| 摘要 |
Casting abutment for a dental implant that includes an apical socket portion, a transition portion bordering coronally on the socket portion, and an occlusal portion bordering coronally on the transition portion, having an apical circumferential collar area. The collar area is provided with an axially closer lying first circumferential platform and with at least two adjacent circumferential step-like areas, wherein the largest diameter of a first step-like area is smaller than the smallest diameter of a second step-like area the second step-like area lying apically with respect to the first step-like area.
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