, varying the type of rehabilitation: a) three implants with single fixed prostheses (negative control); b) three implants with splinted fixed implant-supported prostheses (positive control); c) two implants with fixed implant-supported prostheses presenting a central pontic. This methodology will be use the 3D finite element method. The program InVesalius (CTI, São Paulo, Brazil) will be used for modeling the bone tissue and the programs Rhinoceros 3D 4.0 (NURBS Modeling for Windows, USA) and SolidWorks 2011 (SolidWorks Corp, USA) will be used for modeling of the three designs. Each model will constitute a bone block, with the presence of three or two implants of 4,00 x 10 mm (Conexão Sistema de Prótese, Ltda, São Paulo, Brasil) according to the description above. The models will be processed in finite element program FEMAP v.10.2 (Siemens Product Lifecycle Management Software Inc.USA). Then 200N axial and 100N oblique (45º) will be applied at the internal areas of the crown cusp. After analysis by the finite element program NEiNastran 9.2 the results will be viewed through Von Mises tension and Maximum Principal Stress maps individualized for each model when necessary.