Pulp cavity
Cavitas pulparis
- Latin synonym: Cavitas dentis
Definition
On making a vertical section of a tooth, a cavity will be found in the interior of the crown and the center of each root; it opens by a minute orifice at the extremity of the latter. This is called the pulp cavity, and contains the dental pulp, a loose connective tissue richly supplied with vessels and nerves, which enter the cavity through the small aperture at the point of each root.
Some of the cells of the pulp are arranged as a layer on the wall of the pulp cavity; they are named the odontoblasts of Waldeyer, and during the development of the tooth, are columnar in shape, but later on, after the dentin is fully formed, they become flattened and resemble osteoblasts. Each has two fine processes, the outer one passing into a dental canaliculus, the inner being continuous with the processes of the connective-tissue cells of the pulp matrix.
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