Patent ID: 8523568

Claim:
A dental implant comprising: a body portion to be inserted in a bone structure, the body portion including a core, with a diameter of the core in a range between 1 mm and 7 mm and a length of the core between 3 mm and 10 mm, screw blades formed along an outer peripheral surface of the core in the shape of a screw, with a maximum height of the screw blades from an outer peripheral surface of the core in a range between 0.6 mm and 2.0 mm, and a thickness of a lower end portion of the screw blades between 0.25 mm and 1.5 mm, and a connecting portion in form of grooves or holes for connecting spaces blocked by the screw blades; and a mounting portion integrally formed on an upper portion of the core and mounted with a prosthesis thereon directly or indirectly, wherein a diameter of the screw blades of the body portion has a maximum diameter at an intermediate portion of the body portion, and gradually decreases as it approaches to a proximal end portion of the body portion, and the diameter of the screw blades of the body portion gradually decreases from the intermediate portion of maximum diameter to a distal end portion of the body portion, such that an outer contour of the screw blades in a cross section taken in an axial direction of the body portion has an arc or generally circular shape.