It is assumed that the odontoblasts and nerve endings, especially in the period of teeth, have a high energy demand. This may be true in Mature teeth. Consequently, despite the limited collateral circulation, peripheral pulp well-vascularized. Blood flow in young adults pulp at rest, during the relatively high compared to other tissues of the oral cavity (50). In the adult dog, blood flow per 100 g tissue ca. 40 ml/min in the teeth of a fully formed apex. For comparison, in the Desna it ca. 30 ml/min Dense capillary network in the peripheral cellulose also allows filtering fluid from the blood vessels, thereby providing the dentinal tubules with the liquid. In the old teeth blood supply consistently becomes less. ..