Three-Dimensional Finite Element Analysis of Anterior Single Implant-Supported Prostheses with Different Bone Anchorages

TheScientificWorldJournal
Fellippo Ramos VerriEduardo Piza Pellizzer

Abstract

The aim of this study was to evaluate the stress distribution of monocortical and bicortical implant placement of external hexagon connection in the anterior region of the maxilla by 3D finite element analysis (FEA). 3D models were simulated to represent a bone block of anterior region of the maxilla containing an implant (4.0 × 10.0 mm) and an implant-supported cemented metalloceramic crown of the central incisor. Different techniques were tested (monocortical, bicortical, and bicortical associated with nasal floor elevation). FEA was performed in FEMAP/NeiNastran software using loads of 178 N at 0°, 30°, and 60° in relation to implant long axis. The von Mises, maximum principal stress, and displacement maps were plotted for evaluation. Similar stress patterns were observed for all models. Oblique loads increased the stress concentration on fixation screws and in the cervical area of the implants and bone around them. Bicortical technique showed less movement tendency in the implant and its components. Cortical bone of apical region showed increase of stress concentration for bicortical techniques. Within the limitations of this study, oblique loading increased the stress concentrations for all techniques. Moreover, bicortical...Continue Reading

References

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Dec 11, 2014·Materials Science & Engineering. C, Materials for Biological Applications·Fellippo Ramos VerriEduardo Piza Pellizzer
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Citations

Jul 14, 2016·Computer Methods in Biomechanics and Biomedical Engineering·Fellippo Ramos VerriEduardo Piza Pellizzer
Jan 23, 2020·International Journal of Molecular Sciences·Hiroaki KitajimaTakahiro Ogawa
Dec 14, 2017·Brazilian Oral Research·João Paulo Mendes TribstRubens Nisie Tango
Jun 23, 2020·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Efe Can SivrikayaMuhammed Latif Bekci

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Software Mentioned

InVesalius
FEMAP
Rhinoceros
NeiNastran
CT
- Scan
SolidWorks

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