HOSA Dental Terminology Practice 2026 – All-in-One Study Guide for Exam Success!

Question: 1 / 1775

What is secondary dentin?

Dentin that forms from tooth decay

Dentin formed throughout the pulp chamber after eruption

Secondary dentin is a type of dentin that is formed throughout the lifetime of a tooth, primarily after its eruption. It develops from the pulp of the tooth and acts as a protective barrier, gradually laying down in response to various stimuli, including aging, wear, and minor trauma. This type of dentin reduces the size of the pulp chamber over time, as it is produced more slowly than primary dentin, which forms during the tooth's development.

In contrast to tooth decay-related dentin or dentin associated with procedures like root canals or specific types of teeth, secondary dentin is a natural and physiological response of healthy teeth to factors in their environment. Understanding this process is crucial in dental practice, as it highlights the dynamic nature of tooth structure and the potential for adaptation to challenges over time.

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Dentin that is removed during a root canal

Dentin primarily found in deciduous teeth

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