Position, Angulation, and Sink Depth: Aspects of Therapy Used to Avoid and Modify Suboptimal Implant Placement.

Careful treatment planning, both clinically and radiographically, and when needed, utilization of a surgical guide, are prerequisites for proper implant placement. Accurate implant insertions with respect to position, angulation, and sink depth facilitate successful fabrication of prosthetic constructs. However, non-optimally located fixtures concerning these three facets of therapy can create biologic and prosthetic complications. This article discusses guidelines for correct implant insertions and for adjustments to surgical and prosthetic protocols to diminish problems associated with suboptimal implant placements.