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Fig. 4 | Radiation Oncology

Fig. 4

From: Acoustic diagnosis of elastic properties of human tooth by 320 MHz scanning acoustic microscopy after radiotherapy treatment for head and neck cancer

Fig. 4

Acoustic impedance data distribution of non-irradiated and irradiated enamel and dentin as scatter plots. (a) shows acoustic impedance data for each group of enamel, and (b) shows acoustic impedance data for each group of dentin. Compared to no irradiation tooth group, the statistically significant irradiated groups were marked with the asterisk associating with * p = .0296, *** p ≤ .0006, **** p < .0001

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