Fixture device for tooth implant

摘要

The implant body (10) and at least the tension screw are made of titanium and the tension screw has a shaft part (22), less in dia. than the threaded shaft, between its threaded shaft (24) and a screw head (26) supporting on an inner ring shoulder of the crown or bridge structure. A ring-shaped sealing edge (30) is concentrically formed on the face ring surface (18,28) of the screw head and the implant body. The sealing edge has a trapezoidal cross-section of which the dimensions are as follows: Basic width = 0.10 mm, width of flat face ring surface = 0.04 mm, sealing edge height = 0.05 mm, radial distance of sealing edge from outer periphery of support part = 0.05 mm.