The aims of this study is to evaluate the effect of the of the microwave radiations on the acrylic powder itself by irradiating it with microwave radiation at different power (270watt, 360 watt), time (1/4 hr, 1/2 hr), and environmental situations (dry, wet and immersed with water) to see the possibilities of improving its properties by comparing the cured samples prepared from the microwave irradiated acrylic powder with those samples prepared from control and high impact acrylic. The results showed that there is a significant increase in the transverse strength, and decrease in the hardness...