This work presents the results of a immunohistochemical study, performed in order to identify the cells in human dental pulp which express neural markers. Population of cells expressing neuron-specific enolase, synaptophysin, and chromogranin A, which were stained by paraldehyde-fuchsin, was demonstrated in subodontoblastic layer of the dental pulp. Changes the number, morphological and functional characteristics during development of caries and pulpitis in combination with periodontitis are described.
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