Self-tapping externally threaded dental implants including multiple external cutting grooves

A self-tapping, externally threaded, screw-type endosseous dental implant includes an elongated body having a tapered body portion and an internally-threaded passage inside the body of said implant and internal wrench-engaging surfaces located inside said passage, wherein the external threads include a plurality of cutting grooves, and wherein at least one groove/first set of grooves cuts bone during clockwise rotation of said implant into a placement site, and at least one groove/a second set of grooves cuts bone during counter-clockwise rotation of said implant into said placement site, and wherein each of said cutting grooves includes a flat leading surface and an opposing cutting edge on a second surface on each of said grooves, wherein each cutting edge is formed at an acute angle with respect to the circumference defined by the outer edges of said grooves, and wherein all of the grooves in a set of said grooves are positioned below one another in a vertical array that is parallel to said implant's longitudinal/vertical axis, and wherein said vertical array extends along the entirety of said tapered body portion up to the widest diameter of said body near the top of said dental implant.