Violation
Which of the following systemic diseases does/do NOT predispose a patient to periodontitis? 1. Cyclic neutropenia. 2. Diabetes mellitus. 3. Acquired immunodeficiency syndrome. 4. Hereditary hypohydrotic ectodermal dysplasia.
(4) only
All of the above.
(1) (2) (3)
(1) and (3)
(2) and (4)