| 摘要 |
A dental implant includes an elongate fixture having outwardly flaring walls as one goes upward along the fixture, and an abutment coupled to the top of the fixture having inwardly tapering walls. The abutment is designed to support a prosthesis such as a crown. The upper surface of the fixture extends outward from the abutment to provide a narrow band or shelf on which a lower surface of the crown can rest. |
