Abstract
Interim dentures are easily broken on the bridge, and this cause has a negative effect on the dentures. This study aims to evaluate the impact strength and flexural strength of dentures in relation to two fiber blending ratios, in order to examine the negative influences of the addition of fibers to acrylic resin on the properties of interim dentures. The powder and solvent are blended at a ratio of 1:1. Different amounts of glass fibers or modified glass (M-glass) fibers are respectively added to the mixtures. These mixtures are well stirred and are processed for molding in order to make different composites. The composites are evaluated for impact and flexural strengths. The test results indicate that the composites containing 0.6 % glass fibers exhibit optimal aesthetic appearance and maximum mechanical strengths. The resulting resin composites can be applied to crowns, bridges, and tooth bases.
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