Iloprost induces tertiary dentin formation.

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Dental Research

Background:

• Prostacyclin (PGI2) is a prostaglandin that supports angiogenesis and cell proliferation.
• Dental pulp cells are crucial for maintaining tooth vitality and repair.

Purpose of the Study:

• To investigate the effects of iloprost, a PGI2 analog, on dentin repair processes.
• To evaluate iloprost's potential in promoting tertiary dentin formation and angiogenesis in dental pulp.

Main Methods:

• In vitro studies using human dental pulp cells (HDPCs) assessed gene expression and mineralization.
• In vivo studies utilized a rat molar mechanical pulp exposure model.
• Immunohistochemistry was employed to measure vascular endothelial growth factor (VEGF) protein expression.

Main Results:

• Iloprost stimulated osteo-/odontogenic marker expression, alkaline phosphatase activity, and mineral deposition in HDPCs.
• Significant tertiary dentin formation was observed in iloprost-treated rats compared to controls.
• Iloprost treatment increased VEGF protein expression in dental pulp tissue.

Conclusions:

• Iloprost effectively induces osteo-/odontogenic markers in vitro and promotes tertiary dentin formation in vivo.
• The study demonstrates iloprost's capacity to enhance angiogenic factor expression.
• Iloprost shows promise as a therapeutic agent for vital pulp therapy.