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[This article belongs to Volume - 25, Issue - 07]

Effects of Red Dragon Fruit on The Diametral Tensile Strength of Dental Self-Adhesive Flowable Composite

One of the factors causing the increasing use of composite resins as a restorative material in dentistry is the simplification use of adhesives and the invention of self-adhesive flowable composite (SAFC). The mechanical characteristics of composite resins must be excellent, since it has an important role during mastication process. One of the mechanical strength tests used to evaluate this capability is diametral tensile strength test. In the oral environment, the filling material is exposed to and interacts with fluids such as healthy drinks derived from red dragon fruit juice which is important in health maintenance. However, the acidity of fruit juice may reduce mechanical strength of tooth restorative materials. This study investigated the effects of red dragon fruit juice on diametral tensile strength of self-adhesive flowable composite (SAFC). Fifty samples of SAFC (6x3 mm) were divided into 5 groups (n=10); group 1 was 24 hours control, group 2A was submerged in red dragon fruit juice for 6 days and group 2B for 12 days, group 3A was submerged in distilled water 6 days and group 3B for 12 days. Samples of group 2A and 2B were immersed for 8 hours in red dragon fruit juice and 16 hours in distilled water (37oC). Samples of group 1, 3A, and 3B were immersed in distilled water (37oC). Diametral tensile strength was tested using universal testing machine (Shimadzu, Japan). The data were analysed statistically using one way ANOVA test and post hoc Tukey test. Statistical analysis showed there was significant differences (p<0,05) of diametral tensile strength. The highest diametral tensile strength average value is the control group with value 49,19 MPa. It can be concluded red dragon fruit juice affects diametral tensile strength of SAFC.