Figure 3From: Biophysical characterization of low-frequency ultrasound interaction with dental pulp stem cellsSnapshots of pressure and intensity plots of (30 kHz, 70 Pa) ultrasonic wave throughout the tooth. (a) Pressure at t = 1.5 μs, (b) intensity at t = 0.5 μs and (c) intensity at t = 3 μs. It shows high-intensity concentration in pulp (arrow) (Additional file1).Back to article page