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Implant Dentistry:
doi: 10.1097/ID.0b013e318288d548
Basic and Clinical Research

A Method for Obtaining a Three-Dimensional Geometric Model of Dental Implants for Analysis via the Finite Element Method

Carvalho Silva, Guilherme DDS, MS*; Pereira Cornacchia, Tulimar Machado DDS, MS, PhD; Barbosa de Las Casas, Estevam Civ. Eng., MSc, PhD; Silami de Magalhães, Cláudia DDS, MS, PhD§; Moreira, Allyson Nogueira DDS, PhD

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Abstract

Purpose:

The aim of the study was to present a methodology of development of a virtual 3-dimensional dental implant model for analyses via the finite element method.

Materials and Methods:

A set, consisting of a dental implant and abutment, was embedded in acrylic resin for subsequent metallographic grinding and polishing. After the evidentiation of the internal geometry of the implant, the specimen was treated in a sputter for observation using scanning electron microscopy (SEM). The SEM image was transported to computer-aided design software by which all details of the implant were measured. With the measures obtained, the geometry was reproduced with 3-dimensional modeling software. Finally, the model was imported into finite element method analysis software with which it was discretized, generating a mesh.

Results:

A model with the accurate geometry of the implant was developed. A mesh of 297,600 elements and 490,045 nodes was generated. An aleatory acceleration simulation was performed to test the mesh, and no errors were identified.

Conclusion:

The developed methodology generated a precise dental implant model, which can be applied in different finite element method simulations.

Copyright © 2013 by Lippincott Williams & Wilkins

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