Thread design is very important for surgery as well as theading. The KnifeThread of ST system has powerful self-threading capability that ensures initial stability, heightens resistance to compressive force, and minmizes the occumence of shear force, leading to excellecnt load distribution.

Its morphology has ideally combined macro and micro roughness through the blasting and etching processes verified in terms of safety, and it has superior bone formation capability.
(If surface morphology is too sharp, the edges can fall off and become foregin objects during implant placement.)