Violation
Which systemic disease does NOT especially predispose to periodontitis? 1. Cyclic neutropenia. 2. Trisomy 21 (Down’s Syndrome). 3. Diabetes mellitus. 4. Aquired immunodeficiency syndrome.
(1) and (3)
(4) only
(1) (2) (3)
All of the above.
(2) and (4)