Implant complications: biomechanical and esthetic considerations--a prosthodontist's perspective.

Implant placement has continued to gain acceptance as a viable solution for the treatment of missing teeth, serving as an alternative to dentures or bridges. However, clinicians must be aware of and capable of handling complications that may accompany the placement of dental implants. Complications can range from prosthetic problems stemming from misalignment of implants, to fixed removable prosthesis-related complications, to screw-connection impediments.