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. 2022 Jul 22;19(15):8928.
doi: 10.3390/ijerph19158928.

Post Placement and Restoration of Endodontically Treated Canines: A Finite Element Analysis Study

Alexandru Dan Popescu  1 , Dragoș Laurențiu Popa  2 , Andreea Gabriela Nicola  3 , Ionela Teodora Dascălu  4 , Cristian Petcu  1 , Tiberiu Tircă  3 , Mihaela Jana Tuculina  1 , Horia Mocanu  5 , Adela Nicoleta Staicu  1 , Lelia Mihaela Gheorghiță  1
Affiliations

Post Placement and Restoration of Endodontically Treated Canines: A Finite Element Analysis Study

Alexandru Dan Popescu et al. Int J Environ Res Public Health. .

Abstract

The purpose of this study was to show the improved outcomes of restoring endodontically treated teeth with fiberglass posts compared to restorations using metal posts. In our study, we used the Finite Element Method (FEM), which is based on the principle that a physical model that supports a given load distributes the stress throughout its volume. We sought to assess what stress results in a tooth when it is restored using a fiberglass post compared to restoration using a metal post. The finite element analysis showed that a system consisting of a tooth with a fiberglass post is more stable in terms of the maximum stress than a system consisting of a tooth with a metal post. The maximum displacements and deformations were obtained in the case of a canine restored with a fiberglass post, which showed that this system had a high elasticity, therefore, higher strength than a canine restored with a metal post, which had high rigidity.

Keywords: caries restoration; devital tooth; fiberglass post; metal post.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Model of the dento-maxillary system with intact canine 3.3.
Figure 2
Figure 2
Ansys Workbench interface.
Figure 3
Figure 3
Defining forces in Ansys Workbench.
Figure 4
Figure 4
The model of the microsystem of canine 3.3 with a post.
Figure 5
Figure 5
The whole system and the microsystem of canine 3.3 with a post in Ansys.
Figure 6
Figure 6
Maps of stress generated in the root with a Ni + Cr post.
Figure 7
Figure 7
Displacement maps of a restored canine with a Ni + Cr post, under masticatory forces.
Figure 8
Figure 8
Maps of deformation under stress of a canine restored with a Ni + Cr post.
Figure 9
Figure 9
Maps of stress generated in the root by a glass fiber post.
Figure 10
Figure 10
Displacement maps of a restored tooth with a fiberglass post under masticatory forces.
Figure 11
Figure 11
Maps of deformation under stress of a canine restored with a fiberglass post.
See this image and copyright information in PMC

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