Hyrax Expanders(upper/lower)

This appliance is used for rapid expansion of the upper dental arch.

It consists of a “hyrax screw”, which is held in place with a metal framework. The bands of the appliance are cemented to the first molars.

Activation of hyrax appliance

Young growing patients initially 2turns/day 4-5 days followed by 1 turn/day

DURATION REQUIRED FROM LAB : 2 days

REQUIREMENT FOR LAB : Upper and lower( type 3) dental stone models without voids made from good alginate impression