Virtual analysis of stresses in human teeth restored with esthetic posts
The use of intra-radicular posts for rebuilding of damaged teeth is a normal practice in contemporary dentistry. However, dental roots restored with posts are subjected to the risk of failure under occlusal loads, particularly in cases of small dentin thickness. This study adopted the finite element...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2008-12-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000400014 |
| _version_ | 1811261240779997184 |
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| author | Martha Vasconcellos Amarante Marcos Venicius Soares Pereira Fathi Aref Ibrahim Darwish Arnaldo Freitas Camarão |
| author_facet | Martha Vasconcellos Amarante Marcos Venicius Soares Pereira Fathi Aref Ibrahim Darwish Arnaldo Freitas Camarão |
| author_sort | Martha Vasconcellos Amarante |
| collection | DOAJ |
| description | The use of intra-radicular posts for rebuilding of damaged teeth is a normal practice in contemporary dentistry. However, dental roots restored with posts are subjected to the risk of failure under occlusal loads, particularly in cases of small dentin thickness. This study adopted the finite element analysis to compare the elastic stress distribution in simulated endodontically treated maxillary central incisor restored with two different esthetic posts, a ceramic post and a prefabricated fiber glass post. Under masticatory load, the shear stress and von Mises equivalent stress were determined for the different regions of the two models. The results demonstrated that stress concentrations occurred mainly in the cervical dentin in the prefabricated fiber glass post model. The ceramic post model presented stress concentration in a region limited to the proper post adjacent to its apical end, thus preserving the root dentin. |
| first_indexed | 2024-04-12T19:00:53Z |
| format | Article |
| id | doaj.art-5cc70ea1f94b435dadf4e8fa21519722 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-12T19:00:53Z |
| publishDate | 2008-12-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-5cc70ea1f94b435dadf4e8fa215197222022-12-22T03:20:10ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392008-12-0111445946310.1590/S1516-14392008000400014Virtual analysis of stresses in human teeth restored with esthetic postsMartha Vasconcellos AmaranteMarcos Venicius Soares PereiraFathi Aref Ibrahim DarwishArnaldo Freitas CamarãoThe use of intra-radicular posts for rebuilding of damaged teeth is a normal practice in contemporary dentistry. However, dental roots restored with posts are subjected to the risk of failure under occlusal loads, particularly in cases of small dentin thickness. This study adopted the finite element analysis to compare the elastic stress distribution in simulated endodontically treated maxillary central incisor restored with two different esthetic posts, a ceramic post and a prefabricated fiber glass post. Under masticatory load, the shear stress and von Mises equivalent stress were determined for the different regions of the two models. The results demonstrated that stress concentrations occurred mainly in the cervical dentin in the prefabricated fiber glass post model. The ceramic post model presented stress concentration in a region limited to the proper post adjacent to its apical end, thus preserving the root dentin.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000400014ceramic postfiber glass postshear stressesvon Mises equivalent stresses |
| spellingShingle | Martha Vasconcellos Amarante Marcos Venicius Soares Pereira Fathi Aref Ibrahim Darwish Arnaldo Freitas Camarão Virtual analysis of stresses in human teeth restored with esthetic posts Materials Research ceramic post fiber glass post shear stresses von Mises equivalent stresses |
| title | Virtual analysis of stresses in human teeth restored with esthetic posts |
| title_full | Virtual analysis of stresses in human teeth restored with esthetic posts |
| title_fullStr | Virtual analysis of stresses in human teeth restored with esthetic posts |
| title_full_unstemmed | Virtual analysis of stresses in human teeth restored with esthetic posts |
| title_short | Virtual analysis of stresses in human teeth restored with esthetic posts |
| title_sort | virtual analysis of stresses in human teeth restored with esthetic posts |
| topic | ceramic post fiber glass post shear stresses von Mises equivalent stresses |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000400014 |
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