Effect of compression load and temperature on thermomechanical tests for gutta-percha and Resilon

Tanomaru‐Filho M, Silveira GF, Reis JMSN, Bonetti‐Filho I, Guerreiro‐Tanomaru JM. Effect of compression load and temperature on thermomechanical tests for gutta‐percha and Resilon®. International Endodontic Journal, 44, 1019–1023, 2011. Aim  To analyse a method used to evaluate the thermomechanical...

Full description

Saved in:
Bibliographic Details
Published in:International endodontic journal 2011-11, Vol.44 (11), p.1019-1023
Main Authors: Tanomaru-Filho, M., Silveira, G. F., Reis, J. M. S. N., Bonetti-Filho, I., Guerreiro-Tanomaru, J. M.
Format: Article
Language:English
Subjects:
Analysis of Variance
Compressive Strength
dental materials
Dental Stress Analysis
Dentistry
endodontic filling materials
gutta-percha
Gutta-Percha - chemistry
Hot Temperature
Humans
Materials Testing
Resilon
Rheology
Root Canal Filling Materials - chemistry
Statistics, Nonparametric
Stress, Mechanical
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Tanomaru‐Filho M, Silveira GF, Reis JMSN, Bonetti‐Filho I, Guerreiro‐Tanomaru JM. Effect of compression load and temperature on thermomechanical tests for gutta‐percha and Resilon®. International Endodontic Journal, 44, 1019–1023, 2011. Aim  To analyse a method used to evaluate the thermomechanical properties of gutta‐percha and Resilon® at different temperatures and compression loads. Methodology  Two hundred and seventy specimens measuring 10 mm in diameter and 1.5 mm in height were made from the following materials: conventional gutta‐percha (GCO), thermoplastic gutta‐percha (GTP) and Resilon® cones (RE). After 24 h, the specimens were placed in water at 50 °C, 60 °C or 70 °C for 60 s. After that, specimens were placed between two glass slabs, and loads weighing 1.0, 3.0 or 5.0 kg were applied. Images of the specimens were digitized before and after the test and analysed using imaging software to determine their initial and final areas. The thermomechanical property of each material was determined by the difference between the initial and final areas of the specimens. Data were subjected to anova and SNK tests at 5% significance. To verify a possible correlation between the results of the materials, linear regression coefficients (r) were calculated. Results  Data showed higher flow area values for RE under all compression loads at 70 °C and under the 5.0 kg load at 60 °C (P 
ISSN:0143-2885
1365-2591
DOI:10.1111/j.1365-2591.2011.01910.x