The Ball Welding Bar: A New Solution for the Immediate Loading of Screw-Retained, Mandibular Fixed Full Arch Prostheses

Figure 3

Scanning electron microscopy (SEM) evaluation of the dual acid etched (DAE) implant surface. The surface (a) presented micron-sized shallow cavities uniformly covered by submicroscopic pitting (b) limited by razor-sharp cusps and edges (c).

(a)

(b)

(c)