| 摘要 |
<p>The abutment has an apical base part, where a coronal adjacent transition part is provided at the base part. A coronal adjacent occlusal part, which is provided at the transition part, has an apical lying, circulating flange area. The flange area is formed with running platforms (4), which lie axially and closely, and with step areas (8, 9, 10), which run adjacent to one another. Each of the step areas is formed with a sloped section and a vertical section with respect to a longitudinal axis of the abutment.</p> |
