The first signs of tooth development are known to be as early as 6th week of intrauterine life. The oral epithelium begins to multiply and invaginates into ectomesenchyme cells which gives rise to dental lamina. The dental lamina is the origin of the tooth bud. The bud stage progresses to the cap stage when the epithelium forms the enamel organ. The ectomesenchyme cells condense further and become dental papilla. Together, the epithelial enamel organ and ectomesenchymal dental papilla and follicle form the tooth germ. The dental papilla is the origin of dental pulp. Cells at the periphery of the dental papilla undergo cell division and differentiation to becomes odontoblasts. Pulpoblasts form in the middle of the pulp. This completes the formation of the pulp. The dental pulp is essentially a mature dental papilla.