A three-dimensional finite-element stress analysis of an endodontically prepared maxillary central incisor.
J Endod
; 21(7): 362-7, 1995 Jul.
Article
em En
| MEDLINE
| ID: mdl-7499976
This study is an application of a three-dimensional Finite-Element Method to investigate the changes in stress characteristics of a prepared maxillary central incisor. The purpose of this study was to analyze stress distributions in this tooth after simulated canal preparation and static loading. A maxillary central incisor was embedded in acrylic, sectioned, photographed, and digitized. A three-dimensional finite-element model was generated by a computer and appropriately modified to simulate canal preparation. Data identified the highest stress magnitudes to be located between the middle and coronal thirds of the root; an area clinically observed to be prone to fracture during treatment. In addition, the magnitude of generated stresses was directly correlated with the simulated prepared canal diameter. The development of a validated three-dimensional finite-element method could identify areas that may predispose a tooth to structural failure during condensation loads.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Obturação do Canal Radicular
/
Análise do Estresse Dentário
/
Incisivo
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
Idioma:
En
Ano de publicação:
1995
Tipo de documento:
Article