The use of fixed and removable functional appliance in children

– Twin block: theory of design, alternatives, advantages;

– Comparison of fixed and removable functional appliances;

– Modifying appliance design based on clinical сases;

– Predictable decision making;

– "Early" and Standart Twin Block;

– Treatment timing and clinical cases:

- Class II,

- Crossbite,

- Lateral open bite,

- Protrusion of upper anteriors,

- Protrusion of lower anteriors,

- Retroclined upper anteriors.

– Transition of fixed appliences.