An anchoring element and an dental anchoring member for fixation in a first bone tissue and in a second bone tissue, each comprising an apex (1, 12) and 5 a first fixation portion (3, 13) disposed at the apex (1, 12), both adapted for fixation in the first bone tissue, a basis (6, 16), and a second fixation portion (5, 15) disposed at said basis (6, 16) and adapted for fixation in the second bone tissue, and an intermediate portion (4, 14). The second fixation portion (5) of the anchoring element has the form of a truncated cone while the second fixation portion (15) of to the dental anchoring member is threaded and comprises at least one groove forming cutting unit transverse to the threads and disposed at the intermediate portion (14). A dental anchoring unit for fixation in the os zygomaticum, the dental anchoring unit being elongated and comprising an apex (24) and a fixation portion (25) disposed at the apex (24), both adapted for fixation in the os zygomaticum, a basis (26), and an end portion (27) disposed between the fixation portion (25) and said basis (26). The fixation portion (25) has the form of a truncated cone having the smaller basis adjacent to the apex (24) and the larger basis adjacent to the end portion (27).