Violation
Which of the following can be mistaken on a radiograph for a chronic alveolar abscess? 1. Mental foramen. 2. Periapical cemento-osseous dysplasia. 3. Posterior palatine foramen. 4. Nasopalatine foramen.
All of the above
(1) (2) (3)
(1) and (3)
(2) and (4)
(4) only