Influence of root embedment material and periodontal ligament simulation on fracture resistance tests
The aim of this study was to evaluate the influence of the embedment material and periodontal ligament simulation on fracture resistance of bovine teeth. Eighty bovine incisor teeth were randomized into 8 groups (n = 10), embedded in acrylic or polystyrene resin using 4 types of periodontal ligament simulation: 1 - absence of the ligament; 2 - polyether impression material; 3 - polysulfide impression material; 4 - polyurethane elastomeric material. The specimens were stored at 37°C and 100% humidity for 24 hours. Specimens were submitted to tangential load on the palatal surface at 0.5 mm/minute crosshead speed until fracture. The fracture modes were analyzed as follows: 1 - coronal fracture; 2 - cemento-enamel junction fracture; 3 - partial root fracture; 4 - total root fracture. Statistical analyses by two-way ANOVA and Tukey's test were applied (p < 0.05). The results showed that root embedment method and periodontal ligament simulation have a significant effect on fracture resistance. Artificial periodontal ligament modified the fracture modes.
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Sociedade Brasileira de Pesquisa Odontológica - SBPqO
2005
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oai:scielo:S1806-832420050001000032005-06-22Influence of root embedment material and periodontal ligament simulation on fracture resistance testsSoares,Carlos JoséPizi,Eliane Cristina GavaFonseca,Rodrigo BorgesMartins,Luis Roberto Marcondes Fracture resistance Periodontal ligament Tooth root Cementoenamel junction The aim of this study was to evaluate the influence of the embedment material and periodontal ligament simulation on fracture resistance of bovine teeth. Eighty bovine incisor teeth were randomized into 8 groups (n = 10), embedded in acrylic or polystyrene resin using 4 types of periodontal ligament simulation: 1 - absence of the ligament; 2 - polyether impression material; 3 - polysulfide impression material; 4 - polyurethane elastomeric material. The specimens were stored at 37°C and 100% humidity for 24 hours. Specimens were submitted to tangential load on the palatal surface at 0.5 mm/minute crosshead speed until fracture. The fracture modes were analyzed as follows: 1 - coronal fracture; 2 - cemento-enamel junction fracture; 3 - partial root fracture; 4 - total root fracture. Statistical analyses by two-way ANOVA and Tukey's test were applied (p < 0.05). The results showed that root embedment method and periodontal ligament simulation have a significant effect on fracture resistance. Artificial periodontal ligament modified the fracture modes.info:eu-repo/semantics/openAccessSociedade Brasileira de Pesquisa Odontológica - SBPqOBrazilian Oral Research v.19 n.1 20052005-03-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242005000100003en10.1590/S1806-83242005000100003 |
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Soares,Carlos José Pizi,Eliane Cristina Gava Fonseca,Rodrigo Borges Martins,Luis Roberto Marcondes |
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Soares,Carlos José Pizi,Eliane Cristina Gava Fonseca,Rodrigo Borges Martins,Luis Roberto Marcondes Influence of root embedment material and periodontal ligament simulation on fracture resistance tests |
author_facet |
Soares,Carlos José Pizi,Eliane Cristina Gava Fonseca,Rodrigo Borges Martins,Luis Roberto Marcondes |
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Soares,Carlos José |
title |
Influence of root embedment material and periodontal ligament simulation on fracture resistance tests |
title_short |
Influence of root embedment material and periodontal ligament simulation on fracture resistance tests |
title_full |
Influence of root embedment material and periodontal ligament simulation on fracture resistance tests |
title_fullStr |
Influence of root embedment material and periodontal ligament simulation on fracture resistance tests |
title_full_unstemmed |
Influence of root embedment material and periodontal ligament simulation on fracture resistance tests |
title_sort |
influence of root embedment material and periodontal ligament simulation on fracture resistance tests |
description |
The aim of this study was to evaluate the influence of the embedment material and periodontal ligament simulation on fracture resistance of bovine teeth. Eighty bovine incisor teeth were randomized into 8 groups (n = 10), embedded in acrylic or polystyrene resin using 4 types of periodontal ligament simulation: 1 - absence of the ligament; 2 - polyether impression material; 3 - polysulfide impression material; 4 - polyurethane elastomeric material. The specimens were stored at 37°C and 100% humidity for 24 hours. Specimens were submitted to tangential load on the palatal surface at 0.5 mm/minute crosshead speed until fracture. The fracture modes were analyzed as follows: 1 - coronal fracture; 2 - cemento-enamel junction fracture; 3 - partial root fracture; 4 - total root fracture. Statistical analyses by two-way ANOVA and Tukey's test were applied (p < 0.05). The results showed that root embedment method and periodontal ligament simulation have a significant effect on fracture resistance. Artificial periodontal ligament modified the fracture modes. |
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Sociedade Brasileira de Pesquisa Odontológica - SBPqO |
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2005 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242005000100003 |
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AT soarescarlosjose influenceofrootembedmentmaterialandperiodontalligamentsimulationonfractureresistancetests AT pizielianecristinagava influenceofrootembedmentmaterialandperiodontalligamentsimulationonfractureresistancetests AT fonsecarodrigoborges influenceofrootembedmentmaterialandperiodontalligamentsimulationonfractureresistancetests AT martinsluisrobertomarcondes influenceofrootembedmentmaterialandperiodontalligamentsimulationonfractureresistancetests |
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1756431447937253376 |