Fakultas Kedokteran Gigi

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Browsing Fakultas Kedokteran Gigi by Subject "acrylic resin"

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    DIMENSIONAL CHANGES IN CLEANING ACRYLIC RESIN DENTURE WITH MICROWAVE ENERGY
    (2013-04-17) PRISCILLA SUNTHARI; Tidak ada Data Dosen; Tidak ada Data Dosen
    ABSTRACT The old denture must be cleaned to maintain it function, but often the cleaning procedure takes risk to change its dimensions. The aim of this research was to evaluate the effect of the microwave cleaning on the dimensional changes of the heat cured acrylic resin. Heat cured acrylic resin was used in this study in the shape of rod with a size of (65 x 10 x 2,5) mm. Total number of specimens were 15, divided into 3 group. Group A was for 5 minutes cleaning by microwave energy, group B for 7 minutes and group C for the control. Five specimens been done for each group. The dimensional change was evaluated with a Digital Micrometer from Mitutoyo Japan with precision of 0,001 mm. The data analyzed by Analysis of Variance (ANOVA), followed by Tukey Test to determine the significant difference among the tested group at p The result shows that the average dimensional change for group A was 0,385mm, group B was 0,535mm and group C 0,199mm. Statistically, there are significant differences between groups of acrylic resin cleaned with microwave energy (5 and 7 minutes) and the control group. The conclusion of this research is that the cleaning procedure of acrylic resin denture with microwave energy for minimal 5 minutes could change its dimensions. Keywords: Dimensional Changes, acrylic resin, cleaning procedure, microwave energy.