Class III (underbite) Grummons Protraction Facemask therapy. Upper and lower jaws are inherited separately, and they can vary in size and proportions. The Grummons Facemask is a helpful orthopedic appliance to promote upper jaw and upper dental arch development. This treatment is hugely beneficial to growing patients. Patients wear their facemask at night…great things happen in the night! www.thebraceplace.org
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