| 摘要 |
A dental implant assembly containing an integrally-formed abutment which has a top section, a bottom section integrally joined to the top section, and a passageway extending through these sections. The passageway is formed by a series of sixed stepped bores which initially decrease in size and then increase in size. The top section of the abutment has a cross-sectional shape substantially like a polygon; the shape is formed by alternating linear and arcuate walls.
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