| 摘要 |
The utility model refers to the screw implant (1) jawbone with coronal compression thread (4) threaded spirals (11a-11j) and apical self-threading groove (6) with the threaded spirals (16a, 16b) whose steps threaded (10, 15) are the same as the coronal chapter of the implant (2) apical in the final position, at least in chancellors bone tissue is incorporated compression thread (4) to which apical in the final position in the maxilla-bone tissue was incorporated to self-threading groove (6) as both the inner and the outer diameter of the compression thread (4) at least in its apical cone of coronal in thins the apical direction. The axial length of the threaded compression (4) is from 2.5 to 1.875 multiples of the axial length of the self-threading groove (6), respectively, from 1.5 to 1.125 multiples of the axial length of the self-threading groove (6), and that the radial depth (14) of self-threading groove (6) is greater than the radial depth (9) on the threaded compression (4) in the apical area, preferably from 1.875 times up to 1,125 time sand that the angle of the taper (Beta) on threaded spirals (11a-11j) of compression thread (4) is greater than the angle of the taper (Alpha) on threaded spirals (16a, 16b) of self-threading groove (6), preferably from 1.875 times up to 1,125 times. |
