Dynamics of Alloplastic Bone Grafts on an Early Stage of Corticotomy-Facilitated Orthodontic Tooth Movement in Beagle Dogs

Figure 6

Microphotograph of a buccopalatal/lingual section of the 3-day experiment. (a) Maxilla. (b) Higher magnification of (a). On the pressure side, the PDL was more severely compressed. (c) Higher magnification of (b). Few cells were observed in the PDL space. (d) Mandible. (e) Higher magnification of (d). In common with the maxilla, the PDL was severely more compressed on the pressure side. (f) Higher magnification of (d). Extravasation of RBC was observed in the PDL space. (g) Tension side at the lingual bone crest. The tension side showed abundant cells compared with the pressure side. (h) Higher magnification of (g). Active osteoblasts forming new bone were observed. Grafted MBCP+ particles were lost in the process of making the histological section; the red in (a) and (d) indicates empty spaces which were occupied by MBCP+ graft particles. Masson’s trichrome stain. Original magnification was ×12.5 for (a) and (d), ×100 for (b), (e), and (g), and ×400 for (c), (f), and (h).

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