Table 2. Short-term periradicular tissue reactions of root ends filled with MTA and IRM.
Figure 1. Spindle-shaped or polygonal periradicular cells in direct contact with the MTA used as root-end filling materialat1postoperative week (H&E, magnification 400x).
Figure 2. Densely packed collagen fibres (arrow) in close proximity to the MTA used as root-end filling material at 2 postoperative weeks (H&E, magnification 250x).
Figure 3. Fibrous capsule (arrows) and hard tissue (arrowheads) formed in direct contact to the MTA used as root-end filling material at 3 postoperative weeks. The inflammation was scored as moderate-to-severe (H&E, magnification 40x).
Figure 4. Fibrous capsule and hard tissue (arrows) formed in direct contact to the exposed dentin surface and MTA used as root-end filling material at 5 postoperative weeks. (H&E, magnification 250x).
Figure 5. Scanning electron microscope examination at the material surface, 2 weeks after MTA used as a root-end filling material.
(a) Formation of new calcified matrix onto the MTA surface. The resected dentine surface (asterisk) (magnification 300x).
(b) Higher magnification of (a). Homogenous surface structure of well-organized crystal depositions (magnification 5000x).
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