European Journal of Biomedical and Pharmaceutical Sciences

COMPARATIVE EVALUATION OF TENSILE STRENGTH OF FOUR RECENT CORE BUILD UP MATERIALS: AN IN VITRO STUDY

*Dr. Mohammad Iqbal, Dr. Jayaprakash Thumu, Dr. Juhi Hussain, Dr. Abu Mohammad Khan, Dr. Ahmad Danish Rehan and Dr. Mangesh D. Kadu

ABSTRACT

Context: Mechanical properties such as 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 tensile strength of four different core build up materials Paracore, Luxacore Z Dual, Fluorocore and Multicore. Methods and Material: A total of 100 specimens divided into four groups, 25 of each material were fabricated and subjected the universal testing machine to determine the 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: Group 1 namely Paracore showed the highest tensile strength than the rest of the groups. Conclusions: It was concluded that Paracore is the best suited material for core build up in terms of tensile strength.

Keywords: Tensile strength, Core build up, Composites.