Multiple choice Which of the following cells are master regulators of the immune system in pulp? Odontoblasts Dendritic cells Mast cells Preodontoblasts All of the above Reveal answer Fill a bubble to check yourself B Correct answer Explanation Dendritic cells are the master regulators of immune system in pulp. When pulp is irritated, odontoblastic processes sense invasion and elicit requirement of dendritic cells which phagocytose invaders and present antigens to stimulate T-lymphocytes.