PMC5368374_01
(a) Preoperative panoramic, (b) lateral cephalogram, and (c, d) CT scan radiographies showed the migration of dental implant sited in 1.6 positions into right maxillary sinus and clear signs of sinusitis.
CRID2017-9634672.001.jpg
PMC5368374_01_CRID2017-9634672.001.jpg
fig1
A panoramic radiograph and a computed tomography (CT) showed the migration of dental implant sited in 1.6 position into the right maxillary sinus (Figure 1).
Preoperative clinical view of right posterior maxilla after the prosthesis was removed. The dental implant sited in position 1.6 results missed due to its dislocation into the sinus cavity.
CRID2017-9634672.002.jpg
PMC5368374_01_CRID2017-9634672.002.jpg
fig2
The implant-supported prosthesis had no sign of mobility and the oral mucosa appeared to be normal with no evidence of oroantral fistula (Figure 2).
(a) Clinical situation after the flap was raised. (b) Photograph of the right maxillary sinus after a lateral window access showing sinusitis secondary to implant displacement. (c) Picture of the implant removal with forceps. (d) Maxillary sinus situation after its surgical revision. (e) Extra-oral view of the removed implant. (f) Clinical situation after the flap was sutured and the fixed prosthesis was cemented. (g) Radiographic view of the right maxillary sinus soon after the implant was removed.
CRID2017-9634672.003.jpg
PMC5368374_01_CRID2017-9634672.003.jpg
fig3
After irrigation with sterile saline solution, flap was closed by primary intention with simple interrupted suture (Figure 3).
(a) Clinical view of the healed surgical area. (b) Lateral cephalogram without any sign of the foreign body into the sinus. (c, d) The CT scans show normal mucosal thickness and no opacification of the right maxillary sinus.
CRID2017-9634672.004.jpg
PMC5368374_01_CRID2017-9634672.004.jpg
fig4
Postoperative course was uncomplicated and patient reported no symptoms of sinusitis after 12 months of follow-up, as confirmed by CT scans (Figure 4).