[Dentists Adalgisa Piazza and María Gringauz contribute to the Maxilo Facial Surgery (period: 1926-1946)].

The author refers to the works performed by these Argentine professionals, and their contribute to this branch of Surgery during the 20 year-period they were in the Medical Service of Dr. José María Jorge, at Durand Hospital, where they carried out their research and attended on lots of patients; among them one whose clinical case is described in this article.