Slow Expansion In Cleft Patient With Quad- Helix

The quad-helix appliance was developed with a vision to generate low force magnitudes. The treatment of posterior crossbite is routine in pediatric dentistry; thus, consensus over orthodontic and orthopedic changes occurring with the use of the quad-helix fixed appliance is of fundamental importance in primary dentition. The inclusion of four helical loops in the design led to increased appliance size, which in turn extended the range of the forces generated and improved the system's flexibility. The main advantages offered by the quad-helix appliance are that child or parent compliance with the treatment is not strictly necessary, and that the patient enjoys greater comfort and better adaptation. Moreover, the hygienic procedures involved are simple, total treatment times are short, and the activation forces needed are smaller as compared to other orthodontic appliances.