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Doctoral Thesis
DOI
10.11606/T.23.2000.tde-25012001-154641
Document
Author
Full name
Isaac José Peixoto Batinga da Rocha
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2000
Supervisor
Committee
Mori, Matsuyoshi (President)
Campos, Tomie Nakakuki de
Kimpara, Estevao Tomomitsu
Liberti, Edson Aparecido
Matson, Edmir
Title in Portuguese
Estudo das tensões em dente restaurado com coroa metalocerâmica e dois formatos de retentores intra-radiculares - método dos elementos finitos.
Keywords in Portuguese
coroa metalocerâmica
estudo das tensões de von Mises
prótese dentária
restauração
retentores intra-radiculares
Abstract in Portuguese
O estudo comparativo da distribuição de tensões de von Mises em dente endodonticamente tratado, com dois formatos de retentores intra-radiculares, pré-fabricado cilíndrico/escalonado e fundido cônico, foi realizado pelo método dos elementos finitos em modelos tridimensionais de caninos superiores com geometria axi-simétrica e restaurados com coroas metalocerâmicas, aplicando-se uma carga oblíqua de 100N com 45 º de inclinação em relação ao seu longo eixo. Os resultados indicaram uma discreta diferença nos dois modelos (formatos) de retentores. O pino escalonado neutralizou mais as cargas no sentido corono-apical e no pino cônico ficou evidenciado o efeito de cunha.
Title in English
Finite element analysis of a endodontically treated teeth restored with two different types of post and core systems.
Keywords in English
porcelain fused to metal crown
post and core
teeth prothesis
teeth restoration
von Mises stress
Abstract in English
The aim of this study was to compare the von Mises stress distribution on a human canine teeth endodontically treated and restored with two types of post and core. The analysis was made using the three dimensional Finite Element Analysis method. For the analysis was created and axy-simetric structure of the teeth, including a porcelain fused to metal crown, a cement layer, and the periodontal structures. The model was analyzed when a 100N load was applied on the surface of the crown with 45º angulation with the long axis of the teeth. The results showed that both models exhibit little difference, the “stair shape” post system neutralized the axial loads, and the conical shape post showed a wedge effect on the apical third of the root.
 
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Publishing Date
2001-01-29
 
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