What are the roles of osteoblasts, osteocytes, and osteoclasts?

All of these are bone cells. The bone is destroying and reconstructing all the time, and the cells in charge of it are these.

Osteoblasts are in charge of maintenance, rehabilitation, and growth of bone.

Osteocytes are the mature cells forming the bone.

Osteoclasts are in charge of degradation and absorption of the old or damaged bone.