Fenestrated capillaries in the connective tissues of the periodontal ligament
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Cited by (26)
Effect of duration of force application on blood vessels in young and adult rats
2008, American Journal of Orthodontics and Dentofacial OrthopedicsCitation Excerpt :This might be explained by increased BV permeability.12 The BV of the rat PDL is characterized by many fenestrations.16 Mechanical loading induces increased numbers and sizes of these fenestrae, and BV respond with increased permeability, which enhances extravasation of fluid into the interstitial tissue.2,17,18
Distinct fibro-vascular arrangements in the periodontal ligament of the horse
2005, Archives of Oral BiologyCitation Excerpt :These cells were found either in (at most two) continuous layers around the total circumference of the venule or sporadically on the surface of the vessels (Fig. 4c). It is generally accepted that the function of the periodontal vascular system exceeds mere nutritional needs13 and that mechanical support14–16 of the tooth and tooth eruption17–21 are features especially associated with the vascular arrangements. Due to the distinctive shape of equine cheek teeth, the PDL features regions that are predominantly exposed either to traction forces or to compression.7
Changes in periodontal pulsation in relation to increasing loads on rat molars and to blood pressure
2002, Archives of Oral BiologyCitation Excerpt :The periodontal ligament appears to experience relatively high strains from external loads (Middleton et al., 1996). It has many fenestrated capillaries, whose presence is important in resisting external forces such as masticatory loading (Moxham et al., 1985). Moreover, blood flow in the periodontal ligament plays the part of a hydraulic damper against external forces (Bien and Ayers, 1965) and the rest position of the rabbit incisor is influenced by the blood pressure (Myhre et al., 1979).
Histomorphometric study of the periodontal vasculature during and after experimental tipping of the rat incisor
2001, Archives of Oral BiologyCitation Excerpt :The blood vessels respond with increased permeability through the endothelial gaps (Iida et al., 1992; Tang et al., 1993; Chintakanon and Sims, 1994). Moxham et al. (1985) and Clark et al. (1991) report numerous fenestrae also in vessels of the rat incisor and molar; Clark maintains that these have also been noted in mice and man. Mechanical loading induces an increase in number and size of the fenestrae (Lew et al., 1989), enabling extravasation of leukocytes into the interstitial tissue (Rygh et al., 1986), which itself is the major source of a variety of cytokines that activate osteogenic cells, thus initiating bone remodeling and tooth movement (Davidovitch, 1991).