| 摘要 |
An implant screw includes a first end and a second end. A drive boss terminates a first end thereof. A first boss is formed behind the drive boss and a second boss is formed behind the first boss. A self-tapping thread is formed on a second end of the implant screw. At least one flat surface is formed along the length of the self-tapping thread. A threaded hole is formed in the first end of the implant screw. The implant abutment includes a first end and a second end. A second boss cavity is formed in the first end of the implant abutment. A first boss cavity is formed on a bottom of the second boss cavity. A drive boss cavity is formed on a bottom of the first boss cavity. A counter bore is formed through a second end of the implant abutment to receive an attachment bolt. The attachment bolt is preferably used to attach a first end of the implant screw to the first end of the implant abutment.
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