“…Ultrasonic vibration has a dispersing effect on the particles of the material, which frequently cluster together. In fact, ultrasonic energy has been used to enhance the mechanical properties of materials such as compressive strength (24,25), tensile bond strength (26,27), hardness (28), and fill density (29). Ultrasonic energy might also increase the total reactive surface area, improve particle interaction, and decrease setting time (24,27).…”