Fig. 1From: Clinical feasibility and benefits of a tapered, sand-blasted, and acid-etched surfaced tissue-level dental implantMacroscopic design of the Stella® implant system used in this study. The 8° conical seal design located in the prosthetic connection part prevents screw loosening. The three spiral cutting edges enable self-tapping, facilitate rapid implantation, and minimize the resistance of the boneBack to article page