HOSA Dental Terminology Practice

What is a dentinal tubule?

1. A space in the dentin occupied by the odontoblastic process

2. The major point of contact between occluding teeth

3. A specific lobe on a molar tooth

4. The action of chewing food

The correct answer is: A space in the dentin occupied by the odontoblastic process

A dentinal tubule refers to the small, hollow channels that are present in the dentin layer of a tooth, which is the tissue beneath the enamel and above the pulp. Each dentinal tubule contains an odontoblastic process, which is the extension of the odontoblast cells responsible for the formation of dentin. These tubules are crucial for the health and sensitivity of the teeth since they allow for the passage of nutrients and the transmission of pain signals in response to stimuli. This intricate structure underscores the vital role that dentinal tubules play in the overall function and health of teeth, highlighting their importance in dental anatomy.