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Progress in Orthodontics
Fig. 2 | Progress in Orthodontics

Fig. 2

From: Parathyroid hormone promotes maxillary expansion and reduces relapse in the repeated activation maxillary expansion rat model by regulating Wnt/β-catenin pathway

Fig. 2

The effects of maxillary expansion on bone remodeling in rats. The rats were divided into control, single activation and repeated activation groups, respectively. A The conditions of palatal suture tissue remodeling and widening were assessed by H&E staining. Magnification, 400 ×. B The chondrocytes in mid-palatal suture were evaluated by toluidine blue staining. Magnification, 400 ×. C The histological fibrosis grades of mid-palatal suture in rats were measured by Masson staining. Magnification, 400 ×. D The number change of chondrocytes, osteoblasts and osteoclasts was counted in each group based on the H&E staining results. **P < 0.01, ***P < 0.001 versus control group; ##P < 0.01 versus single activation group. The red arrow indicates chondrocyte, the black arrow indicates osteoclast, and the blue arrow indicates osteoblast

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