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.
Main Authors: | Soares,Carlos José, Pizi,Eliane Cristina Gava, Fonseca,Rodrigo Borges, Martins,Luis Roberto Marcondes |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Pesquisa Odontológica - SBPqO
2005
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242005000100003 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Influence of periodontal ligament simulation on bond strength and fracture resistance of roots restored with fiber posts
by: MARCHIONATTI,Ana Maria Estivalete, et al.
Published: (2014) -
Dental trauma involving root fracture and periodontal ligament injury: a 10-year retrospective study
by: Panzarini,Sônia Regina, et al.
Published: (2008) -
In Vitro Cytotoxicity Evaluation of Three Root-End Filling Materials in Human Periodontal Ligament Fibroblasts
by: Coaguila-Llerena,Hernán, et al.
Published: (2016) -
Importance of periodontal ligament thickness
by: Cuoghi,Osmar Aparecido, et al.
Published: (2013) -
STUDY OF THE ANTEROLATERAL LIGAMENT OF THE KNEE IN FORMALIN-EMBEDDED CADAVERS
by: Fardin,Paloma Batista Almeida, et al.
Published: (2017)