Which of the following is?are (an) indication(s) for the removal of impacted mandibular third molars? 1. Recurrent pericoronitis. 2. Prevention of crowding of mandibular incisors. 3. Pain. 4. They are impacted.
(1) and (3)
(1) (2) (3)
(2) and (4)
(4) only
All of the above.
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