#$%^&*AU2014202174B220190801.pdf#####ABSTRACT OF THE DISCLOSURE A sinus implant includes a mounting hole axially defined therein, a plurality of positioning threads spirally upwardly extended around the periphery thereof and gradually reducing in 5 width in direction from a bottom side toward an opposing top side thereof, one or multiple spiral grooves extending around the periphery thereof across the positioning threads, and a pushing tip of reduced diameter located at respective top ends of the positioning threads and defining a flat end face and a recess space 10 in the flat end face in communication with each spiral groove.
