Violation
Differential diagnosis for short term pain and swelling of the gingiva associated with an endodontically treated tooth should include 1. periodontal abscess. 2. periapical abscess. 3. vertical root fracture. 4. internal root resorption.
(2) and (4)
(1) (2) (3)
(1) and (3)
All of the above
(4) only