| 摘要 |
The present invention provides a locking-taper abutment which has a crown bonding layer having a good polishing workability and sufficient bonding ability that an artificial crown is firmly supported on the crown bonding layer. The locking-taper abutment includes a post part which is inserted into a well provided in the fixture while enlarging in diameter from bottom to top. The locking-taper abutment further includes a body part. The body part has a seating part extending upwards from the upper portion of the post part exposed to the outside of the well while a diameter of the seating part enlarges from a bottom to a top. The seating part is supported on an inner surface of a gingiva under a gingival crest. The body part further has a vertical part extending upwards from an upper surface of the seating part, with a stopper provided around an outer surface of the upper portion of the seating part. The locking-taper abutment further includes a crown bonding layer covering both the upper surface of the seating part and an outer surface of the vertical part. The locking-taper abutment makes it easy to execute a dental implant operation. Furthermore, The locking-taper abutment prevents an artificial crown bonding agent from flowing into the gingivae.
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