Fig. 4.

Schematic illustration of ROI and the characteristics of alveolar bone in periodontitis. (A) Schematic illustration of ROI, the yellow dotted boxes show the ROI and the red line shows that the root of the tooth was excluded from the ROI. (B) Micro-CT images of the periodontal bone tissue after 2 weeks of suturing. (C) Comparison of bone parameters between periodontitis and normal periodontal bone tissue (n ​= ​3). (∗∗∗: P ​< ​0.001). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)