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dental pulp		A richly vascularized and innervated connective tissue of mesodermal origin, contained in the central cavity of a tooth and delimited by the dentin, and having formative, nutritive, sensory, and protective functions. (Jablonski, Dictionary of Dentistry, 1992) [ Articles | Books | Images | Discussion groups ]
Additional comments : Dental pulp is a specialised connective tissue consisting of a collagen matrix containing lymph vessels, blood vessels, afferent nerves. It is a loose connective tissue, characterized by its specific anatomical location; The dental pulp is a metabolically active tissue with high capacity for regeneration and tissue turnover. (Pinzon et al. 1966) Dental pulp is a loose mesenchymal tissue characterized by its particular location and almost entirely enclosed in a mineralized tissue. C Culture, G Zymography, C Articles - Journal of Endodontics, 2001 The most important function of the dental pulp is to ensure the production of dentin matrix and its subsequent calcification by odontoblasts. S Yoshida, H Ohshima - The Anatomical Record, 1996 Exposed dental pulp is known to possess the ability to form a hard-tissue barrier (dentin bridge). The exact mechanisms by which pulp cells differentiate into odontoblasts   in this process are unknown. Fibronectin has been demonstrated to play a crucial role in odontoblast differentiation during tooth development. K Yoshiba, N Yoshiba, H Nakamura, M Iwaku, H Ozawa - J Dent Res An adequate blood supply to the dental pulp is essential to the health of the tooth; therefore, there have been a number of efforts to study pulpal blood flow and the factors which influence it. However, blood flow to the dental pulp is relatively inaccessible and apparently quite low. Consequently, it is difficult to obtain accurate flow measurements, partly owing to methodological difficulties with the small size of the tissue and its enclosure within rigid walls. E Okabe, K Todoki, H Ito - J Endodont, 1989 The dental pulp is richly innervated by peptidergic nociceptive neurones that are   of special interest because of their central role in dental pain and because they have some features that are not typical of other somatic nociceptors. Pan M, Naftel JP, Wheeler EF. Arch Oral Biol. 2000 May;45(5):387-99. The dental pulp is enclosed by hard tissues, enamel, cement, and dentine, which means that the dental pulp is not contaminated easily. T Tsuchimochi, M Iwasa, Y Maeno, H Koyama, H Inoue … - Am J Forensic Med Pathol, 2002 The average volume of the dental pulp is 0.02 mL, the molar pulps having four times the volume of incisor. Oral Development and Histology by James K. Avery

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