This range of abutments share the same features as the lock on Screw fit abutments, but rely on  friction  for retention and are screwless. This type of abutment is ideal in the posterior jaw where screw loosening has been reported as a problem. The abutment angles available are 0, 5  and 10 degrees in both regular and offset Hex's.

The lack of a screw in this design means that the (IAI) is held together by the cold weld formed when the abutment and implant are pushed together. This design may prove useful in the posterior jaw where space it at a premium and where it maybe difficult to gain access to the abutment screw for tightening. It also means that the force of the patient biting together will actually aid the connection in remaining tight and secure so providing a longterm simple solution.

The abutment hex has the added advantage that when fitting the final restoration the abutment  locates in the internal implant hex. This avoids the need for a positioning jig as it is obvious if the abutment is in the correct position. Complete abutment seating is achieved by having the patient bite together on a cotton wool roll. The cold weld is then formed and the abutment is secure.