Abstract
Today, digital technologies in dentistry provide general practitioners many advantages and are required accuracy. Implant sur-gery should be performed not allowing the implant to cause any harm to its surrounding tissue. And then implant superstruc-tures are d emanded the accuracy as precision parts. This article describes how to apply the clinical decision to implant surgery
and prosthodontics based on the instructions and the research of the predecessor and according to the purp ose of four restora-tion treatments by Frank Spear et al.