Activation key

The Extension Crest device is indicated for horizontal bone expansion in the alveolar area. It consists of a main arm, a secondary arm, a stepped body, an activation screw and a hinge. Its micrometer screw allows a distraction of 0.5 mm on each turn to be carried out, to obtain the required horizontal bone increase. The retaining steps and the sandblasting of the surfaces ensure the device is well anchored to the cortical bone, without the aid of fixing screws. Its extremely tapered shape (1.2 mm thick body) allows it to be inserted even in particularly narrow crests (about 4 mm). The device is available in a single size: length 10 mm - width 4 mm