TY - JOUR
T1 - Stress distribution and failure load of multilayer and monolayer glass ceramic.
AU - Archangelo, Karen Cristina
AU - Penteado, Marcela Moreira
AU - dal Piva, Amanda Maria de Oliveira
AU - Nogueira, Andrea Souza
AU - Tribst, João Paulo Mendes
AU - Borges, Alexandre Luiz Souto
N1 - Publisher Copyright:
© 2019, Universidade Estadual Paulista, Institute of Science and Technology of Sao Jose dos Campos. All rights reserved.
PY - 2019
Y1 - 2019
N2 - This short report evaluated the differences in stress concentration and the load to fracture of multilayered and monolayer glass ceramic discs. Using a simulated static structural analysis, the 3D model of the samples received a load of 150 N and results in maximum principal stress were obtained. For the in vitro analysis, the samples (ø 12 mm) were submitted to a compressive test (100 kgf, 1 mm/min). The data was analyzed using one-way analysis of variance and Tukey test (α = 5%). The monolayer group showed a lower stress peak (129.24 MPa) and higher load to fracture (118.38 N) than the multilayered group with 211.04MPa and 48.34N, respectively. All samples presented catastrophic failure with its origin on the tensile surface. Therefore, the monolayer ceramic group showed superior mechanical behavior than the multilayered group.
AB - This short report evaluated the differences in stress concentration and the load to fracture of multilayered and monolayer glass ceramic discs. Using a simulated static structural analysis, the 3D model of the samples received a load of 150 N and results in maximum principal stress were obtained. For the in vitro analysis, the samples (ø 12 mm) were submitted to a compressive test (100 kgf, 1 mm/min). The data was analyzed using one-way analysis of variance and Tukey test (α = 5%). The monolayer group showed a lower stress peak (129.24 MPa) and higher load to fracture (118.38 N) than the multilayered group with 211.04MPa and 48.34N, respectively. All samples presented catastrophic failure with its origin on the tensile surface. Therefore, the monolayer ceramic group showed superior mechanical behavior than the multilayered group.
KW - Ceramics
KW - Finite element analysis
KW - Monoblock restoration
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U2 - 10.14295/bds.2018.v22i1.1611
DO - 10.14295/bds.2018.v22i1.1611
M3 - Article
AN - SCOPUS:85064562965
SN - 2178-6011
VL - 22
SP - 17
EP - 22
JO - Brazilian Dental Science
JF - Brazilian Dental Science
IS - 1
ER -