Figure 8From: Biophysical characterization of low-frequency ultrasound interaction with dental pulp stem cellsMDPC-23 odontoblast-like percent change in cell numbers after treatment with low-frequency 45-kHz ultrasound. The data are mean of three experiments using three replicates for each experiment. The graph shows the percentage of cell number compared to the control group. The error bars shown represent standard deviation values versus control values (*p < 0.05, **p < 0.01).Back to article page