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Laser Doppler flowmetry is able to assess blood flow within the dental pulp directly. A laser beam directed onto the tooth follows the path of dentinal tubules to the pulp. [19] The viability of the vascular supply of the pulp is determined by the output signal generated by the backscattered reflected light from circulating blood cells. [20]
The health of the dental pulp can be established by a variety of diagnostic aids which test either the blood supply to a tooth (Vitality Test) or the sensory response of the nerves within the root canal to specific stimuli (Sensitivity Test). Although less accurate, sensitivity tests, such as Electric Pulp Tests or Thermal Tests, are more ...
Regenerative endodontics is founded by the seminal work by Dr. Ostby in the early 1960s. He hypothesized that the presence of blood clot within the root canal promotes healing of the pulp, hence maintaining the vitality of the pulp. This can be quite similar to the role of blood clot in other injury site in the healing process.
Perforating vessels originate from lamina dura and the vessels perforate the socket wall (cribriform plate). Gingival vessels are derived from the gingival tissue. Outer layers of blood supply in PDL may help in mechanical suspension and support of the tooth while inner layers of blood vessels supply surrounding PDL tissues. [11]
Blood vessels going into the dental papilla are formed into groups that coincides with the positions of where the roots will develop in future. As time passes, the viability of the tissue is affected as the blood supply becomes steadily reduced in stages and the volume of pulpal tissue starts decreasing too.
The dental pulp is the central part of the tooth filled with soft connective tissue. [16] This tissue contains blood vessels and nerves that enter the tooth from a hole at the apex of the root. [23] Along the border between the dentin and the pulp are odontoblasts, which initiate the formation of dentin. [16]
The formative role of the dental follicle starts when the crown of the tooth is fully developed and just before tooth eruption into the oral cavity. [2]Although tooth eruption mechanisms have yet to be understood entirely, generally it can be agreed that many factors, together, affect the tooth eruption process which is why it is very difficult to differentiate the causes and effects. [3]
Vessels and nerves: :25. dental :26. periodontal :27. alveolar through channel In dental anatomy, the apical foramen , literally translated "small opening of the apex," is the tooth's natural opening, found at the root's very tip—that is, the root apex — whereby an artery, vein, and nerve enter the tooth and commingle with the tooth's ...