| 摘要 |
<p>In a dental prosthesis having a post stem, (22) a neck (24) and a head, (26), the stem has a terminal segment (41) at the end opposite the head and an intermediate segment (43) with an uneven surface between the terminal portion and the head. The radial extremities of the uneven surface extend precisely to the contour of a right circular cone (44) tapering In the terminal direction, and the radial extremities of the outer surface f terminal portion extend radially outward beyond the con .tour of this cone. A socket is drilled into the alveolar bone using a drill bit having the same conical taper that the extremities of the uneven surface follow. The prosthesis is nserted into the socket with some pressure so that the term nal portion deforms the alveolar bone only at the deep en d of the socket, locking the prosthesis into the socket and ringing the extremities of the uneven surface into firm su rface contact with the wall of the socket.</p> |
