Earned 200 points | Haupl

20 NOA learning progress point

Karl Haupl later expanded. Monobloc developed by Pierre Robin (surgeon) in 1902 is considered to be one of the first functional appliances in Orthodontics. The Monobloc was a modification of Ottolengui’s removable plate.

https://en.wikipedia.org/wiki/List_of_Orthodontic_Functional_Appliances