Violation
The etiology of an open bite malocclusion of dental origin is most often the result of 1. increased eruption of the anterior teeth. 2. decreased eruption of the anterior teeth. 3. decreased eruption of the posterior teeth. 4. increased eruption of the posterior teeth.
(2) and (4)
(4) only.
All of the above.
(1) (2) (3)
(1) and (3)