| 摘要 |
<p>Dental implant, comprising an abutment (2) for connection with a fixture (1) by means of a Morse- taper coupling, with the installation of a truncated- cone shank (21) of the abutment (2) into a corresponding cavity (11) exhibited by the fixture (1), the said abutment (2) being provided with an appendix, having polygonal cross-section (22), which is positioned below said shank (21) and to be fitted into a corresponding impression (12) provided in the bottom of the said cavity (11) of fixture (1), the abutment being also provided, on the side opposite to said appendix (22) with respect to said shank (21), with a portion (20, 24) intended for supporting a dental prosthesis (D), the said appendix (22) can be rotated about its longitudinal axis, relative to the said shank (21) of the abutment (2). The said appendix (22) features an upper stem (220) whose external wall is Morse-tapered and the said shank (21) is internally provided with a Morse-tapered cavity inside which said stem (220) of the appendix (22) is destined to be fitted.</p> |
