The Frankel appliance is created by Dr. Rolf Frankel of Germany, It is a type of functional appliance designed to correct certain types of bite misalignments and jaw discrepancies (class II and class III) in growing individuals. It helps in guiding the growth of the jaw and teeth into a more desirable position.

The Twin Block appliance is another orthodontic device used to correct misalignments (normally class II) in the jaw and bite. It consists of two separate parts, one for the upper teeth and one for the lower teeth, which work together to reposition the lower jaw forward. By encouraging the jaw to grow in a more favorable position, it helps address issues like underbites and promotes proper alignment of the teeth and jaws.

The Bionator appliance is a type of orthodontic appliance used to correct jaw discrepancies and align the teeth. It’s designed to encourage proper growth of the jaw by guiding its development and helping improve the bite. This removable device is often used in younger patients during their growth phase to address issues like overbites or underbites.