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- Title
A Study To Evaluate The Effect On Transverse Strength And Modulus Of Elasticity Of Repaired Denture Base Resin After Chemical Surface Treatment - An In Vitro Study.
- Authors
Kishore, K. Krishna; Anne, Gopinadh; Bindu, Swetha Hima O.; Sreedevi, B.; Sampath, Anche; Manyam, Pavan Kumar
- Abstract
Aim & Objectives: The objective of this study was to evaluate the effect on Transverse strength and Modulus of elasticity of repaired denture base resin after chemical surface treatment. Materials and Methods: 50 rectangular specimens (65 " 10 " 3mm) of DPI heat cure acrylic were fabricated according to ADA Specification No.12. and were divided into 5 groups, each consisting of 10 specimens. Group 1- specimens treated with methylene chloride for 30 seconds, Group 2 - specimens treated with acetone for 30 seconds, Group 3-with out any fracture (Intact specimens) ,Group 4- specimens treated without any surface treatment, Group 5 specimens treated with MMA for 180 seconds. All specimens were subjected to the 3-point bending test with an Instron universal testing machine to evaluate the flex modulus and transverse strength. The obtained data was statistically analyzed by One-way ANOVA & Newman-Keuls multiple post hoc test. Results : Significant differences were found between the control and experimental groups. The results showed that the modulus of elasticity of the specimens treated with methylene chloride showed significant values than all the other groups, however the remaining groups did not show significant difference among themselves. The transverse strength of methylene chloride treated specimens showed highest values among all the tested groups ,followed by monomer group. Not much difference was shown by the acetone group when compared to the control group. Conclusion : Methylene chloride group showed highest transverse strength and modulus of elasticity among all the tested specimens.
- Subjects
DENTURES; GUMS &; resins; SURFACE preparation; DICHLOROMETHANE; ACETONE
- Publication
Indian Journal of Dental Sciences, 2013, Vol 5, Issue 4, p60
- ISSN
0976-4003
- Publication type
Article