What is the function of odontoblast cells?

Odontoblast cells play a crucial role in dental anatomy and function, primarily by producing dentine, the hard tissue that forms the bulk of a tooth beneath the outer enamel layer. These cells originate from the dental papilla and are located at the interface between the dentine and the pulp chamber of the tooth. As they produce dentine, they establish a vital connection to the pulp, allowing for the nourishment and health of the tooth.

Unlike enamel, which is formed by ameloblasts, odontoblasts specifically contribute to dentine formation throughout the life of the tooth, particularly during development and in response to stimuli such as tooth wear or injury. Their ability to continually produce dentine is essential for maintaining the structural integrity of the tooth.

Cementum formation, which is performed by cementoblasts, and the attachment of teeth to the jaw via the periodontal ligament, are different functions handled by separate cell types in dental biology. Thus, the primary and defining function of odontoblasts is indeed the production of dentine.