Which tissue signals eruption by recruiting osteoclasts to resorb overlying bone and create an eruption path?

• A. Gingival epithelium.
• B. Dental pulp.
• C. Dental follicle.
• D. Enamel organ.

Answer: (C)

The dental follicle is the tissue that signals eruption. It surrounds the developing tooth and releases factors that recruit and activate osteoclasts to resorb the overlying bone, creating an eruption pathway. This controlled bone resorption is what allows the tooth to move toward and through the jaw until it reaches the oral cavity. The gingival epithelium, dental pulp, and enamel organ don’t drive this bone-resorption signaling—the follicle coordinates the remodeling needed for eruption, while the others serve different roles (gingival lining, tooth vitality, and enamel formation, respectively).