Influence on the intensity and accuracy of superhard gypsum powder mixed with disinfectant
AIM:To study the influence on dimensional accuracy,the bending and compressive intensity of superhard gypsum powder mixed with disinfectant.METHODS:The experimental group adopted 20 g/L Wu dialdehyde,1 g/L iodine,5 g/L 84 disinfectant respectively and the Control group adopted the distilled water tune to mix superhard gypsum powder to manufacture the rectangular parallelepiped sample and upper jaw dental arch survey samples.The intensity was tested by omnipotent testing machine and samples length was measured with survey microscope.The obtained data were analysed statistically.RESULTS:There was no significant difference in compressive intensity,bending intensity and dimensional accuracy of the superhard gypsum specimen(P>0.05).CONCLUSION:There is no significant influence on compressive intensity,bending intensity and dimensional accuracy of the superhard gypsum powder mixed with selected disinfectant.