the pulp of a tooth is made of

The dental pulp is the part in the center of a tooth made up of living connective tissue and cells calledodontoblasts. The dental pulp is a part of the dentin–pulp complex (endodontium).^[1] The vitality of the dentin-pulp complex, both during health and after injury, depends on pulp cell activity and the signaling processes that regulate the cell’s behavior.