ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,309, issued on Aug. 19, was assigned to Nobel Biocare Services AG (Kloten, Switzerland).

"Abutment system and dental methods" was invented by Lars Jorneus (Frillesas, Sweden), Eric Rompen (Liege, Belgium), Eric Van Dooren (Antwerp, Belgium) and Bernard Touati (Paris).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application relates to an abutment system (12) and its use. The abutment system (12) comprises: a soft tissue level abutment part (10) adapted to be attached to a bone level dental implant (40) by means of an abutment screw (56), wherein the abutment system is adapted to selectively support both a cement-retained final restoratio...