[Expansion of a lower shallow vestibule by Schmid and Mormann's operation]. / Prohloubení dolního melkého vestibula operací podle Schmida a Mörmanna.

ABSTRACT

In the introduction the authors give a brief account of the development of different methods used for correction of a low, shallow vestibule by Schmid and Mörmann's operation which is a modification of Edlan and Mejchar's method. With regard to the favourable results obtained with this operation so far, the authors recommended its wider use.