Abstract
BackgroundDisplacement of dental implants into the maxillary sinus is rare, but it primarily occurs in patients with severe pneumatization of the maxillary sinus and/or deficiency of the alveolar process. Some complications such as the infection of the paranasal sinuses and formation of the oroantral fistula can be followed by the displacement of a dental implant. Therefore, the displaced implant has to be removed immediately with surgical intervention show and another plan for rehabilitation should be considered.Main bodyThe conventional procedure for the removal of a displaced implant from the maxillary sinus involves sinus bone grafting and new implant placement performed in two or more steps with a significant time gap in between. Simplification of these surgical procedures can decrease the treatment duration and patient discomfort.ConclusionsIn this review, we discuss the anatomical characteristics of the maxillary sinus and the complications associated with implant displacement into the sinus.
Highlights
Severe maxillary sinus pneumatization and thin residual alveolar bone can lead to the displacement of dental implants into the maxillary sinus during placement or after prosthetic restoration
In this review, we discuss the anatomical characteristics of the maxillary sinus and the complications associated with implant displacement into the sinus
We discuss the anatomical characteristics of the maxillary sinus, conventional approach for the removal of displaced implants from the maxillary sinus, and complications associated with implant displacement and describe a simplified treatment process for the removal of displaced implants with simultaneous sinus bone grafting and new implant placement
Summary
Conclusions: In this review, we discuss the anatomical characteristics of the maxillary sinus and the complications associated with implant displacement into the sinus. Introduction Severe maxillary sinus pneumatization and thin residual alveolar bone can lead to the displacement of dental implants into the maxillary sinus during placement or after prosthetic restoration. Displacement can occur more often in patients who undergo simultaneous implant placement and bone grafting after sinus elevation [1].
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