Intratubular fluid is the liquid found within the dentinal tubules of a tooth. These tubules are microscopic channels that run from the pulp to the dentin-enamel junction. The fluid plays a crucial role in tooth sensitivity. When you eat something hot, cold, or sweet, the fluid moves, triggering nerve endings in the pulp and causing that zing of sensitivity.
Understanding intratubular fluid is key for both general dentists and endodontists, especially when dealing with procedures like root canals that affect the dental pulp. So, next time you wince at ice cream, you know what’s at play!