Neural elements in dental pulp and dentin

Abstract

This article addresses the structural and quantitative aspects of human tooth innervation and briefly considers the functions and clinical relevance of tooth axons. The classification of peripheral axons, the pulpal and dentinal innervation, and the theories of dentin sensitivity are discussed. Quantitative studies on tooth innervation are also reviewed. Human premolars receive about 2300 axons at the root-apex of which about 13% are myelinated and 87% are nonmyelinated fibers. Most apical myelinated axons are fast-conducting A delta- Show more