Functional Appliances: Frankel Appliances

The Frankel appliances are removable designs invented by Professor Rolf Frankel. The Frankel philosophy uses the vestibules to enhance favorable growth in developing dentition and restrict undesireable muscle forces. Thus, the Frankel appliance is reported to provide an “ideal” environment for maximum arch development and proper skeletal jaw relationship. The three most commonly used designs are the Frankel II, Frankel III and Frankel IV. 

How To Send A Case
All Functional Appliance designs require accurate working models. A construction bite should be provided to indicate the amount of mandibular advancement. Acrylic designs require a posterior opening of 2mm to 3mm to allow for proper appliance fabrication.


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