H-Screw with Silver Wrench

Description

One of a kind telescopic design with a clearly inscribed measurement scale, for fixed maxillary expansion, with or without acrylic. It allows maximum expansion, even in the most narrow mouths. Easily activate this screw from the front of the mouth, using a special small silver hex wrench (included). The spindle is nylon friction coated to prevent back-turning.

The H-screw is made of stainless steel, and the directional arrow is stamped on the screw body. One full revolution of the hex sleeve equals 1mm expansion. One full revolution of the hex sleeve equals 12 activation “swings” of the wrench. Includes 1 small silver hex wrench and very detailed instructions. You may also purchase additional silver hex wrenches.

Be careful to only bend the legs using a heavy facebow 3-prong plier. Using any other tools may damage the leg joints. These screws are available in 12mm and 18mm expansion sizes.

Sold individually.