IADR Abstract Archives

3D-FEA evaluation of stress distribution in narrow diameter implants

Objectives: The aim of this study was to evaluate the stress distribution generated by the prostheses on single implants, in maxillary anterior region, varying the diameter of narrow implants (2.9 mm and 3.5 mm), using the 3D finite element analyses.
Methods: Six 3D models were simulated using Invesalius, Rhinoceros 3D and SolidWorks software’s. Each model had a bone block from anterior maxillary region (type III bone) contain the teeth central incisor and canine, simulating a rehabilitation with a cemented zirconia single crown, supported by a 2.9 mm or 3.5 mm diameter Morse taper dental implant, varying the length (8.5 mm; 10 mm and 13 mm), installed 1.5 mm infrabone. The models were processed by ANSYS 19.2 software, using 178 N strength at different slopes (0, 30 and 60). The results were plotted on Von Mises maps (vM), Maximum Principal Stress (MPS) maps.
Results: In the analysis of vM there was an increase in the stress concentration for implants with smaller diameter. The increase in strain inclination increased the stress concentration in the implants/components and bone tissue. In bone tissue analysis under the MPS maps, higher concentrations of tensile and compression stresses were found in the oblique loads (30 and 60) around the implant neck, especially when using 2.9 mm implants.
Conclusions: We can conclude that the use of larger diameter dental implants under the conditions of the study improve a reduction of stress in bone tissue adjacent to the implant, regardless of the length of the implant used.

2020 Chilean Division Meeting (Virtual)

2020

Implantology Research
  • Fernandes E Oliveira, Hiskell  ( Universidade Estadual Paulista Julio de Mesquita Filho Faculdade de Odontologia de Aracatuba Campus de Aracatuba , Araçatuba, São Paulo, Brasil , Brazil )
  • Silva Cruz, Ronaldo  ( Universidade Estadual Paulista Julio de Mesquita Filho Faculdade de Odontologia de Aracatuba Campus de Aracatuba , Aracatuba-SP , Brazil )
  • Lemos, Cleidiel  ( Universidade Estadual Paulista Julio de Mesquita Filho Faculdade de Odontologia de Aracatuba Campus de Aracatuba , Aracatuba-SP , Brazil )
  • De Souza Batista, Victor  ( Universidade Estadual Paulista Julio de Mesquita Filho Faculdade de Odontologia de Aracatuba Campus de Aracatuba , Aracatuba-SP , Brazil )
  • Capalbo-silva, Rodrigo  ( Universidade Estadual Paulista Julio de Mesquita Filho Faculdade de Odontologia de Aracatuba Campus de Aracatuba , Aracatuba-SP , Brazil )
  • Costa Yogui, Fernanda  ( Universidade Estadual Paulista Julio de Mesquita Filho Faculdade de Odontologia de Aracatuba Campus de Aracatuba , Aracatuba-SP , Brazil )
  • Limírio, João Pedro J. De  ( Universidade Estadual Paulista Julio de Mesquita Filho Faculdade de Odontologia de Aracatuba Campus de Aracatuba , Aracatuba-SP , Brazil )
  • Ramos Verri, Fellippo  ( Universidade Estadual Paulista Julio de Mesquita Filho Faculdade de Odontologia de Aracatuba Campus de Aracatuba , Aracatuba-SP , Brazil )
  • NONE
    FAPESP 2017/03744-1
    Poster Session
    Poster Session B