What clinical evidence would support a diagnosis of acute dento-alveolar abscess? 1. A negative reaction to the electric vitality tester. 2. A positive reaction of short duration to cold. 3. A positive reaction to percussion. 4. Presence of a draining fistula.
(1) and (3)
(2) and (4)
(4) only
All of the above.
(1) (2) (3)
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