Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesions
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/1654 |
Resumo: | Objective: The prevalence of non-carious cervical lesions (NCCLs) has increased in the recent years, especially in the elderly population. The successful prevention and treatment of those lesions requires an understanding of the biomechanics of aged teeth. Considering the importance of such aspect, the impact of the age-related dentin deposition on the stress distribution of NCCLs was evaluated by means of finite element analysis. Material and Methods: A 2-dimensional model of a sound maxillary first premolar was created using CAD software. Two tooth geometries (sound, aged) and two lesion shapes (wedge, saucer) were simulated to the model. The mesh was built with 35,000 triangle and square elements of 0.1 mm in length. All tissues were considered isotropic, homogeneous and linear. Occlusal surfaces were loaded with 300 N for simulating normal chewing forces. The stress distribution was analyzed by a color scale and by the maximum principal stress at the cavosurface line angle. Results: The aged models presented lower stress concentration in the overall system in comparison to sound models. The sharp angle of wedge shaped lesions promoted higher stress concentration at the center of cavosurface angle, favoring the lesions progression. Conclusion: Considering the limitations of the current methodology, it is possible to conclude that aged tooth is a more compact structure that can better respond to stress loadings. This protective intrinsic mechanism should be considered when adopting preventive and restorative measures for NCCLs for the elderly.KeywordsAging; Finite element analysis; Non-carious; Cervical lesions. |
id |
UNESP-20_5455aee4d75bbee5a65895385ce86238 |
---|---|
oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/1654 |
network_acronym_str |
UNESP-20 |
network_name_str |
Brazilian Dental Science |
repository_id_str |
|
spelling |
Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesionsObjective: The prevalence of non-carious cervical lesions (NCCLs) has increased in the recent years, especially in the elderly population. The successful prevention and treatment of those lesions requires an understanding of the biomechanics of aged teeth. Considering the importance of such aspect, the impact of the age-related dentin deposition on the stress distribution of NCCLs was evaluated by means of finite element analysis. Material and Methods: A 2-dimensional model of a sound maxillary first premolar was created using CAD software. Two tooth geometries (sound, aged) and two lesion shapes (wedge, saucer) were simulated to the model. The mesh was built with 35,000 triangle and square elements of 0.1 mm in length. All tissues were considered isotropic, homogeneous and linear. Occlusal surfaces were loaded with 300 N for simulating normal chewing forces. The stress distribution was analyzed by a color scale and by the maximum principal stress at the cavosurface line angle. Results: The aged models presented lower stress concentration in the overall system in comparison to sound models. The sharp angle of wedge shaped lesions promoted higher stress concentration at the center of cavosurface angle, favoring the lesions progression. Conclusion: Considering the limitations of the current methodology, it is possible to conclude that aged tooth is a more compact structure that can better respond to stress loadings. This protective intrinsic mechanism should be considered when adopting preventive and restorative measures for NCCLs for the elderly.KeywordsAging; Finite element analysis; Non-carious; Cervical lesions.Institute of Science and Technology of São José dos Campos2019-04-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfimage/jpegimage/jpegimage/jpegimage/jpegapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/vnd.openxmlformats-officedocument.wordprocessingml.documenthttps://ojs.ict.unesp.br/index.php/cob/article/view/165410.14295/bds.2019.v22i2.1654Brazilian Dental Science; Vol. 22 No. 2 (2019): Apr. - Jun. / 2019 - Published April 2019; 171-177Brazilian Dental Science; v. 22 n. 2 (2019): Apr. - Jun. / 2019 - Published April 2019; 171-1772178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPenghttps://ojs.ict.unesp.br/index.php/cob/article/view/1654/1345https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3494https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3495https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3496https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3497https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3498https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3499https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3500https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3501Copyright (c) 2019 Brazilian Dental Scienceinfo:eu-repo/semantics/openAccessAugusto, Marina GulloSato, Tabata do Pradode Castro, Maria José DominguesValera, Marcia CarneiroBorges, Alexandre Luis SoutoBresciani, Eduardo2020-01-28T11:57:54Zoai:ojs.pkp.sfu.ca:article/1654Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:30:19.231058Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true |
dc.title.none.fl_str_mv |
Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesions |
title |
Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesions |
spellingShingle |
Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesions Augusto, Marina Gullo |
title_short |
Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesions |
title_full |
Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesions |
title_fullStr |
Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesions |
title_full_unstemmed |
Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesions |
title_sort |
Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesions |
author |
Augusto, Marina Gullo |
author_facet |
Augusto, Marina Gullo Sato, Tabata do Prado de Castro, Maria José Domingues Valera, Marcia Carneiro Borges, Alexandre Luis Souto Bresciani, Eduardo |
author_role |
author |
author2 |
Sato, Tabata do Prado de Castro, Maria José Domingues Valera, Marcia Carneiro Borges, Alexandre Luis Souto Bresciani, Eduardo |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Augusto, Marina Gullo Sato, Tabata do Prado de Castro, Maria José Domingues Valera, Marcia Carneiro Borges, Alexandre Luis Souto Bresciani, Eduardo |
description |
Objective: The prevalence of non-carious cervical lesions (NCCLs) has increased in the recent years, especially in the elderly population. The successful prevention and treatment of those lesions requires an understanding of the biomechanics of aged teeth. Considering the importance of such aspect, the impact of the age-related dentin deposition on the stress distribution of NCCLs was evaluated by means of finite element analysis. Material and Methods: A 2-dimensional model of a sound maxillary first premolar was created using CAD software. Two tooth geometries (sound, aged) and two lesion shapes (wedge, saucer) were simulated to the model. The mesh was built with 35,000 triangle and square elements of 0.1 mm in length. All tissues were considered isotropic, homogeneous and linear. Occlusal surfaces were loaded with 300 N for simulating normal chewing forces. The stress distribution was analyzed by a color scale and by the maximum principal stress at the cavosurface line angle. Results: The aged models presented lower stress concentration in the overall system in comparison to sound models. The sharp angle of wedge shaped lesions promoted higher stress concentration at the center of cavosurface angle, favoring the lesions progression. Conclusion: Considering the limitations of the current methodology, it is possible to conclude that aged tooth is a more compact structure that can better respond to stress loadings. This protective intrinsic mechanism should be considered when adopting preventive and restorative measures for NCCLs for the elderly.KeywordsAging; Finite element analysis; Non-carious; Cervical lesions. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/1654 10.14295/bds.2019.v22i2.1654 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/1654 |
identifier_str_mv |
10.14295/bds.2019.v22i2.1654 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/1654/1345 https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3494 https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3495 https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3496 https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3497 https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3498 https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3499 https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3500 https://ojs.ict.unesp.br/index.php/cob/article/view/1654/3501 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Brazilian Dental Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Brazilian Dental Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf image/jpeg image/jpeg image/jpeg image/jpeg application/vnd.openxmlformats-officedocument.wordprocessingml.document application/vnd.openxmlformats-officedocument.wordprocessingml.document application/vnd.openxmlformats-officedocument.wordprocessingml.document |
dc.publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 22 No. 2 (2019): Apr. - Jun. / 2019 - Published April 2019; 171-177 Brazilian Dental Science; v. 22 n. 2 (2019): Apr. - Jun. / 2019 - Published April 2019; 171-177 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br |
_version_ |
1788346900732182528 |