Australian Dental Council (ADC) Test 2026 – 400 Free Practice Questions to Pass the Exam

Peritubular dentine is indeed the most mineralized part of dentine. This specific type of dentine surrounds the dentinal tubules, which are microscopic channels that extend through the dentine and allow communication between the pulp and the surrounding tooth structure. The peritubular dentine is denser and contains a higher mineral content compared to other types of dentine, contributing to the overall strength and structural integrity of the tooth.

The high mineralization of peritubular dentine plays a vital role in providing mechanical support, protecting against bacterial invasion and external forces, and contributing to the durability of the tooth. Its dense structure is essential for maintaining the health of the dental pulp by providing a barrier against harmful stimuli.

In contrast, intertubular dentine, which fills the spaces between the tubules, is not as highly mineralized as peritubular dentine. Interglobular dentine is recognized for its incomplete mineralization and often appears in areas where enamel and dentine meet. Fibrous dentine is less commonly referenced in traditional classifications and may include variations that do not focus on mineralization. Understanding the mineral composition and structural differences between these types contributes significantly to knowledge in dental health and pathology.