AN IN VITRO EVALUATION OF COMPRESSIVE AND TENSILE STRENGTH OF FOUR RECENT CORE BUILD UP MATERIALS- A COMPARATIVE STUDY
Dr. Mohammad Iqbal*, Dr. Juhi Hussain and Ms. Ahad Fahd Al Qahtani
ABSTRACT
Context: Mechanical properties such as compressive strength and tensile strength of core build up materials play an important role in efficacy and longevity of the tooth and its restoration. Aims: To compare the compressive & tensile strength of four different core build up materials- Paracore, Luxacore Z Dual, Fluorocore and Multicore. Methods and Material: A total of 200 specimens divided into four groups, 50 of each material were fabricated and subjected the universal testing machine to determine the compressive strength & tensile strength of each. Readings were recorded in each group and compared using one factor analysis of variance (ANOVA) after ascertaining normality by Shapiro-Wilk’s test and homogeneity of variance between groups by Levene’s test and the significance of mean difference between the groups was done by Bonferronis’s post hoc test after adjusting for multiple contrasts. Analyses were performed on SPSS software (Windows version 17.0). The differences observed between the groups were statistically significant. Results: Paracore showed the highest compressive strength and tensile strength than the rest of the materials. Conclusions: It was concluded that Paracore is the best suited material for core build up.
Keywords: Compressive strength, Tensile Strength, Core build up, Composites.
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