Which cell type is primarily responsible for new bone formation (osteogenesis) in the healing extraction socket?

Osteoblasts are the bone-forming cells responsible for synthesizing and secreting the organic bone matrix (osteoid), which subsequently mineralizes to form new bone. In the healing extraction socket, osteoblasts differentiate from local mesenchymal stem cells (osteoprogenitor cells) and begin depositing woven bone during the proliferative phase of healing (approximately 1–2 weeks post-extraction). Osteoclasts are responsible for bone resorption. Odontoblasts form dentin and are not involved in bone formation. Fibroblasts produce connective tissue matrix but are not bone-forming cells.