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Effect of mercury rate on the ultrasonic and mechanical properties of dental amalgam
1 : Faculté des Sciences Agadir
Faculté des Sciences Hay Dakhla Agadir -
Maroc
The objective of this study was to evaluate the effect of mercury rate on the ultrasonic and mechanical properties of dental amalgam by ultrasonic technique. Non gamma2 amalgam samples were prepared by mixing a standard amount of amalgam powder with different amounts of mercury 50, 35, and 20% for 35 seconds. The samples have been examined after being hardened. Ultrasound longitudinal velocity and ultrasonic attenuation coefficient were measured. Then mechanical properties have been calculated. The results showed the influence of mercury rate on amalgam properties. Mechanical properties decrease with increasing the mercury rate.
