A Novel Rat Model of Orthodontic Tooth Movement Using Temporary Skeletal Anchorage Devices: 3D Finite Element Analysis and In Vivo Validation
Figure 9
Histologic hematoxylin and eosin stained paraffin sections of the maxillary left (a) and right (b) first permanent molar area. While normal bone remodeling occurs on the control side with no gap between the first and second molar (a), increased separation between the first and second permanent molars (tooth movement) and increased bone remodeling is evident on the tension side of OTM (b). (c) Higher magnification of boxed area in (b) with stretched PDL fibers (Inset). (d) Alveolar bone surrounding the micro-TSAD, (arrows) with part of TSAD inadvertently into PDL space surrounding the tooth root. denotes TSAD space; scale bars = 1 mm.
