Violation
An infected root is accidentally displaced into the maxillary sinus. Examination of the socket reveals perforation of the sinus lining with an oro-antral communication. Therapy should consist of 1. antrostomy for retrieval of root. 2. closure of oro-antral communication and antibiotic coverage. 3. antibiotic coverage and observation. 4. acrylic template to cover socket opening and saline rinses.
(1) and (2)
(1) only
(3) only
(4) only
(1) and (3)