Ji-Su Oh, Su-Gwan Kim, Jae-Seek You
Feb 11, 2016
Citations
2
Influential Citations
8
Citations
Quality indicators
Journal
The Journal of oral implantology
Abstract
W ith its high survival rates, dental implant surgery is now regarded as a predictable method for oral rehabilitation. Nevertheless, as more implant surgeries are performed, the number of accidents and complications associated with implants increase. In addition, an unexpected implant displacement discomposes the surgeon and damages adjacent structures, such as the maxillary sinus or the inferior alveolar nerves, resulting in serious complications. However, accidents and complications can be minimized with adequate presurgical evaluations. When cortical bone is insufficient in providing primary stability, implant fixture may migrate to the maxillary sinus or the medullary space during implant placement. It has been reported previously that in patients with poor bone quality, thin cortical bone, and short residual bone height, it is more likely for the implant fixture may become displaced or migrate into the maxillary sinus in the posterior maxilla. However, displacement of an implant into the medullary space during implant placement in the posterior mandible is an unusual complication associated with dental implants. This report discusses two cases in which the implant fixture was accidentally displaced to the medullary space during a routine implant placement in the posterior mandible. The importance of presurgical evaluation and surgical precautions to prevent displacement are also discussed.