| 摘要 |
<p>The invention relates to orthopaedic stomatology. The dental implant for prosthetic dentistry comprises a root portion in the form of an element having an elongated shape and a blind hole, and an abutment in the form of a rod with a noncircular cross section which is inserted into the cavity of the blind hole, with one end of a coiled compression spring which is arranged in the cavity of this hole being fixed to the base of said abutment. The blind hole is formed with a cross section which repeats the cross section of the rod, said rod having, on the end which interacts with the coiled spring, a spherical head with a diameter greater than the transverse dimension of the rod, wherein a depression with a spherical shape is formed in the wall of the blind hole in the root portion, with this depression being in response to the spherical head of the rod and having a height greater than the height of the spherical head of the rod in order to provide for the axial movement of this rod over the section of the depression with a spherical shape and to provide for angular shift.</p> |
