In order to further facilitate the insertion of the dental implant into the bone, 3 plurality of apex indentations 13 are spacedly formed in the insertion root portion of the dental implant body 10. Referring to FIGS. 1 to 3 of the drawings, in a preferred embodiment of the present invention, each apex indentation 13 has a V-shape cross section defining two blade surfaces 131 cutting into the dental implant body 10 from the tip of the first end 11 of the dental implant body 10. At these two blade surfaces 131, the cross section of the asymmetric thread 20 is exposed and the blade edge 23 of the asymmetric thread 20 forms one or more cutting blades 24, wherein the dental implant of the present invention is screwed in the bone, the cutting blades 24 are the first part to cut into the bone. If the bone is hard, some bone will be drilled out by the cutting blade 24 but will be reserved inside the indentations 13. In a preferred embodiment, the dental implant body 10 has a total of three apex indentations 13.