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Planning of Optimal Position and Orientation of Implants
with respect to Bone Density and Primary Stability

For a high primary stability of implants it is important to place them relative to the bone density and to plan accordingly. The threads should be in the Compacta and not only in the cancellous tissue. This is often easier said than done. There are many reasons why an implant does not heal perfectly at the planned position and alignment. A risk analysis can automatically consider how safe an implant position is or how insensitive to a position or alignment error. Safe positions are insensitive to small position errors in primary stability.