抄録
We report a case who was treated with endoscopic sinus surgery for a dental implant accidentally displaced into the maxillary sinus.
A 60-year-old female was referred to the Shiga University of Medical Science Hospital with a shedding abutment which had been placed in the upper-left second molar area. Postoperatively, she also complained of left nasal obstruction. Physical examination revealed slight swelling of the left cheek. Recess of gingiva of about 3 mm in diameter was seen in the upper-left second molar. A bone defect was also noted in this part.
A panoramic radiograph and CT examination revealed a dental implant with an abutment in the left maxillary sinus. The CT examination also showed hypertrophy of the left maxillary sinus mucosa. Functional endoscopic sinus surgery through an incision in the nasal mucosa of 1.0×1.5 cm was performed to extract the dental implant from the maxillary sinus. The postoperative clinical course was uneventful.
Endoscopic sinus surgery proved to be effective in decreasing the invasiveness in this case; hence, this method can be considered useful in the treatment of a dental implant accidentally displaced in the maxillary sinus.
