Which of the following are true statements about incision and drainage of an acute apical abscess?
1. A rubber dam drain may be placed and sutured to assist drainage.
2. The procedure is only indicated with a localized, fluctuant swelling.
3. Profound anesthesia of the surgical site is not always possible.
4. Relief of the pressure and pain is immediate after treatment.

(2) and (4)

(1) (2) (3)

(1) and (3)

All of the above.

(4) only